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Re: valve adjustment - feeler friction
- Subject: Re: valve adjustment - feeler friction
- From: Tpcutter@xxxxxxx
- Date: Fri, 11 Nov 2005 15:16:08 EST
In a message dated 11/11/05 2:06:34 PM Eastern Standard Time,
<<At 7:56 AM -0600 11/11/05, Mark Rivera wrote:
>I think this might be one of those things you just have to
>experience in person, but I'm in the middle of my first valve
>adjustment and am wondering about how much friction there should be
>on the feeler gauge. >>
It's real easy to develop a feel for it. Just do a little experimentation
with just one adjuster. Tighten it until the gauge will not slide any more.
Then loosen it until the gauge falls out. Now set the adjuster halfway between
those two points,and feel how the gauge slips through with some small amount
of drag. Memorize that feeling. That is what you are lookig for.
On an Oilhead, it is real important to use four feeler gauges
simultaneously, as the adjustment of one vlave adjuster will affect the feel of the other
three. (This is because the adjuster pushes BACK on the rocker when the gauge
is installed, which moves the camshaft slightly. If you do all four adjusters
with four gauges (Intake valves .006" (( .15 mm)) and two at the Exhaust
valves of .012" ((0.30 mm))) you will get nice consistent results. This will go
a long way toward resolving surging issues.