quattro digest, Vol 1 #1718 - 15 msgs

[George Selby]

At 10:09 AM 6/27/01 -0400, you wrote:
>I have a Lysle  tool which is used to keep air pressure on the valve so it
>doesn't fall into the cylinder.  I have read somewhere that about 90 psi has
>to be maintained in the cylinder to keep the valve from falling.

Here's what I do:

Stuff soft cotton rope into the cylinder upon which you need to remove the 
valve springs.  Do this through the spark plug hole while the piston is all 
the way down in the cylinder, but just before the compression 
stroke.  Stuff as much rope as you can in there, it will take 6 or so feet 
usually.  Leave several feet sticking up from the spark plug hole so it 
doesn't drop in there.  Then turn the crank over by hand until you can't 
any more, but don't force it, just up to the point of resistance.  This 
will lock the valves against the head.  You can then do whatever procedure 
you wanted to do.  This method takes a while, but a lot less time than 
removing a head!


George Selby
70 F-100 Ranger XLT 400 C6
78 F-150 4x4 400 4 spd
83 Audi Coupe GT
86 Nissan 300ZX
92 Subaru Legacy Wagon AWD
gselby4x4 at earthlink.net