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5 - speed swap for Motronic 745i
KristjanTomorrow I`m going to take out whole engine and swap my tranny from auto to manual. I will try to take some pictures for you guys Wish me luck ;-) I have all the parts and I really hope that everything goes fine. Although I haven`t decided what tranny I will use. I have one ///M5 and one 3.5 5 speed tranny. Kristjan from Estonia. BMW 745 `85 full stock Edited by - Kristjan on Aug 06 2002 05:58:43
Afshin-Switzerlandwill be awaiting to check your pics and posts, I'm also heading to do the same as soon as I get everything together... Still haven't got a tranny, I've heard that ///M5 (E34) tranny wouldn't fit ?! Have you got a (rare) E28 ///M5 tranny ? Regards, Afshin. 1982 745i
Kristjan
quote:
Have you got a (rare) E28 ///M5 tranny ?
yes, I have E28 ///M5 tranny :) My friend has E28 M535 with Alpina B7 engine. He swapped his tranny to Alpina and old one is mine. BTW! It only costs about 60$ :) BMW 745 `85 full stock
M545iThink E34 '90 M5 tranny fit M30 engines and are strong!!!!! Getrag 280 I guess.
Afshin-SwitzerlandThe ///M535i got a normal M30 engine. The mods are only a ground effect kit. So, its tranny is not different from the normal 735i or 635csi. I thought that you're talking about the very rare E28 ///M5, which got the S100? engine (not sure about the name) 4 valve twin-cam engine, which also fited the ///M635csi and the later model called just ///M6. The tranny out of these cars is strong and a staight bolt on on our E23 745i's. As about E34 ///M5 tranny, I've been told that it doesn't fit. No need to say that I was pretty surprized, cause I allways thought they're the same as the older ///M cars, Maybe diff. mounts ? Maybe diff. length ? Any idea ? Regards, Afshin. 1982 745i
quote:
quote:
Have you got a (rare) E28 ///M5 tranny ?
yes, I have E28 ///M5 tranny :) My friend has E28 M535 with Alpina B7 engine. He swapped his tranny to Alpina and old one is mine. BTW! It only costs about 60$ :) BMW 745 `85 full stock
KristjanI think that it`s ///M tranny. It has 1st gear down. Normal M30 tranny is 1st gear up. Any ideas? BMW 745 `85 full stock
Afshin-SwitzerlandOK, that's the Getrag sport tranny (and not a ///M one) that you're talking about. It's got no overdrive (a real 5-speed) on these trannys, the 5th gear ratio is the same as on the 4th on the normal 5-speed tranny. that used to be an option, avalable on every E23, E24, and E28. I doubt that it be internally any "stronger" than the normal 5-speed one. However it would be a definately better choice on our turbo engined cars, because of its closed gear ratios from 1st to the 5th (turbo will keep on spooling). Regards, Afshin. 1982 745i
Kristjan Ok Thanks! BMW 745 `85 full stock
TCDAfshin, You need to find a Getrag 265 two piece tranny to use in your 745i. The driveshaft you are buying from me will only work with this tranny. The 265 is plenty strong for your car. The 265CR is actually weaker and prone to failure. They are also very expensive to buy and rebuild. Find a tranny from a 1983/84 533/633/733. These had the 265 and also a lighter flywheel. It is 16.5lbs instead of 23lbs! Todd
Afshin-SwitzerlandMany thanks Todd, what the heck is the "CR" in 265CR standing for ? In what is 265CR different from "normal" 265 ? On which series was it to find ?(to avoid it, forsure!) Does the 265 also take 15+ PSI of boost ? Regards, Afshin. 1982 745i
TCDThe CR is the close ratio. Also known as the "dog leg". First gear is lower left. You want the Over Drive 265 with a .81 fith gear. This will be perfect for with your 3.07 diff. I will be running the same setup in my M535i. 745i engine, 265OD tranny, 3.07LSD and hopefully 15psi! Todd
Afshin-SwitzerlandGotcha, thanks Todd ! Afshin.
M545iHere's my opinion on 265CR. I own a M535i (euro)which has the 265CR gearbox and the 3.07LSD. For the 218hp non-turbo this is ok for the road but if you put the 745i engine (+10PSI) in an E28 with a 3.07LSD the 265CR gearbox will be too short and you will have hardly spooled up the turbo and you need to shift again. Remember that the 265CR does not shift as fast as a tiptronic. So you will loose all effort in changing gears all the time. The 265 or even 260 is ok and gives the turbo time enough to built the power and keep it through the gears. In two weeks I will test the 260 gearbox(normal 5 speed) with the 3.07LSD and my 745i engine (10psi) on the track. I have another 265CR lying around that I might try sometime. I will report my findings. M545i
Afshin-SwitzerlandGreat, I'll be waiting for your posts. You already ARE where I'd like to be ... !!! Regards, Afshin. 1982 745i PS, The final rear end ratio of 265CR in combo with 3.07 LSD should be the same as I got it right now, with my 3HP22 (third gear ratio is 0.81) it's actually not that bad ....
Afshin-SwitzerlandOh sorry I ment 1 : 1 as the last gear's ratio on 3HP22 and not 0.81, which is for 4HP22 ... Afshin.
M545iAfshin, you got a L-jetronic 745i right? Do you run stock boost, if not what system do you use to increase boost? regards, M545i
Afshin-SwitzerlandYep, mine is a L-Jet one. I'm "still" running stock boost but waiting to get my upgrade kit from 745i.com guys. I'm expecting to run 15+ boost levels and something around 350+ HP / 500+ Nm ..... God it's gonna be fun !!! Regards, Afshin. 1982 745i PS, The 3HP22 sucks.... with this tranny, my car is allways running in two modes : OFF (-3000 RPM) or ON (+3000) !!!
dnliiiAfshin- I agree with you ... It seems that I am always waiting to get on the freeway so that I can use the turbo. Around town it is very rare that I get to use any boost. '83 745i with 15psi Don Lawrence
M545iThink you guys need 5 speed too, on the L-jetronic conversion to 5 out of 525i (big six) or 528i fits very easy. Need pedal box but other is straight forward. You'll see the car becomes an all-killer!!! all the best, M545i
KristjanI got the engine out It was quite easy........ Pictures coming on monday or tuesday. Kristjan BMW 745 `85 full stock
Jon 86 745 MS
quote:
I got the engine out It was quite easy........ Pictures coming on monday or tuesday. Kristjan BMW 745 `85 full stock (NOT FOR LONG!!)
Jon Jacobs 86 745i (Das Rocket) 16 psi+ Boost with Team WWW.745i.com Performance Parts
JensJon! its = "Die Rakete" Sincerely Jens
Afshin-Switzerland[quote] Think you guys need 5 speed too, on the L-jetronic conversion to 5 out of 525i (big six) or 528i fits very easy. Need pedal box but other is straight forward. You'll see the car becomes an all-killer!!! all the best, M545i I know, I know .... I just can't wait until I get everything together and finally to get rid of this damn 3HP22 ... !!! My car is just a dead duck until 50 kmh ..... Regards, Afshin. 1982 745i
KristjanWithout engine, the car is much faster. It came out without problems.I know that it`s much harder to put it back. Tonight I will clean the engine and in near future it will have new paintcover( I don`t know is it the right word ). Kristjan BMW 745 `85 full stock
M545iNice pictures!!! Are you gonna put engine and tranny together and then back in car? For me this is easiest!!! Show us pictures of the complete car! M545i
Kristjan[url]http://www.hot.ee/crac/UUS/745iA_1.jpg[/url] [url]http://www.hot.ee/crac/UUS/745ylevalt.jpg[/url] [url]http://www.hot.ee/crac/UUS/745%20seest_3.jpg[/url] [url]http://www.hot.ee/crac/UUS/745%20seest.jpg[/url] These pictures are taken about 1 year ago. BMW 745 `85 full stock Edited by - Kristjan on May 14 2002 01:47:18
Afshin-SwitzerlandNice pics, enjoyed whatchin'em ... Funny, on the secound pic, just for a secound, I thought you've got the clear lenses ... !!! Regards, Afshin. 1982 745i BTW, Here is my 745i's pic. page: http://www.bmwe23.de/afshin.htm
M545iFunny, have the same interior as you have, but mine is bad! M545i
Jon 86 745 MSI like the shop you have to work in! Nice boom to remove engine with. Looks like you are going to have fun. Jon Jacobs 86 745i (Die Rakete) 16 psi+ Boost with Team WWW.745i.com Performance Parts
Afshin-Switzerland
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Funny, have the same interior as you have, but mine is bad! M545i
I'm gonna fit a leather interior (tan color) somewhere around the end of this sommer. It's a shame that they're not powered. But it's the only leather I've found that deserves to replace my "new-alike" velours .... I'm gonna keep the central consol with power seat's switches built in, just as a decoration or a souvenir ! Regards, Afshin. 1982 745i
KristjanI visited yesterday our local Turbo mechanics. Car has about 220000km on the clock and I decided to check turbocharger. They advised to replace something in it. I hope it will not cost me much. Kristjan BMW 745 `85 full stock Edited by - Kristjan on May 18 2002 08:41:24
Kristjanturbo repair bill was 85$ Also I found and bought 633 -84 tranny. Price was 100$ In next month I will eat only porridge BMW 745 `85 full stock
M545iOK now you have 3 tranny's, which one will you use??? I tested the normal 5 speed today with 3.07LSD on the track, way too long, but for the autobahn fantastic, at 110mph I am at 4000rpm in 5th Also power enough for driving around but if you don't want the high topspeed go with the ///M535i dogleg. M545i
scottie100+ on the Autobahn!! I am jealous of you Europeans! Scottie Sharpe San Jose CA Discussion Board SYSOP 84 745i 85 535i
KristjanI think that I will use that 633 tranny. If it`s bad then next choice is the Getrag sport. I don`t use getrag now because it has one bad bearing. Although I have the new bearing for it. BMW 745 `85 full stock
KristjanPictures for you guys. I have been very very busy......so it`s nearly impossible to work with car. Most beautiful things in the world Tranny!!!!-633, 84 I also bought new Bilsteins. BMW 745 `85 full stock
cliffokristjan, on the third photo you have posted, it shows a grey wire with a round black plastic end, hanging down level with the crank pulley near the blue paint on the block. can you tell me what that is for,please. does anyone else know what it is for? clifton.
KristjanIt is for ignition. Direct translation from Estonian language is "Ignition counter" Jon or Jens will tell you. BMW 745 `85 full stock Edited by - Kristjan on Jun 13 2002 07:00:34
bilodeaulynnI converted my 84 745i to a 5 speed several years ago. Amazing how it transformed the nature of the car. A Getrag 265 out of an 85 535i works great. {Edited 12-04-02} no need to change any electrical connections. Lynn Lynn J. Bilodeau Edited by - bilodeaulynn on Dec 04 2002 20:10:16
cellguruHey Lynn, did you use a bypass or blowby valve when you made the change? Thanx Kevin So many 745's so little time
JensSorry buddy, but steering wheel is not stock :) Sincerely Jens
Bob745_DallasCliff, That grey wire is the crank position sensor used by the diagnostic connector. The 745 has 3 different sensors for crank position and they feed 3 different components; i.e.; the Motronic gets its signal from the one in the bellhousing, the knock control computer gets the signal from the one on #1 plug wire, and the diagnostic connector has the one on the front crank pulley.
ikerrHi, I have a 5-speed converted 745i (Motronic), I'm not getting the boost I did with the auto. If you have a chance to check that Bentley's manual for the wire to jump, it would be great. Otherwise, I'll certainly look for a Bently's manual - thanks for a great tip. - Ian '85 745i '72 2002
KristjanI also need these pin numbers. Thanks in advance! BMW 745 `85 full stock
Jon 86 745 MSHey Lynn, Please post the wire numbers to jump. Also did you use the TPS from the 745 with the auto transmission or did you use one from a car with a Standard Transmission? If you used one from a car with a standard what wires did you connect to what pin? Thanks Jon Jacobs 86 745i (Die Rakete) 16 psi+ Boost with Team WWW.745i.com Performance Parts
cliffothanks for the info on where the wire goes, bob. when we finished my conversion, that wire was not connected anywhere, and i have often wondered where it should be going and if it not being connected would harm the car. obviously not. thanks again!!!
Jon 86 745 MSHey Cliff did you get my email? Just to let you know I am not mad at you! Just a littled pissed at the banking system. Send me some pictures of your car! Jon Jacobs 86 745i (Die Rakete) 16 psi+ Boost with Team WWW.745i.com Performance Parts
cliffoi did jon and thanks! the banks all over the world have an excellent reputation for putting the customer second to their own profit making/taking.(one man's opinion!).my scanner quit a while back, i'm getting another and will post some pics on the board, unless you want some via post? clifton
Kristjan
quote:
Sorry buddy, but steering wheel is not stock :) Sincerely Jens
OT but is this better? BMW 745 `85 almost stock Edited by - Kristjan on Jun 28 2002 06:47:52
bilodeaulynnSorry for the delay guys. I will look up the pin numbers to jump this evening and post either tonight of tomorrow. In answer to other questions: So far have not installed any type of blow off valve etc. Just using the stock boost controls without problems (other thatn you have to shift really fast to keep from losing boost between gears). I used the stock throttle position sensor. {edited 12-04-02} no need for any electrical changes. Will post numbers tonight or in the morning. Lynn Edited by - bilodeaulynn on Dec 04 2002 20:12:16
bilodeaulynnHere we go. {edited 12-04-02}. there is no need for any electical modifications. Lynn Edited by - bilodeaulynn on Dec 04 2002 20:14:16
KristjanSo....bad news. I reinstalled the engine and encountered some problems. 633 tranny fits to the engine but joist(I hope it is the right word)of the tranny is way too short.It need to be about 10cm longer to attach to the frame. Second problem was that drive shaft wich was claimed to be 535, don`t fit. Too long! It would be OK if I could put togheter old drive shaft rear and new ones front. But they don`t fit togheter. Seems that front half of the "new" drive shaft is OK - center bearing attachments fit correctly. Solving the mystery! Kristjan Afshin, how are you doing? BMW 745 `85 almost stock :)
M545iKristjan, what do you mean with joist, is that the tranny support to fix the tranny to the chassis? If you mean the support then you can buy it new for a very reasonable price, I bought one new for my dogleg sportgearbox and paid only $18. Hope this helps you somehow,
KristjanYep the support is the right word ! Update - I got that drive shaft problem fixed. I`m heading to junkyard right now! BMW 745 `85 almost stock :)
KristjanI can not believe it - tranny ORIGINAL support costs 20$ I just bought little (10cm) hose that costs 18$ Their prices are mystery for me. BMW 745 `85 almost stock :)
Afshin-SwitzerlandKristjan, I'm heading way up to Germany tommorow morning. Once there, with a fellow member of our german E23 club, we'll start that swap (he got the tranny). No need to say how scared and nervous I am. I hate to discover, right in the middle of the operation, hey we still need this or hey we've forgot that .... But one thing's allready scaring me, he (my friend in Germany) wrote me that we need to also reset something in L-Jet box (brain) cause the injection sequences are not the same for auto and 5-speed ... ?!! Does anyone here had heard any thing about this specific problem ? I've allways thought that specially with L-Jet models the 5-speed swap is a straight bolt on ?!! Mischa, Did you have to reset any thing on the L-Jet brain, or it just workes fine on your 5-speed tranny ?
Afshin-SwitzerlandOK, I wrote to him again and he insistes on things like I have to expect bad (rough) idle and engine's stalling by reving (from idle)... What du you guys think about these issues ? If any setting needed, how do I have to proceed ? TIA, Afshin.
KristjanI´m not sure but why should you have some problems??? Almost same wlywheel with same amount of tooth! Are all sensor(crank, flywheel) same? What M545 thinks? BTW I found that support. Kristjan BMW 745 `85 almost stock :)
Afshin-SwitzerlandWell the guy says that the amount of calculated injection is different to keep an engine on regular idle with automatic or manual 5-speed, and when you push on gaz pedal to take off after shifted into first gear, it should stall .... ???!!! Any thoughts ? TIA, Afshin. PS, Guys, I'm talking about L-Jetronic system ....
M545iHi guys I am back, here we go: I didn't change anything to any of the electronic items I have on my L-jet. The engine runs a little rougher at idle than before but this is because my blowoff valve stays open at idle (too strong vacuum). But when I hit the gaspedal the car accelerates normally and strong. I don't think you can reset or change anything in the ECU to make it a 5 speed runner, the ECU doesn't take any signal from the auto tranny. If there would be some kind of modification needed I would like to know too!!! Thanks, Mischa
Kristjan Engine almost togheter. I need two 12h work days more. Kristjan BMW 745 `85 almost stock :)
Afshin-SwitzerlandAwaiting, awaiting ..... !!! Take care, Afshin.
M545iKeep head up, almost done! Tell us where you are now. Mischa
KristjanNew pictures : The stick !!! Kristjan BMW 745 `85 almost stock :)
KristjanI noticed that we have another Estonian guy here! 728iEST Tere! Kes oled ja kust tuled. Kirjuta paar rida. Mis autoga tegemist? Terv Kristjan BMW 745 `85 almost stock :)
Kristjanuhhhhh.......7 hours work and I have new exhaust system. We worked from 21.00 to 03.00 It was like 19 hours workday yesterday. I slept about 3 hours and now I have to install rear speakers to LADA - Russian miracle car.(My worst nightmare) I`m so tired and I don`t want rebuild anything in near future. I just want to drive with my car. I love that car!!! Well....my exhaust components are 3 meters of 89mm pipe and one center muffler. I don`t have yet rear muffler .... I guess no driving in Hospital district EDIT: Bad day coming. My neighbour called me and said that he found two thiefs picking my appartment lock. Get a job ¤&=(/")¤&#! Very tired Kristjan! BMW 745 `85 almost stock :)
KristjanHelppppppp!!!!!! I tried to start the car yesterday - no luck. No spark at ignition coil. I think I have problem with wires. Can somebody tell me what are correct readings in those wires wich go to the coil?? I have two wires coming in and there is little white contact between them. If I rember correctly there was +12v in both of the wires. Can somebody take picture, under the hood? Hey guys! Now I really need your help! tia Kristjan BMW 745 `85 almost stock :)
KristjanI found instructions from Jarmo`s site! [url]http://www.viinikellari.com/745/More/motronic-to-trans_inter.htm[/url] Maybe this solves the problem. BMW 745 `85 almost stock :)
scottieWow Kristjan, you've got a lot going on over there!! I'm not sure I follow your problem. Which are you not getting.... spark or fuel? Scottie Sharpe San Jose CA Discussion Board SYSOP 84 745i 85 535i
KristjanNo spark from ignition coil. Simple as that! BMW 745 `85 almost stock :)
scottieCheck three sensors: The crank sensor near the fan. Two flywheel sensors (are the wires hooked to the right sensor?) Also, have you swapped the coil? Scottie Sharpe San Jose CA Discussion Board SYSOP 84 745i 85 535i
KristjanI haven´t touched the crank sensor! I tryed both wires to the flywheel sensors - nothing Coil is old and it was good! I will be in chatroom. EDIT: Auto transmission cable was connected to the Motronic when I tested. BMW 745 `85 almost stock :) Edited by - Kristjan on Aug 13 2002 05:31:36
Bob745_DallasKristjan, The front crank sensor only feeds the diagnostic connector so you can forget about it as a problem source. Have you checked your main relay. Also have you confirmed that 12V is getting to the main relay on the green wire with the key in the run position? This green wire feeds from the green/red wire at the OBC relay under the dash. That's one of the black boxes hanging down in your photo above (the one with the two green flat 4-pin connectors. The reference sensor on the bell housing could be the culprit. Swap the reference and speed sensors and see what happens. Also check to make sure that nothing has gone wrong with the pick-up (wedge) welded to the back of the flywheel for the reference sensor.
KristjanBack again! Ignition coil is fine! I also measured some wires. Can somebody check them on their car? At the ignition coil - both wires +12V (continuously) At the fuel injection nozzle - both wires +12V (continuously) BTW! Fuelpump and windows does not work! Kristjan@searching the problem! Where is main relay??? Edited by - Kristjan on Aug 14 2002 00:30:31
Bob745_DallasMain relay is in the engine bay on the firewall passenger side. The one with the silver cap in your picture. Did you try forcing the fuel pump by manually engaging the fuel pump relay? You can take the top off of the relay and force it closed or do what John Stein did and drill a tiny hole in the cap to allow closing with a tooth pick or similar. Your voltages sound right to the coil and injectors. The Motronic provides the ground signal to fire these. All of your symptoms sound like main relay not functioning. When it's out you won't get fuel or fire. The fuel pump relay gets its start signal from the main relay. Incidently, one of the green 4-pin connectors on your OBC relay looks like it may not be fully inserted in the picture. Your window problem is probably the circuit breaker on the dash panel. Have you plugged it back in and switched it on?
KristjanThank you Bob! You`ve been very helpful! I check main relay as soon as I can. Kristjan BMW 745 `85 almost stock :)
KristjanCould Motronic cause such a problem? BMW 745 `85 almost stock :)
Bob745_DallasYes the Motronic could cause the problems indicated, but it's never the first place to look. Trouble is, when you've had all of the wiring disconected that is apparent in your photo's it would be very easy to miss hooking up all of your grounds. This could be catastrpohic to the Motronic unit. More than one unit has blown a ground foil internally due to faulty grounds in the engine bay. Most of the time when this happens the injectors stay wide open and flood the engine with gasoline. Dangerous situation to say the least. If you find that your unit has been harmed I can tell you where to send it for repair at a very reasonable price. The same source has extra units available and can provide/install the original Tuoma chip at the same time. Just email me if interested. Meanwhile...I'm betting that the Motronic is not the problem.
KristjanOK! At the main relay there is one wire broken. It`s red and is togheter with thicker red wire. What is that black box, which is located next to main relay. Those wires are broken too! ( previous owner was %@£$£€ ) I connected all the groud wires correctly. Kristjan BMW 745 `85 almost stock :)
Joe745iKristjan, Just ran out and looked hoping it might help you a little. But on my car, there is a small red/white wire and large red/white wire that feed into relay together. Then, towards the firewall, there is one single thick red wire. Also, I am not sure what that box is, and I have a "well sealed" rubber boot around the plug and see no other wires going into it. Joe
KristjanThanks Joe! I will post if I find something! We have another 745 in Estonia(2 pcs alltogheter) and I will try his Motronic. Kristjan BMW 745 `85 almost stock :)
Bob745_DallasThe red wire is your 12 volt feed from the battery to the main relay. The car WILL NOT START without this 12 volts. The black box next to it is your barometric pressure sensor for high altitude operation.
Kristjanmuhahahahaaaaaaa IT`S ALIVE Thank you guys so much! Special thanks to Jon and Bob. I could not have done it without you guys! I now go and have a class of finest scottish whiskey! Kristjan BMW 745 `85 almost stock :)
Afshin-SwitzerlandWow! Happy for you buddy ! OK, now go and get at work to be the first one how reports about that boosted 5-speed feeling ....otherwise, I'll be the first one, next week !!! Take care, Afshin. 1982 745i PS, loved the pic ... did you get it before or after drinking that fine scottish whiskey ???? LoOL .... !!!!
Bob745_DallasCongratulations!
Kristjan
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Wow! Happy for you buddy ! OK, now go and get at work to be the first one how reports about that boosted 5-speed feeling ....otherwise, I'll be the first one, next week !!!
I think you´ll be the first one. That thing which is top of the turbo and attached with two allen screws there is oil line connected to it - it`s broke and I had car running about 10 sek and oil came out of there! Very big leak. There is no .......deem......don`t know that word. What`s the word, when you over thighten the nut? Stripped???
quote:
PS, loved the pic ... did you get it before or after drinking that fine scottish whiskey ???? LoOL .... !!!!
After lol lol lol....... Kristjan BMW 745 `85 almost stock :)
KristjanHi! It`s been a while since I wrote here! I`ve been sick(winter is coming) and had no time to work with car. Yesterday I got car running but unfortunately it ran about 5 min. Engine has no idle. I had to hold down gas pedal for idle - I hope that idlevalve wires are in loose! Also there seems to be problem with driveshaft - the car shakes like freezing elephant! Clinking noise from engine - Have to track it down though! And the exhaust sound, I certainly need one OEM back muffler! It sounded like jet airplane taking off - approx. 120dB! That`s pretty much all! Kristjan BMW 745 `85 almost stock :) Edited by - Kristjan on Sep 19 2002 02:58:59
Afshin-SwitzerlandHey Kristjan, Yesss it's been a looong time ... I was just thinking about to write a post asking if what happened to you boddy, funny that I saw you've already wrote !!! I hope you're fine now. As you've probably already know, I only could have fun for about 50 Km with my newly fitted 5-speed ... read other postes to find out why ... As about your driveshaft's vibrations, did you watched to match the marks on both ends, when fitted them together ? If not, that's forsure why you got such a vibrations now. About no idle, it's funny because I had the oposit problem (idle too high) right after the swap. I guess that was because of the lack of torque converter and my 5-speed flywheel being lighter than it. I also had some minor, really very few, hesitations at about 2500 rpm on 5th overdrive gear, crusing speeds. Once agian I culpite the lack of torque converter and need of a different L-Jetronic tuneup .... Regards, Afshin. 1982 745i (5-speed)
KristjanThanks Afshin! I did forgot the marks - oh silly me! I`m bit more worried about that clinking noise coming from engine! Have to check it out! It`s very very difficult build cars like E23 in Estonia. Almost impposible to find parts and things! When we add here my financial possibilities then we have one helluva dream come true! I was so happy when I drived my car yesterday although there is lot`s of problems! But I know that with your(all board members) help I can make it even better! Kristjan BMW 745 `85 almost stock :)
KristjanWell! The engine running but the noise is still there! Strangest thing is that suddenly there is noise and the other moment it is gone! I have to study a little bit more. It seems to coming from 5-th cylinder, I thought that there is one bad rocker arm but then one cylinder would not work. Engine idles almost perfectly (all cylinders working)! I have one idea, there is little screw in the rocker arm, where you can adjust valve. Maybe it is stripped and valve clearance is way to big and eccentric adjuster is loose! Any help would be helpful! Kristjan BMW 745 `85 almost stock :)
M545iKristjan with one eccentric loose you would almost certainly not have a nice idle. But check it anyway and also the bolts from the oil spray bar above the camshaft. Maybe it is a valve that from time to time stays closed. Is all of your electrics OK? Could you detail wire colours that you had to swap? Thanks a lot and good luck, Mischa
KristjanYesterday I checked the engine, luckily it`s allright and working just fine! Clinking noise is coming from tranny. uhhhhhh that was close one! Kristjan! BMW 745 `85 almost stock :)
ra0507Does anyone know whether a Getrag 280 trans from an e28 M5 is suitable for the 745i? I have seen various versions of the 260 and 265 indicated as being the most appropriate for the 745. Rick
ra0507Does anyone know whether a Getrag 280 trans from an e28 M5 is suitable for the 745i? I have seen various versions of the 260 and 265 indicated as being the most appropriate for the 745. Rick
M545iYes, that one fits. You could even use the tranny out of the E34 M5 3.6 which is also a 280. They are stronger than the tranny's out a M535i. Mischa
ra0507Misha, Thanks. A couple of other questions: Will I need to shorten the driveshaft? Where does one get the pedal assembly? If new, does anyone have the parts list? Rick
cellguruYour best bet is to find a parts car and get it all. The pedal support bracket on the E23 built after 9/84 is the same for manual and auto, but you also have the hydrualics and etc to contend with. You also need some pieces for the console for the manual conversion. I suspect you will need a different drive shaft. Kevin Heiner So many 745's . . . . so little time
NovalSeems like Im the luckyone, cause I baught my 745iA with 5-speed manual already. It works perfectly, but the pedal is a bit too hard to press. Last week, standing in traffic jam, I think I had to press the pedal 10 000 times. And now its not coming back as it should, if you know what I mean. It stays down there. But think that its not a big probl. My home where my BMW lays.
scottieIf your pedal does not return, you could have a bad slave cylinder. However, check your pedal box assy first to see if it is cracked near the pedal hinge. Scottie Sharpe San Jose CA Discussion Board SYSOP 84 745i 85 535i
NovalThnx. I`m gona check that thing soon. I have to check that in kind of service, cause its prety complicated to do it myselfe. Im in very good possition, cause I baught the car from mechanical and he realy loves that 745. So theres no fee for me. My home where my BMW lays.
GrundelwolfI have done this conversion ...i used a 535 trans in a 84 745il..used 635 pedals with a custom drive shaft, but a stock one will work but because of the extra 3' in the rear of the body a standard 745i shaft does not work ...also the models of trans are important when this is done ..if the 280 is used the trans is aproxx 2 1/4 inches longer than the 265 but this can also be fixed by a riser shim and peg for the trans. The shifter assembly should come from a 633 because of the four door seating arangement placing in a closer arrangement to the firewall .. and with any luck you wont wear thr wheels off of your creeper with the amount of rolling in and out of the under car (thats how i did it ) it took me 11 days to get mine from start to end ..
GrundelwolfInsert the clutch and pedals even with a normal cluth this sachs assembly is still eaisly pushed with a manual assembly .. but the slave and master are not very far apart, in real relation.. and the slave uses next to no capacity for the volume ..anyway.. it took me almost 4 hours to bleed mine the best way is to go and get a draw through bleeder and find the bleeder valve and then draw it through manually... if this isnt avaliable then you and a friend are going to be there for a bit but be very sure to check all the connections and hoses for seepage (that is why is will fade awy like that) and 10000 ..well kep goin almost there, but it will come back.. good luck.