Thanks everybody for the input. I have no doubt the way to go will be the
correct pushrod
length but for thisB upcoming race it will be 1/16" shims. The measurements
taken so far show
1/16" should be just about right and I have the material in stock.
Thanks again for the feedback,
Jim G.
----- Original Message -----
From: "Kas Kastner" <kaskas@cox.net>
To: toodamnfunky@comcast.net
Sent: Wednesday, May 4, 2011 1:02:28 PM
Subject: Re: [Fot] Shimming the rocker pedestals ?
I have used shims under the pedestals several times. Not more than about 1/16"
though. If you do remember to drill a hole for the lube oil in the back rocker
post. B That will probably get you running, but better, shorter pushrods are
the number. B If you have racing pushrods already then just stick in a lather
and using a parting tool take off about B the same amount of material as you
took off the head and then tape the ball back into place. B You can do either
end. B Cannot do with stock pushrods as they are welded at the tips.
But, all the talk about the geometry is correct, but you will most likely get
the rocker tip back in the center at half lift with a shim. B Take a look,
can't hurt to look. You can use a bit of white grease on the valve tip will
tell you if you are correct as the pattern should be in the middle of the
valve. It might be easier to set the rocker at the half lift of the cam and
that angle should be 90 degrees. If all this is too much, then order some
shorter pushrods :-)
---- toodamnfunky@comcast.net wrote:
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.
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe: http://autox.team.net/mailman/options/fot/kaskas@cox.net
--
Never be beaten by equipment
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
|