m90 in wich 900?

[HansW]

Hallo
And thanks for the answer -- in plain english:
I can use the older (pre 1995) flywheel which I trust more, than the new type in combination with the 228 MM disc from the new type?
Is there a chassis number from which on the M 90 L2 gearbox was fitted in the 945 with the B 230FK engine? can it be determined by the code on the chassis plate?
did the B 230fk engines come with the piston cooling? I did not notice the L on the engine sticker in my 1996 B 230FK?
sorry, for asking all those questions -- but I am planning to buy One of the last 945' myself at some stage--.
Greetings from ireland, Hans

[BB-Q]

If you want to use the earlier flywheel in an M90 situation, then just use the clutch from a late TDi 940. This is what I've done in mine, as have some other UK members and it works.

Originally Posted by HansW

Hallo
And thanks for the answer -- in plain english:
I can use the older (pre 1995) flywheel which I trust more, than the new type in combination with the 228 MM disc from the new type?
Is there a chassis number from which on the M 90 L2 gearbox was fitted in the 945 with the B 230FK engine? can it be determined by the code on the chassis plate?
did the B 230fk engines come with the piston cooling? I did not notice the L on the engine sticker in my 1996 B 230FK?
sorry, for asking all those questions -- but I am planning to buy One of the last 945' myself at some stage--.
Greetings from ireland, Hans

I will answer this question/statement when I get home from work in a few hours.

[stealthfti]

I've been following this thread with some interest: I will be doing a M90 conversion in a 765T in a couple of months.

My request is for the Volvo [and possibly aftermarket sources such as Sachs] part numbers for the clutch parts needed to use with a 9in stepped 2.4 flywheel...which I already have, as well as the pedal setup. The part number(s) for the slave cylinder would also be assistive. [my USA parts 'fiches do not list anything regarding the M90s.]

Thanks,

TF

OK. Here we go:

The M90 comes with the dual-mass flywheel. It is the heaviest flywheel of them all and only good for two things. Assist with easy take-off and smooth low rev characteristics (and as a boat anchor of course...). Do not use it in a powerful application. I would not dare to do that anyway.

You can use the older (1991-1994) dog-dish flywheel with the M90.

The M90 + dual mass flywheel uses a 240mm clutch setup.
The M90 + dog-dish flywheel uses a 228mm clutch setup.

The M90 has 20 splines.
The M46, M47 and

And there are two easy clutch options:

(All parts are interchangeable between the two options)

Option #1:
Standard 940TDi clutch setup. Good for ~400NM.
Clutch disc 940TDi, organic, 20 splines, 228mm, Sachs p/n: 1862 468 031
Pressure plate, stock, 228mm, Sachs p/n: 3082 204 033

Option #2:
Custom clutch setup. Good for a little over 450NM.
Clutch disc 850GLT, organic, 20 splines, 228mm, Sachs p/n: 1862 314 032
Pressure plate, strengthened/performance, 228mm, Sachs p/n: 3082 999 763

If you want even more clamping force, use the pressure plate I mentioned above together with one of the following clutches:

Clutch disc 850GLT, organic race, 20 splines, 228mm, Sachs p/n: 1864 999 996
(Will hold a little over 510NM)

Clutch disc 850GLT, sintered, 20 splines, 228mm, Sachs p/n: 1864 999 993
(Will hold a little over 580NM)



For stealthfti:
Slave cylinder from ENEM, p/n: KN20010B1
Slave cylinder from Volvo, p/n: 6843913 (for the few NA cars with M90 the p/n is 6843914)

Do you want more part numbers? Throwout bearing, pedals etc., then just ask and I shall supply



For HansW:

Is there a chassis number from which on the M 90 L2 gearbox was fitted in the 945 with the B 230FK engine? can it be determined by the code on the chassis plate?

I don´t think you can see which M90 version the car has by looking at the chassis plate. You will have to look at the plate on the gearbox. And they only came in 1998 945 Classic/Turbo, mostly in the cars with B230FK.

did the B 230fk engines come with the piston cooling? I did not notice the L on the engine sticker in my 1996 B 230FK?

Yes, it has piston cooling. And your block is much newer than the L-version (at least the B230FK´s I have seen).

[TheJoyOfSix]

Originally Posted by frpe82

For stealthfti:
Slave cylinder from ENEM, p/n: KN20010B1
Slave cylinder from Volvo, p/n: 6843913 (for the few NA cars with M90 the p/n is 6843914)

Do you want more part numbers? Throwout bearing, pedals etc., then just ask and I shall supply

Note that this is the same slave cyl as used by the M46/M47 Hydraulic clutch cars in either Left or Right Hand Drive and is available from FCP Groton for $69

[MikeHardy]

yeah i had an M90 slave in my 244's M45

[stealthfti]

Thank you. I will now be able to track down the clutch parts for the conversion. Your assistance, gentlemen, is appreciated.

TF

[Ruben]

I think if someone would do the swap from auto to m90 and could show how to with lots of pictures I might give it a go, at this moment I'm not confident enough and still have other things on my to do list......

Originally Posted by Ruben

I think if someone would do the swap from auto to m90 and could show how to with lots of pictures I might give it a go, at this moment I'm not confident enough and still have other things on my to do list......

JW is on his way, and I will do the swap too very soon.

EDIT:// And pictures will come.

[HansW]

Hallo
Thanks for the assistance, -- that clears up the clutch / flywheel issue.
All i am looking out for is a good 1998 estate -- may take some time though.

[JW240]

ok.

What about using the M46 turbo PP with dog dish flywheel and 850 glt clutch disc? i have heard it is better than a diesel clutch?

BTW, there is no need to run a duall mass flywheel, the D24TIC that was sold with the M90 did use a duall mass flywheel...

Originally Posted by JW240

ok.

What about using the M46 turbo PP with dog dish flywheel and 850 glt clutch disc? i have heard it is better than a diesel clutch?

That was actually what I said a few posts back, hehe...

Option #2:
Custom clutch setup. Good for a little over 450NM.
Clutch disc 850GLT, organic, 20 splines, 228mm, Sachs p/n: 1862 314 032
Pressure plate, strengthened/performance, 228mm, Sachs p/n: 3082 999 763

The pressure plate mentioned is a pressure plate that can be used with the M46, but this option is stronger. The stock M46 pressure plate will not hold 300NM+, even if the 850GLT clutch is used.

[JW240]

Originally Posted by frpe82

That was actually what I said a few posts back, hehe...

Option #2:
Custom clutch setup. Good for a little over 450NM.
Clutch disc 850GLT, organic, 20 splines, 228mm, Sachs p/n: 1862 314 032
Pressure plate, strengthened/performance, 228mm, Sachs p/n: 3082 999 763

The pressure plate mentioned is a pressure plate that can be used with the M46, but this option is stronger. The stock M46 pressure plate will not hold 300NM+, even if the 850GLT clutch is used.

hmm. I mean the normal M46 turbo PP, nothing special. Is that the PP you mean as well?
I searched for the sachs race engineering pp (strengthened M46 unit) and it was around 350€, while a stock M46 turbo unit is 100€ and a 850 glt disc ~60€. Am i missing something?
The first solution has a a 420€ price tag, the last solution a 160€ pricetag...
I dont need much more than 350Nm for now, but i'd like to ditch the DM flywheel..

[SteveMD]

I'm trying to figure out the vintage, etc of this M90 I got here. It is supposed to have came off a 2.0 redblock. the cast-in numbers on back of it are as below:

93 (with kind of a circle cast around it)
1023650-7 (with the 7 cast into a raised circle)
1285

[JW240]

Originally Posted by stevemd

I'm trying to figure out the vintage, etc of this M90 I got here. It is supposed to have came off a 2.0 redblock. the cast-in numbers on back of it are as below:

93 (with kind of a circle cast around it)
1023650-7 (with the 7 cast into a raised circle)
1285

dont you have the sticker on the driver side of the box?

This one: http://jw.cautela.nl/gallery/main.php?g2_itemId=1355

I think those numbers you have found are just from the casted part, not from the whole gearbox.
determine the gear ratio of the first, second and 5th gear. The reduction ratio's are found on wikipedia or via google. That way you should be able to determine the type. But since it is a early M90, it is most likely a M90L or M90H (the circle with 93 in it is the year of the casting methinks).

Please use the file below. It is extremely useful for finding out a lot of stuff about the gear ratios, M90 part numbers, speeds at different gears with different wheel sizes etc.

And yes, I made it

[SteveMD]

No sticker on the side of the box. Thanks for the other info, though. It will be useful.

Originally Posted by stevemd

No sticker on the side of the box. Thanks for the other info, though. It will be useful.

Put it in 1st gear and turn the input shaft 20 turns. Look at how many turns the output shaft has done. Then do the same with 5th gear. Then you can figure out which box it is, or you can post it here.

[SteveMD]

Originally Posted by frpe82

Put it in 1st gear and turn the input shaft 20 turns. Look at how many turns the output shaft has done. Then do the same with 5th gear. Then you can figure out which box it is, or you can post it here.

Going home for lunch and will do.

[HRPufNStuf]

I did an M90 swap last summer.

Only thing you need that is different to the M46 stuff available on this side of the Atlantic is 1. M90 clutch fork,
2. TOB
3. clutch plate (from M90 equipped 900 diesel ).
My clutch plate was aftermarket AP and I'll see if I can dig up the part number.

I used a new M46 slave /master and hose from FCP, LH 2.2 dished 9" flywheel and a complete 900 TDi clutch kit. The SACHs website lists the pressure plate as the same one for 900TDi and all 700Ti so they should be the same. The slave cylinder that was installed on the M90 when I got it had the same part FTE casting number as the new one from FCP.
I have all the VADIS M90 part numbers/bits if you need them.

Originally Posted by stealthfti

I've been following this thread with some interest: I will be doing a M90 conversion in a 765T in a couple of months.

My request is for the Volvo [and possibly aftermarket sources such as Sachs] part numbers for the clutch parts needed to use with a 9in stepped 2.4 flywheel...which I already have, as well as the pedal setup. The part number(s) for the slave cylinder would also be assistive. [my USA parts 'fiches do not list anything regarding the M90s.]

Thanks,

TF

[HRPufNStuf]

http://www.we-todd-did-racing.com/we...ZkMzF5NTQx.jpg



A few part M90Volvo OE part #s

M90 Clutch release fork #3549983
Clutch release fork pivot bushing (ball seat) #9163851
pivot pin #3549638
TOB(there are multiple supercessions) #3549391(#9143281)
slave cylinder #6843913
Diesel M90 clutch driven plate#9143348
Diesel M90 Clutch pressure plate #3520553

link to my swap thread

http://forums.turbobricks.com/showth...158#post877158

Originally Posted by V70R740T

I did an M90 swap last summer.

Only thing you need that is different to the M46 stuff available on this side of the Atlantic is 1. M90 clutch fork,
2. TOB
3. clutch plate (from M90 equipped 900 diesel ).
My clutch plate was aftermarket AP and I'll see if I can dig up the part number.

I used a new M46 slave /master and hose from FCP, LH 2.2 dished 9" flywheel and a complete 900 TDi clutch kit. The SACHs website lists the pressure plate as the same one for 900TDi and all 700Ti so they should be the same. The slave cylinder that was installed on the M90 when I got it had the same part FTE casting number as the new one from FCP.
I have all the VADIS M90 part numbers/bits if you need them.

[Alex Buchka]

I think we could all benefit if the content of this thread was reformatted and added to the articles section. There is a lot of solid info here...

Originally Posted by Alex Buchka

I think we could all benefit if the content of this thread was reformatted and added to the articles section. There is a lot of solid info here...

I think I will make an info/facts/FAQ thread from this info in the articles section soon.