Cosworth T5 to RV8 4.6 and Dowell pins

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Dixie6789
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Cosworth T5 to RV8 4.6 and Dowell pins

Post by Dixie6789 » Tue Nov 19, 2019 9:25 pm

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


Mark

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Re: Cosworth T5 to RV8 4.6 and Dowell pins

Post by ChrisJC » Tue Nov 19, 2019 9:29 pm

Could you just not turn some yourself on a lathe?

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Dixie6789
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Re: Cosworth T5 to RV8 4.6 and Dowell pins

Post by Dixie6789 » Tue Nov 19, 2019 9:47 pm

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.

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Re: Cosworth T5 to RV8 4.6 and Dowell pins

Post by unstable load » Tue Nov 19, 2019 11:53 pm

You would need a 4 jaw chuck to turn those out.
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Re: Cosworth T5 to RV8 4.6 and Dowell pins

Post by stevieturbo » Wed Nov 20, 2019 1:36 pm

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.
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Re: Cosworth T5 to RV8 4.6 and Dowell pins

Post by Dixie6789 » Thu Nov 21, 2019 6:05 am

Didnt think of doing that. That is easy enough to try.

Thanks.
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Re: Cosworth T5 to RV8 4.6 and Dowell pins

Post by minorv8 » Fri Nov 22, 2019 5:14 am

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.


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Re: Cosworth T5 to RV8 4.6 and Dowell pins

Post by Dixie6789 » Mon Dec 02, 2019 8:22 pm

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.
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