Get a used 323 flywheel and M20 starter. Get everything else new from www.blunttech.com
Light weight flywheel?
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ok i just bought a m20 flywheel, clutch disk, and pressure plate to go into my m42 what else would i need to do to make everything work? (besides swapping the starter ring gear) do i need a different bearing? or anything else different than the parts that are on the m42?
oh and would the m20 flywheel bolts be ok/short enough?Last edited by eu teo; 03-20-2010, 02:39 PM.87 325ic sold
91 318i sold
95 ///M3 sold
02 325xi manualComment
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You need an e21 323 throwout bearing, and you need to drill the little spacer on the M42 flywheel to space the M20 one out from the block. Find some bolts from an M20 auto... they should be pretty short.
I wasn't able to swap the ring gears on mine (you need like an OA welder) so I just used an M20 starter.Originally posted by Grueliusand i do not know what bugg brakes are.Comment
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I just intslled my JB racing aluminum flywheel. its definitely fun in 1st and second. Much better throttle response as well. No chatter.[/url]
Team USA Wrestling 67KG
Team USA Wrestling Strength And Conditioning CoachComment
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Ok i just did this 2 weeks ago. If you are doing the m20 conversion all you need is late model 325is flywheel, late model 325is clutch kit ( pressure plate, clutch disc, throw out bearing) and late model starter THE WIRING IS THE SAME for the m20 starter as the m42 so you can just swap the whole starter.
You need the m42 pilot bearing because the nose of the trans input shaft is larger on the m42 trans then the 325is trans. (Atleast mine is 91 318is)
You also need to remove the spacer thats on the m42 flywheel, just drill out the 2 rivets and enlarge one hole to fit over the guide pin on the crankshaft to space the flywheel away from the block.
Also you have to shorten your flywheel bolts mine are 40mm total length, im using a spacer under the bolts as well which acts like a one peice washer for all the bolts.
The clutch engagement point is around half way releasing the pedal.Comment
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Ok i just did this 2 weeks ago. If you are doing the m20 conversion all you need is late model 325is flywheel, late model 325is clutch kit ( pressure plate, clutch disc, throw out bearing) and late model starter THE WIRING IS THE SAME for the m20 starter as the m42 so you can just swap the whole starter..
i thought you have to use a e21 323 throwout bearing.. how did you get away using one from a 325is?87 325ic sold
91 318i sold
95 ///M3 sold
02 325xi manualComment
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I went through all the trouble to find a 323 tob with a part number I got off of m42club and it was NLA. So my parts guy cross referanced the number and found that the e28 528e was the same if I remember correctly. Then once I put that tob side by side with the 325is one the difference was so little that I just stayed with the 325is one as it came in the clutch kit.
Then once I had my trans out I put the 325is an 318is tob side by side and the 325is one was just a little bit shorter. Which gives you release and engagement point about half way through pedal travel.Comment
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i brought my flywheels to a machine shop and they swapped the ring gears for me for $10, they pressed out both starter ring gears and pressed the m42 ring gear on the m20 flywheel for just ten bucks. thats what i did..87 325ic sold
91 318i sold
95 ///M3 sold
02 325xi manualComment
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