[Vwdiesel] Timing 101 question please
82 Diesel Westy
dieselwesty at yahoo.com
Mon Mar 22 14:16:30 EST 2004
Thanks Loren, I am felling a "little" smarter now and
the light bulb has finally gone on for setting diesel
timing. It's not rocket scientist work.
Dead Diesel Westy
--- LBaird119 at aol.com wrote:
> 1. Is it possible for a motor to run 500-1000 miles
> with valve contact, assuming hydraulic valves are
> lessening the impact on valve stem and cam?
> If it was just tapping the piston then I'd say it
> likely could.
> > Or, could the valves have been hitting all along,
> > there were 2 head gaskets on this motor, to allow
> > additional clearance? thanks Overland, your the
> Makes me wonder if the valve stem length was ever
> ground down
> to the correct length (protrusion length). :(
> > 2. If the timing was advanced above spec, would
> > intake or exhaust valves make contact with
> Nope, simply rotating the pump only changes the
> instatnt the fuel
> goes in. That won't make a change in when the
> piston is up and the
> valves are down.
> > 3. Does rotating the pump to set timing stroke
> > only controls the point at which fuel is injected
> > TDC piston stroke but machanically moves cam as
> Sometimes the cam will fudge a little but it
> really doesn't move it
> as all you do is rotate the pump around it's shaft.
> The cogged belt
> should stay still, keeping the relationship of the
> cam, pump and crank
> all the same.
> Just because the cam bolt was tight doesn't mean
> the belt couldn't have
> jumped a tooth or was set wrong to start with. : O
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> Vwdiesel at vwfans.com
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