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Cosworth T5 to RV8 4.6 and Dowell pins

Posted: Tue Nov 19, 2019 9:25 pm
by Dixie6789
Evening.
I have mated my T5wc to the RV8 4.6. Dialed in the bell housing and got 20 thou out at 12pm/ 6pm.

Does anyone know where to get offset dowell pins for the RV8. I think I am looking for 10 thou? But will need to YouTube to confirm.

Thanks Mark

Re: Cosworth T5 to RV8 4.6 and Dowell pins

Posted: Tue Nov 19, 2019 9:29 pm
by ChrisJC
Could you just not turn some yourself on a lathe?

Chris.

Re: Cosworth T5 to RV8 4.6 and Dowell pins

Posted: Tue Nov 19, 2019 9:47 pm
by Dixie6789
I have a lathe, but no idea how I would turn them down to make an offset dowell.

Lakewood can supply 0.007" pins but they are in the States, I was hoping there would be a uk source.

Mark.

Re: Cosworth T5 to RV8 4.6 and Dowell pins

Posted: Tue Nov 19, 2019 11:53 pm
by unstable load
You would need a 4 jaw chuck to turn those out.

Re: Cosworth T5 to RV8 4.6 and Dowell pins

Posted: Wed Nov 20, 2019 1:36 pm
by stevieturbo
Just turn some dwells down smaller by the required amount, and then before tightening the BH up, ensure things are pushed in the correct direction ?

The dowels dont really do anything once things are tight.

Re: Cosworth T5 to RV8 4.6 and Dowell pins

Posted: Thu Nov 21, 2019 6:05 am
by Dixie6789
Didnt think of doing that. That is easy enough to try.

Thanks.

Re: Cosworth T5 to RV8 4.6 and Dowell pins

Posted: Fri Nov 22, 2019 5:14 am
by minorv8
You can also do the offset dowel on a 3 jaw chuck. The trick is to put a thin shim between the work piece and one jaw.


Re: Cosworth T5 to RV8 4.6 and Dowell pins

Posted: Mon Dec 02, 2019 8:22 pm
by Dixie6789
I managed to make some 0.014" pins, they dont look great but are accurate.

Have got the run out to below 0.004".

Not easy, but hopefully will work. It was 0.020" out.

Mark.