Author Topic: to skin a cat (m20 flywheel swap) (Read 17625 times)

2002maniac · « **on:** February 22, 2007, 07:56:28 PM »

i didnt really feel like taking my starter apart. Why not just swap the toothed rings? Not that hard actually!

asubimmer · « **Reply #1 on:** February 22, 2007, 08:16:29 PM »

will the m42 ring fit the m20 flyheel?

2002maniac · « **Reply #2 on:** February 22, 2007, 08:29:50 PM »

looks like it. I ran out of acetylene before I could get the ring off the m20 flywheel. I'll have to get the bottle filled saturday.

D. Clay · « **Reply #3 on:** February 22, 2007, 10:08:55 PM »

Tha sum in ja noo uh tee!

mcfir7 · « **Reply #4 on:** February 23, 2007, 06:52:27 AM »

could it fit?nvr taught of that..u r smart ass dude

dude8383 · « **Reply #5 on:** February 23, 2007, 12:05:45 PM »

i believe this is what MM do...

2002maniac · « **Reply #6 on:** February 23, 2007, 12:13:21 PM »

Quote from: dude8383;20041

i believe this is what MM do...

I guess great minds think alike :p

D. Clay · « **Reply #7 on:** February 28, 2007, 02:59:39 PM »

Any update?

2002maniac · « **Reply #8 on:** February 28, 2007, 11:25:03 PM »

Oh yeah, it worked.

asubimmer · « **Reply #9 on:** February 28, 2007, 11:43:14 PM »

awsome!

BrandC · « **Reply #10 on:** March 01, 2007, 12:04:44 AM »

aaawesome

dude8383 · « **Reply #11 on:** March 01, 2007, 09:33:02 AM »

shit thats pretty cool.

exactly how did you do it, an air chisel of some sort?

2002maniac · « **Reply #12 on:** March 01, 2007, 04:38:41 PM »

Quote from: dude8383;20356

shit thats pretty cool.

exactly how did you do it, an air chisel of some sort?

I just heated up the gear with the torch and beat it off with a hammer and chisel.

dude8383 · « **Reply #13 on:** March 01, 2007, 05:10:28 PM »

Quote from: 2002maniac;20367

I just heated up the gear with the torch and beat it off with a hammer and chisel.

and vice versa right?

2002maniac · « **Reply #14 on:** March 01, 2007, 07:42:54 PM »

Yup.

I also discovered that if you have the flywheel lightened on the engine side, you dont need to space out the M20 flywheel as described in a few of the writeups.

So basically:

Have flywheel lightened
Swap gears
Use the 323 TOB and M20 clutch set

I'll post some more pics after I finish lightening the flywheel.

Here's a sketch showing why you need to space out the flywheel unless you have it lightened. The engine side of the flywheel is to the left. The M42 (did I write M44? oops!) flywheel is flat but the M20 one it is recessed. Removing .230" would essentially make it flush like the M42 part. Over .350" can be removed and will save quite a bit of weight.