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Discussion Starter · #1 · (Edited)
Clutch for L46 (removed) flywheel replacement required ..? (+picture)

Dear all,

My clutch said me bybye this WE, and I'm really embarrassed because I want to repaire quickly my car for Lemans next month (I'm from France)

My engine is a 1970 L46 / CTH so : manual 4 speed gear box.

I a looked on summit and I am completely lost with the huge number of clutch. I've you got some advice for a stock engine (maybe a LT1 cam in the future)

Other question, the most important ! I need to order at the US this clutch, and want to do it during one week end (I'll borrow a repair shop machine to lift the car and work under it) so are all the small block engine fitted with the same clutch ? or do I need to be careful ?

If I give you the number of the gear box, are you able to give me the right number clutch, or do I need absolutely to remove the old clutch before buying the new one ? to avoid mistakes ?

Thanks in advance for your answer.
 

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Discussion Starter · #4 ·
Hello Liam :)

I managed to remove the clutch, it's was more easy than I though ! :) I like doing mechanics on the C3 it's interesting and well designed.

I've ordered a clutch on Ecklers same as you've shown to me for my car (a 11" & 10 splines) mine was completely worn ..

I've got a question concerning the flywheel, do I need to replace it because of the little heat crack ? will it make chatter / or be dangerous ? or can I just machine it to have a good surface and it will be fine ?

Here is a picture of it :
 

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That is something i haven't seen before, I'd be replacing it.
if a piece of flywheel let go at high RPM it could take your leg off.

Take it to a driveline specialist for advise if no one else posts here for you on this.....It could be just surface damage that can be machined.....like I said it isn't something i've seen before.



Liam
 

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although both the flywheel and clutch should already be individually balanced when you buy them, it would be best to have them balanced as a pair. Then they should be marked so after any future disassembly they can be re-assembled in the same orientation to maintain that balance.
 

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Discussion Starter · #9 ·
ok, I'll think of this, one of ma colleague has a driveshaft to balance and I'll give my flywheel and clutch at this time.

But are the sold clutch and flywheel already balanced, and will I feel the vibration or are there risks to not balance as pair clutch and flywheel ?

Other question, if I balance again the flywheel can I grind it before to light it ?
 

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Personaly I wouldn't bother with balancing and if you want to go with a lighter flywheel, they are available off the shelf.....cheaper freight:lookinup:
 

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Discussion Starter · #11 ·
as you said .. this morning I had an email of Eckler ... 370$ for shipping = cold shower.

I'll compare with Corvette Central, because they pruposed me two different ways of shipping for my last order ... one at 80 and the other at 250$ ... maybe they'll be very cheaper than ecklers with their first shipping method.

I'm looking to buy the equivamlent part and I found this : http://www.parts123.com/parts123/yb...50MDYGU19425024350G~Z5Z5Z5YES~Z5Z5Z50000050G#

Do this flywheel is a lighten one ? Are the interfaces standard ? I see that it's for LT1 and my car has a L46, are the interfaces the same ? It seems to be dependant only on differential ratio (M22) and not the kind of clutch (mine is 10 splines 11")
 
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