Dean,
I am still a little confused...bear with me.
From your description it sounds like the valve must still be
"retained"...if it wasn't, the large round part that the retainers hold
down against the presure of the spring and the spring would be laying on
the bottom of the valve cover or pushing hard against the rocker arm.
If you remove the rocker arm, does everthing on that valve fall off?
If so, then the retainers(or parts of it) have truely failed.
I suspect that what has happened is the valve was held in a partialy down
position for all of those years and a few gentle taps migh cause the valve
guide to "let go" of the valve and let the spring pop it back to
something close to "normal"....some liberal spraying of pb blaster or so
into where the valve stem and the valve guide are might help.
Just my 2 cents worth...especially if the engine was running well to start
with.
Cheers, dave
On Thu, 28 Mar 2013, Dean Johnson wrote:
I've gone to the trouble of replacing my transaxel after having the bug off the
road for four years. I was commuting daily for about a year before the
tranny failed. (70 mi round trip)
So imagine my surprise to discover when adjusting the valves that one of my
valve stems is below the valve spring retainer. Its suppose to stick above
that so the rocker foot can push on it. This seems really bad. Doesn't this
mean my valve has been getting clobbered by the piston? Doesn't this mean I
have to pull the head and have it rebuilt, if possible, or replaced.
Or is this the one time when something seems bad but really isn't?
I suppose I could take off the rocker arm to see if the valve stem is ok, if
the valve spring retainer keepers are anywhere to be seen. I don't really
have much more money or time to throw at this.
Please send me a miracle.
Oh, Its a '71 Super Beetle with about 30,000 miles on an 1915 cc engine rebuilt
by Strictly Foreign (circa 2000). I was running it with a single 34pict
jetted for the larger displacement.
Dean Johnson
Williamson, NY
p.s. to make sure my terminology makes sense,
valve stem: skinny end of valve sticking out towards the rocker assembly.
valve spring retainer: disk shaped metal with hole in the center for valve
stem. sits on top (out board really) of the spring
valve spring retainer keeper: This I can't see but I assume there are two of
this buggers around the valve stem that sit in a circular groove around the
end of the valve stem, they keep the valve stem from doing what mine did,
sneaking back towards the combustion chamber.
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