misalligned timing belt
Kneale Brownson
kneale at coslink.net
Sat Dec 30 05:46:36 EST 2006
Is it possible the idler pulley isn't fully seated on its boss on the front
engine cover? If it's cocked slightly it might move the belt out of
alignment. Can't imagine the extra gasket sealant is thick enough to do
that. Maybe you should spread some epoxy body filler around the water pump
opening to fill the pitting and then flat file that smooth??? I once had a
starter making a squeal like you describe. Did it for maybe 10k miles
before it died. Bad bushing/bearing in the starter, according to the guy
who rebuilt it for me.
At 12:30 AM 12/30/2006 -0500, kbogach wrote:
>Hi Listers,
>
>I would appreciate if someone had the following problem and/or know at
>least one possible reason for it:
>
>On MC2 engine, after timing belt job (note: new roller and water pump)
>the timing belt (right one, for MC2, aka super torque) tends to
>position partially off the cam (less) and WP (more) sprockets. About
>1/4 of belt's width is hanging off the WP's sprocket. After manually
>centering the belt on both sprockets, spinning the engine makes the belt
>go off the sprocket's centers. My guess is:
>
>a) misaligned roller inside the cast housing(boss) (hard to imagine
>that it can go in misaligned, it is so tight fitting);
>b) misaligned WP due to dislocated gasket;
>
>Any comments will be greatly appreciated.
>Anyone machined WP's gasket groove for thicker gasket? How much it can
>cost in a machine shop? The surface on block is pitted and I have to
>use hight temp silicon gasket goop. Last time it held 2 years only.
>
>
>Also, last several month 200tq (MC2) gives short loud squeal when
>started. Something like foam can do if rubbed against window pain.
>All belts are new and and tight. One of the shaft seals? Oh... no...
More information about the quattro
mailing list