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#551 |
Newbie
Join Date: Mar 2013
Location: Charlotte, NC
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![]() Hi TB!
I just installed an M90 in my 1993 945T and I can't get the clutch to disengage. What's the best way to adjust the engagement point of the clutch? In 1st gear with the rear end off the ground, the wheels spin the same even if the clutch pedal is fully depressed. The clutch setup is off another TBer's 945T, with a flat flywheel, 850 clutch disc, and a pressure plate - though I couldn't say which one (I imagine it came with the flat flywheel). Since its last installation, the clutch disc was replaced (damaged in shipping) and the flywheel was refaced. The clutch fork sticks out of the bellhousing perpendicular to the input shaft, and the pivot ball is already spaced on 4 washers. The slave cylinder rod is ~4 inches long. With the slave installed, the throwout bearing rests against the pressure plate. With the clutch pedal fully depressed, the slave moves the clutch fork ~1cm. The hydraulic system was bled by pressing the pedal & bleeding the slave. I tried a reverse pressure bleed but it didn't go anywhere. The master cylinder rod that attaches to the clutch pedal will spin, but that doesn't appear to adjust the rod length. Where should I start adjusting? I can post a video of the clutch actuating if it would help with diagnosis! Thank you! |
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#552 |
<Master Tech>
Join Date: Nov 2002
Location: California
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![]() I would really really really bleed the clutch. I did a Mini Cooper transmission recently and it called for a special tool to compress the slave cylinder during bleeding and I was, like, " I don't need that ****!" And I was wrong. Couldn't get the cclutch to relase. Wouldn't even go into gear. I made a special tool, rebleed, and got it to work.
I doubt you could even smash a dog dish pressure plate against a flat wheel, but maybe. Plate could also have bent or worn fingers. A fresh one should have been installed. I forget exact spec for clutch pedal throw, but 1 cm may not be enough.
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#553 |
Newbie
Join Date: Jan 2016
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![]() Just wondering if I can pick your collective brains?
![]() So, I'm building a 240 with a T6 and whiteblock M90. What would the best clutch set up be for 370-400bhp and 460ishNm? 850t5 240mm solid flywheel with shorter bolts. 850r clutch and a either a 850r pressure plate or Sachs 707 (is this a direct bolt on fit?). Maintain the original external slave cylinder, fork and bearing or go to a concentric slave? Is there a better set-up that doesn't cost the earth? Any recommendations for UK suppliers? I'm waiting to hear back from TTV. Cheers for your help. ![]() |
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#554 | |
Board Member
Join Date: Dec 2007
Location: Shropshire, England, UK
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#555 | |
Newbie
Join Date: Jan 2016
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Concentric master cylinder it is then. I'll have a look at the ones you recommend but maybe I can go Volvo 850? Just thought I would clarify. I don't mind the prices of Volvo and Sachs new, so don't mind spending a few £££. I'm not in the position to spend on a custom clutch I don't think. I think the 850R organic plate will be fine. It's more the pressure plate really and what's best. Last edited by Mule; 01-21-2017 at 12:25 AM.. |
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#556 |
Newbie
Join Date: Nov 2016
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![]() Hi guys, can somebody ensure me, the gearbox on picture
http://www.prestolholding.cz/admin/u...2fdd4b8013.jpg is M90 whiteblock? Thanks a lot Last edited by pujdeme_domu; 02-24-2017 at 04:21 AM.. |
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#557 |
Newbie
Join Date: Dec 2013
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![]() Hi! Where on M90 I can find identification plate? I found number 6942485 on back side, it enough for detect modification M90?
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#558 | |
Volvo upgrades
Join Date: Sep 2005
Location: North Wales
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#559 |
Volvo upgrades
Join Date: Sep 2005
Location: North Wales
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#560 |
Newbie
Join Date: Nov 2016
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#561 |
Newbie
Join Date: Apr 2017
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![]() I am planning to put a M90 on my 1994 940 b200ft.
can i use the pressure plate from the m46 setup with a TDI clutch? It has the same specs as far as i can see but im not sure. Is there a difference between the m46 and the TDI pressure plate? both are 228mm |
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#562 |
Våga Vägra 8V
Join Date: Apr 2006
Location: Lower Saxony
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![]() oh.. my.. god.. i opened it... this... is.. a mess :D
does anyone have plans of the m90? ;) This is the first time i opened something and fearing not being able to put it together again :D Last edited by MadDog_945; 03-08-2018 at 07:50 AM.. |
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#563 |
Board Member
Join Date: Aug 2011
Location: Hungary
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![]() Good pics, keep them coming!
I'm curious about the bearing sizes, i hope they are not some special 'only for m90 only' ones. Getting the preload right with new bearings is going to be pita though, more likely because I don't even know if the factory specs exist in any greenbook.
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#564 | |
Våga Vägra 8V
Join Date: Apr 2006
Location: Lower Saxony
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