Messages

1

How-To's / DIY M20 flywheel conversion

« on: January 28, 2009, 11:53:42 AM »

Wait what are you doing?

Trying to figure out what I need to convert my dual mass flywheel into a single mass

What about an E36 325i?

I have one.

I do not understand why you are discussing using E30 components.

I plan to use them

I'm very confused, you want to to use a M20 flywheel with a M50 clutch, behind an M50, attached to a zf, huh? Whats so wrong with just using an M50 single mass. Explain yourself.

What M50 single mass? M50s use a dual mass with an unsprung friction plate, like most E36s, including ones with the M42 engine.........
I never mentioned a ZF, I have a Getrag. Cant use M50 clutch with M20 flywheel... are you drunk?

:cool:

2

How-To's / DIY M20 flywheel conversion

« on: January 27, 2009, 05:27:29 PM »

Hi there,

Gathering the parts to do this conversion on my E36 325i, but I've got a few questions for you guys:

Looking up replacement clutch kits, the 320i clutch kit for the cabriolet has the same part number as the 325i... and the 323i and the M3!   So I'm guessing that all these clutches will be fine when doing the conversion? As long as it's 228mm??

So does this also mean that any of these release bearings can be used??

I have the M20 flywheel that will foul the block but as I'm not using it on an M42, I wont have the spacer that is required so I was going to modify the block and sump instead... or skim the flywheel (I've not decided whether I can afford to do the latter), but will this not affect the conversion yet again because of the extra length the release bearing will have to travel?

Will the slave cylinder be able to compensate this travel?

I have a 1990 Starter motor from an E30 320i touring, I've read on here that I can use a 'late' E30 325i starter.    But if all M20 flywheels are the same, then surely any starter from an E30 with an M20 engine will work??? The bellhousing pattern hasn't changed. I think the E36s just has a locating dowel where the E30 doesn't...

I'm thinking the only way to do it is to get the box out and messure the distance from the block to the prongs on the flywheel of both dual and single mass setups and then the distance from the end of the release bearing guide tube to the point where each release bearing will contact the prongs.

Maybe then you could use washers behind the fork pivot to guarantee the correct spacing as the pivots' 'shaft' is quite long.

Also, can anyone tell me how thick the flywheel spacer is (roughly)?

Thanks

Raz