[V8] engine rattle

[dsaad at icehouse.net]

Many of us have had this happen right after a t-belt job. It seems the bearing
for the oil pump does not like to play nice with a new timing belt for some
reason. The usual cure is to replace this bearing - which of course means
removing the t-belt again. It is not clear that the old bearing is really bad -
it just gets noisy.

The noise also radiates all over the motor - just to make diagnosos more fun.

You might also have a look at the damper assembly - including the friction pad.

Dave

Quoting Peter Sikkila <p.sikkila2 at comcast.net>:

> I too have this rattle from the same area of my 93. I bought it from the 2nd
> owner with 110k and the original timing components. Drove it home and parked
> it until I could change the belt and all related parts. I never heard the
> rattle before I replaced all of the timing components,but it was "new" 93. I
> have 2 90's & a 91 parts donner so I was just drooling over the 93 and not
> really listening to everything. Now, after the belt change there is this
> distinct noise from the drivers side head. It is not there when the engine is
> cold. Once the engine comes up to temp. you can here the "rattle". I went
> back in and completely tore it all down & rechecked everything including the
> oil pump bearing.I couldn't find anything that was wrong. Put it all back
> together, runs great, but the rattle is still there when it's up to temp. I
> can buy into the lifter theory,but to me it really doesn't sound like one
> that is bleeding down. The "rattle" seems to come from the timing belt teeth
> meeting the
> cam gear. I too would like to find the reason for the 'rattle!
>
> Regards
> Peter
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