Re: upgrading to g-grind cam

["John Van Vuren" <veedublu@prod.net>]

Cheapest way I know of holding the valves up so you can replace guides, etc
if you don't have shop air:

turn engine so the cylinder you are working on has it's piston at the bottom
of the cylinder

stuff some rope (probably 1/4 or 3/8 in diameter) through the spark plug
hole, leaving one end out!!    this should be good rope that won't leave
little fuzzies all over in your cylinder

turn engine slow so piston rises, the rope gets trapped between the piston
and the valves, holding the valves up

perform work on top end

turn engine backwards to release pressure on rope, and then remove rope

move on to next cylinder


John



>
> On Tue, 13 Feb 2001 01:08:09 -0800 "Dave Ewing" <rabbit16v@prodigy.net>
> writes:
> >Or, you could do this while the head is on!!!  Just mod (some cases
> >you
> >won't have to) a compression gauge and pressurize the cylinders and
> >pop the
> >springs off!  Just be careful not to drop them into the cylinder if
> >the seal
> >breaks!!  I have done this before and didn't have any problems
> >replacing
> >springs and valve guide seals!
>
>
> I do this regularly (at work) using a Cylinder Pressure Leakdown Tester.
> it does the same thing as Dave's device mentioned above, just fancier. It
> pressurizes the cylinder, keeps the valves held shut. Just be sure to do
> it at TDC you wont have any problems in the event you lose air, the valve
> will only drop a little way in. trust me, you don't want to drop a valve
> into the cylinder.
>
>
> Shawn Meze
> 86' Jetta GLi 8V       84' Scirocco 8V           88' Corvette "SS"
> 82' Scirocco GTi -FSP 30-   79' "Project FSP Scirocco"
> The Fastest, Quickest, Cleanest and best looking Scirocco in all of San
> Diego!
> http://www.Geocities.com/MotorCity/Speedway/1308/index.htm
>
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