If you shim the pedestals, you change the angle of the contact on the valve
from the rocker. If you have roller rockers, it may not matter, but with
the stock rockers , you will get wear. I've seen it on other TR6's.
You can order shorter pushrods and they usually can be delivered pretty
quickly. Your cam shop should be able to help you with this.
Charly Mitchel
TR6 #44
----- Original Message -----
From: <toodamnfunky@comcast.net>
To: "fot" <fot@autox.team.net>
Sent: Wednesday, May 04, 2011 7:10 AM
Subject: [Fot] Shimming the rocker pedestals ?
> FoT
>
> I just built a fresh motor with a different block and discovered my
> pushrods
> are too long.
>
> I had new ( big ) valves put in and started with a prepared from stock
> block.
>
> .008 was taken off the block and I canbt remember how much off the head
> to
> give me 12.5:1 comp ratio. I would guess the head was shaved over .120b .
>
> Anyway, while doing the final assembly and prepping to run it in, my
> adjusters
> are run out all the way to max. There is a full 3/16b of thread
> projecting
> from the adjustment screw. I got cylinders 1& 2 to adjust to .22/.24 lash
> but
> when I got to # 3
>
> that's where the adjuster had no effect, that was my first clue.
>
> Our first race of the season is on the 13 th so I need to find a solution
> in
> the next few days. One thing I have always wondered about is why couldnbt
> the pedestals just be raised to compensate instead of shortening all the
> pushrods.
>
> Thanks again for input,
>
>
>
> B
>
> Jim G.
> _______________________________________________
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>
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>
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