[Vwdiesel] Cam broke D-Westy
LBaird119 at aol.com
LBaird119 at aol.com
Mon Sep 23 19:16:30 EDT 2002
> Be careful when locating a replacement cam. Diesel cams are different for
> mechanical and hydraulic lifter heads. The dealer told me this. Not sure
how,
> though. The change occurred beginning of 1986 model year.
>
Hydraulic cams typically have a faster "ramp" on the opening side to get
a quick plunge on the hydraulic lifter in order to pump it up for each stroke.
Admittedly the non hydraulics have an awfully steep ramp to start with!
I don't see how one can break a cam and not have pistons pushing
valves to do it. I've seen several heads that proved they were indeed
interference! Most had two to 7 bent valves. One broke the cam and
bent about 5 valves. Nearly all valves that bend will mushroom the
lifter bucket as well. I've yet to see a piston damaged. A little
impression
from the meeting, but still reusable.
Loren
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