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hydraulic tappets
Posted: Thu Sep 18, 2008 11:16 am
by bodger
are they easy to take part and check and clean ?
i seem to have a strange noise , but it gets better when it warms up
it almost sounds like "pinking" , no noise on tick over , but as soon as i accelerate it comes in ...like a clatter for won't of a better word
i was thinking it might be a slow to fill tappet ??
but any ideas welcome please ..
only since i have done the piston change to High comp now 10.5:1
i have checked compression to see if it was a head gasket ...that's ok
i have checked for combution gases ( blue liquid) ...that's ok
i have checked the plugs , all the same colour ...so thats ok
Re: hydraulic tappets
Posted: Thu Sep 18, 2008 11:45 am
by sidecar
bodger wrote:are they easy to take part and check and clean ?
i seem to have a strange noise , but it gets better when it warms up
it almost sounds like "pinking" , no noise on tick over , but as soon as i accelerate it comes in ...like a clatter for won't of a better word
i was thinking it might be a slow to fill tappet ??
but any ideas welcome please ..
only since i have done the piston change to High comp now 10.5:1
i have checked compression to see if it was a head gasket ...that's ok
i have checked for combution gases ( blue liquid) ...that's ok
i have checked the plugs , all the same colour ...so thats ok
Not sure if the noise will be your lifters but yes they are easy to take apart. I used an allen bolt and a vice arrangement to compress the inner cup enough to allow me to flick out the spring clip. Once the pressure of the vice was released the inner parts just drop out.
If the lifter has no oil in it then I think that you can just push the inner cup down with a screw driver to release the clip.
Pete
Posted: Thu Sep 18, 2008 11:57 am
by bodger
thankyou Pete , it's a very strange noise ..as it loads up it sounds for all the world like " pinking " got me well puzzled
Posted: Thu Sep 18, 2008 6:17 pm
by CastleMGBV8
Keith,
If your not sure it isn't pinking why not back of the timing a bit to see if that cures it, alot simpler than stripping the manifold off to get at the lifters.
Have you checked what initial advance you have?
Kevin
Posted: Thu Sep 18, 2008 6:40 pm
by bodger
Hi kevin , as far as i can remember it's set at about 8 BTDC
Posted: Thu Sep 18, 2008 8:43 pm
by RoverP6B
Certainly sounds like pinking.
Maybe a batch of "bad" fuel?
Ron.
Posted: Fri Sep 19, 2008 7:01 am
by ChrisJC
I would mark the distributor, then turn it back to see if that makes any difference.
Chris.
Posted: Fri Sep 19, 2008 12:32 pm
by bodger
anyone near me fancy having a listen ??
4 ear's are better than 2