help with starter, flywheel, slave and release bearing

Moderator: martauto

Post Reply
P_VIDDY
E30 Zone Regular
E30 Zone Regular
Posts: 426
Joined: Fri Jan 06, 2006 11:00 pm
Location: Derby

Sun Mar 08, 2015 10:46 am

My m52 is pretty much ready to drop into my e30. However I hve just read on somebody elses post that there is differences between facelift and pre facelift starters and flywheels?

I am now concerned my parts will not work when fitted.

The flywheel I have is believed to be from a 323 but I have no idea if it's pre facelift? What's the difference? (Old photo below... Before it had been cleaned up)

Image

My car is a pre facelift 325 that I was going to use the starter from... (Sorry for poor photos but it's difficult to get to)

Image
Image

Also I was going to use the e36 slave but I have also read on another post to use the e30 one? Is this correct?

Final question..
I have been unable to source a e21 release bearing so I need to space out the m20 one. What size spaces do people normally weld on?
P_VIDDY
E30 Zone Regular
E30 Zone Regular
Posts: 426
Joined: Fri Jan 06, 2006 11:00 pm
Location: Derby

Sun Mar 08, 2015 11:07 am

I have found the answer to 2 of my questions

1) use e36 slave
2) add 5mm to release bearing or fork

Still require confirmation of flywheel/starter combo though please
DanThe
E30 Zone Team Member
E30 Zone Team Member
Posts: 28641
Joined: Sat Sep 10, 2005 11:00 pm
Location: Staffs
Contact:

Sun Mar 08, 2015 11:33 am

The back of the flywheel will confirm if its the lighter/earlier one or not

But if your using the starter from the car you are converting you wont have a problem

Use the slave that matches the gearbox, 5mm is plenty
P_VIDDY
E30 Zone Regular
E30 Zone Regular
Posts: 426
Joined: Fri Jan 06, 2006 11:00 pm
Location: Derby

Sun Mar 08, 2015 11:37 am

Should of known you would come to the rescue again Dan. You might as well have a direct technical help line haha. Thanks
ryan_gwa
E30 Zone Newbie
E30 Zone Newbie
Posts: 172
Joined: Mon Nov 18, 2013 11:00 pm
Location: Renfrewshire

Sat Mar 14, 2015 5:36 pm

This is what I did for the fork, I cut up an old fork I had laying around, measured it up and welding it on top. Bang on 5mm.

Image

Bit of paint to stop it rusting. Could have took the time to make it look factory, but who is really going to see it?

Image
P_VIDDY
E30 Zone Regular
E30 Zone Regular
Posts: 426
Joined: Fri Jan 06, 2006 11:00 pm
Location: Derby

Sat Mar 14, 2015 5:49 pm

No way. I thought I invented that idea. Check my build thread on members e30s "saving a chromie. Proper stole my glory there!!!
ryan_gwa
E30 Zone Newbie
E30 Zone Newbie
Posts: 172
Joined: Mon Nov 18, 2013 11:00 pm
Location: Renfrewshire

Sat Mar 14, 2015 6:03 pm

Haha great minds and all that. I had never seen anyone else do it either, I think it's a better idea than welding the bearing.

My e30 is a chromie too, this is getting weird!
ryan_gwa
E30 Zone Newbie
E30 Zone Newbie
Posts: 172
Joined: Mon Nov 18, 2013 11:00 pm
Location: Renfrewshire

Sat Mar 14, 2015 6:06 pm

Just had a look at your thread, exact same idea! I did mine last Friday too? I'm freaked out.
P_VIDDY
E30 Zone Regular
E30 Zone Regular
Posts: 426
Joined: Fri Jan 06, 2006 11:00 pm
Location: Derby

Sat Mar 14, 2015 7:04 pm

Are you the guy I just caught looking through my window? Stalker! Haha
ryan_gwa
E30 Zone Newbie
E30 Zone Newbie
Posts: 172
Joined: Mon Nov 18, 2013 11:00 pm
Location: Renfrewshire

Sat Mar 14, 2015 7:10 pm

Sorry, must be more discreet next time.
User avatar
Jozi
E30 Zone Addict
E30 Zone Addict
Posts: 3076
Joined: Thu Nov 22, 2007 11:00 pm
Location: Dublin, Ireland

Mon Mar 16, 2015 2:11 pm

With a e21 (and e30 323) release bearing (the metal type) do you still need to do this 5mm mod? I'm using a M42 box though
User avatar
Jozi
E30 Zone Addict
E30 Zone Addict
Posts: 3076
Joined: Thu Nov 22, 2007 11:00 pm
Location: Dublin, Ireland

Sun Mar 22, 2015 12:15 am

Jozi wrote:With a e21 (and e30 323) release bearing (the metal type) do you still need to do this 5mm mod? I'm using a M42 box though
Anyone know? Id like to sort this out next weekend
P_VIDDY
E30 Zone Regular
E30 Zone Regular
Posts: 426
Joined: Fri Jan 06, 2006 11:00 pm
Location: Derby

Sun Mar 22, 2015 7:30 am

You don't need to modify the e21 323 but not sure about e30 323
User avatar
Jozi
E30 Zone Addict
E30 Zone Addict
Posts: 3076
Joined: Thu Nov 22, 2007 11:00 pm
Location: Dublin, Ireland

Sun Mar 22, 2015 12:31 pm

Just looking at pics, is the reason to do this so that the bottom of the bearing sits flush at the bottom while the tabs sit on the edge of the fork?
P_VIDDY
E30 Zone Regular
E30 Zone Regular
Posts: 426
Joined: Fri Jan 06, 2006 11:00 pm
Location: Derby

Sun Mar 22, 2015 12:54 pm

It's to take up the difference between the thicker e36 dual mass and the thinner m20 flywheel
User avatar
Jozi
E30 Zone Addict
E30 Zone Addict
Posts: 3076
Joined: Thu Nov 22, 2007 11:00 pm
Location: Dublin, Ireland

Sun Mar 22, 2015 4:32 pm

Ok so not a concern at all when using a e30 fly, clutch and box?
jmc330i
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 6621
Joined: Mon Jan 10, 2005 11:00 pm
Location: Somerset

Sun Mar 22, 2015 5:55 pm

Yes if you are using an M20 flywheel with an M42 box because the M42 flywheel is also thicker than the M20 flywheel.
James
'91 325i Sport
'93 318i touring 16v
User avatar
MrT8064
E30 Zone Newbie
E30 Zone Newbie
Posts: 143
Joined: Fri Jun 14, 2013 11:00 pm
Location: Gloucestershire

Fri Mar 27, 2015 9:23 pm

Damn. Just dropped my M52 with Getrag 240 and M20 facelift clutch/flywheel in and didn't do anything about the throwout bearing.

Will the car be underivable without the correct E21 323i bearing? or just not quite right?

Sounds like i'll have to remove the gearbox though, ultimately.
P_VIDDY
E30 Zone Regular
E30 Zone Regular
Posts: 426
Joined: Fri Jan 06, 2006 11:00 pm
Location: Derby

Fri Mar 27, 2015 9:46 pm

Lots of people don't mod the bearing and are perfectly happy. Due the the gap the biting point isn't right.
Post Reply