misalligned timing belt
kbogach at comcast.net
Sat Dec 30 23:05:38 EST 2006
Kneale, it is not sealant but o-ring itself out of the groove what is my
suspicion. Thank you for pointer on the starter. But you are right:
cocked roller is more probable reason.
Kneale Brownson wrote:
> 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...
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