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Crank Shaft Locating "Dowel"


goofycarp

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Hi,

 

Forgive the Rookie Questions:

 

I am doing a 5 speed conversion on a former automatic and ready to install the fly wheel but have come to find out that the dowel that should be in the crank shaft is missing. It probably came out with the removal of the "driveplate" for the automatic. I assume it's necessary to have that installed and if so where can I get one. Also, is there a small circular plate that should go between the fly wheel and the fly wheel bolts? I think I have seen one in some diagrams on maximillian but no part#...if so, where to obtain one? It's an 8 bolt crank shaft or is it just new bolts?

 

Here's a shot of the crank shaft with the dowel..

 

Thanks for the help, don't want to mess it up at this point.

 

Cort

Screen Shot 2016-08-08 at 1.12.11 PM.png

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The dowel's not strictly necessary- in fact, without it, you can rotate the flywheel to get a fresh bit of ring gear without it.

 

However, your 'BB' for timing will be wrong.  The dowel's a $1.20 part from autohausaz.com blunttech.com, or any of the

OE BMW vendors (getbmwparts.com, etc) and unless I had a flywheel with a messed up ring gear, I'd run it.

 

The ring is only necessary if you have a flywheel without hardened bolt holes- the earlier 2002 flywheels

had a very visible induction hardening ring around each hole, and a step up around the bolt ring.

At some point, both the hardening and the step went away, and that hardened and ground ring replaced it.

I THINK they're still available- www.realoem.com will get you the part number (look at an E30 M10- I'm pretty sure they all had it)

ALSO be aware that there are 2 length bolts for the manual M10- one for the 228 mm flywheel, and one for the 215.

There may be even more variants, but if so, I've missed it.  realoem will help you there.

 

hth

 

t

 

"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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Hi Toby,

 

Thanks a million for the informative response !! This is genius !! I have the 228mm fly wheel and it has the "step up" for the bolt holes. The ring gear is perfect, no damage or wear at all. So I will contact Blunt and see if he has the dowel.

 

Saved my day and my arse !!

 

What's your paypal, I'd like to send some $ for a six pack or beverage of choice.

 

All The Best, Cort

 

 

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Thanks again Toby, I really appreciate this sort of knowledge that saves guys like me that are lacking these insights that really makes working on these cars far more enjoyable and truly saves a lot of headaches and cash in the end. So, your knowledge and willingness to contribute is very valuable to me and others. I did send $ to Blunt...

 

Cheers, Cort

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