240gl noise in engine

[networker]

I am having a noise coming from what seems to be the back of the top of the
engine. my dad said it could be the tappets.
Anyone got an idea.
it happens mainly when I accelerate.

Thanks
Mitch

 

[vertuas]

what kind of noise are you experiencing?

tappets needing adjustment sound like a rattle noise

 

[Michael Cerkowski]

I am having a noise coming from what seems to be the back of the top of the
engine. my dad said it could be the tappets.
Anyone got an idea.
it happens mainly when I accelerate.

Thanks
Mitch

It could be just a leaking exhaust manifold gasket- they tend to sound
remarkably
like noisy valves. It could also be detonation or 'pinging'. Have a good shop
take
a look at it. I'm inclined to say it isn't loose valves, because they would be
noisy
all the time.


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http://www.albany.net/~mjc1/index.html

 

[Mike F]

"Michael Cerkowski

It could be just a leaking exhaust manifold gasket- they tend to sound
remarkably
like noisy valves. It could also be detonation or 'pinging'. Have a good shop
take
a look at it. I'm inclined to say it isn't loose valves, because they would be
noisy
all the time.

Yes, I'd suspect the exhaust manifold gaskets. Tappets don't change
sound with engine load, the gaskets do.