tapping sound
 

I've just replaced the coil pack and spark plugs on my vtr, not long after, when I started the car up there was a strange knocking sound coming from the top of the engine, when I rev the car slightly it seems to get quicker as the revs build up and slows down as the revs drop....
Any ideas guys? Cheers. Ado.

Have you over- tightened the spark plugs?

Did you drop something underneath the coil pack

Or even in the cylinder?

Tappets may need adjusting,have you also got plenty of oil?

Check engine oil i would say,just to be sure.

Did you check the gap on the plugs when replacing them ?

tappets properly,

In 7yrs on sax-p that has to be the daftest reply i've ever heard.:fcuk:

I had the same problem after removing rocker to replace gasket, tappet spacing needs adjusting

Yeah I removed my clicking battery. Those things are a right bugger...

Honestly some of the replies here are retarded. A loose spark plug can make a tapping noise, so can Tappets but why would they be set wrong if they haven't been touched?


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Could be a woodpecker has decided to overwinter in your engine compartment. ;););)

check engine oil like other have said, tappets could be the cause or even pre detonation?