[VB] Re: was spring washer-now stretched valve stem

["Nate M." <nate@xxxxxxxxxxxxxxxxx>]

Kevin,

You've had 3(?) springs break now and found one hammered valve on the
same rocker. . .  It's time to pull the head before the valve breaks
and junks the entire motor.  Those springs breaking are a warning to
you. . . A very mild warning at that ;-)

I would recommend removing the rocker assembly and putting a
straight-edge across the valves and see if the mushroomed valve is
sticking out further than the others.  If it is, you have a pounded
seat and you're risking a broken valve.  Even if stem is just
stretching, that is just as terminal and devastating when it breaks.
Once a valve stem looses it's heat treatment from running hot they
just break in a matter of time and take the rest of the motor right
along with it.  It's time to FIX this for real.  Good Luck!!


> Well I was driving around town the other day, came out to my bus, and saw a
> puddle of oil under right side of engine. Not huge, but enough for concern.
> I checked, and it appeared as though the valve cover gasket was leaking.
> Unfortunately I did no have spares with me, as I usually do. Fortunately I
> was near my mechanic. I drove to his shop. I pulled the valve cover, and
> went to replace the gasket. I then noticed that the spring washer on the #2
> cylinder rocker broke. Again.
>
> I asked my mechanic to take a look, and we couldn't figure it out at first.
> Then he noticed that the end of the valve stem was concave where the rocker
> hits it. This was only on one stem-all the others are flat. So I am
thinking
> that the valve stem stretched due to overheating? And the rocker hammered
it
> concave?
>
> Any ideas what I'm doing to my engine here, or how to fix it?
>
> By the way, after the valve cover gasket replacement-the oil leak seems to
> have been solved.
.
> Thanks,
>
> -Kevin
>
> '65 kombi
> '69 single cab
> '71 sqbk
> Jamaica Plain, MA
--
Regards,

Nate Morse
Owner, ProVolks
Anacortes, WA
(360) 299-8860
Nate's AircooledTech
http://www.aircooledtech.com

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