Question on mounting flywheel-retaining plate?

[MarkB]

I'm not sure if I need a retaining plate when reinstalling the flywheel. Real OEM shows a retaining plate for some years, but not for others. Is it ok to just install with the bolts using locktite?

thanks!!

[rock141b]

Hi I have a 75 and my manual show no retaining plate, mine has no retaining plate and I used the white thread sealant locktight as the bolts go into a oil area, make sure they are clean then torque them up and your good to go, take care.

[MarkB]

Thanks, that's the reassurance I needed. Dang, I'm putting this back together after 5 years, my memory ain't that good.

best regards,

mark

[TobyB]

the plate's a hardened spacer.

It actually goes with the flywheel so that the bolts

have the right grip range. If yours didn't have

one when it came off, you're ok.

t

[john_a]

the plate's a hardened spacer.

t

Unless it is the retainer plate that was used on the 6 bolt cranks.

I've only seen the hardened spacer on later M10 (E21 for sure, I've got two 76 02 but they had flywheel swaps so long ago I can't vouch for what was there originally.) All the regular 8-bolt 02 I've had in between have had no real traceability to say they were original, but none had the spacer.

But since the original poster has '67 2000 in his sig, that might be a 6-bolt where the plate is different & was used to retain the flywheel bolts.

I think the hardened spacer on the later cars also acted as an anti-galling plate. If you choose to omit one on installation, just double check the thread engagement/flywheel center thickness situation.

[TobyB]

ooo, right- the 6- bolt block I've got has a lockplate, now that you mention it.

Don't get Caroll Smith started on lockplates... oh, yeah, you can't, eh...

t

[Tommy]

Do you know if the hardened plate has a connection with steel vs. cast flywheel? I have made an assumption that the plate was used on later cast flywheels.

Tommy

[TobyB]

Tommy, that would correlate with what I've seen,

but not all cast flywheels had it

(or I have more forged ones than I think)

It's pretty obvious in the machining on the root of the flywheel when you

look at it- the non- spacered onces have a raised pedestal to allow the flange

to be thicker, and the spacered ones have a much- reduced pedestal.

Wonder what was going on that made them change it?

t

[Tommy]

Maybe they changed to cast wheel and then some issues came up and the plate was added. Just guessing.

Tommy

[TobyB]

Yeah, that would make sense...

t