Replacement camshafts for Griff 500

[turboslippers]

Hi, should be a straightforward answer here. A colleague is fettling his dad's unused 1995 Griff 500 and it's quite tappity. Having looked he thinks it needs a new set of cams so where is the best place to source these from? Don't think he wants different lift/duration, just standard spec.

regards
Ben

[carsy]

Tvr powers 885 cam is what you will want.

http://www.powersperformance.co.uk

[steve-V8s]

Probably best to suggest he only buys one.

If he buys “a pair of cams” he may find it a struggle fitting both of them.

[gavgavgav]

Its best to check a few things if you are hearing tappet sounds before assuming the cam, checking the tappet pads is easy enough (they fall off, I've lost 2 so far), can even be the exhaust gasket.

[simonwedge]

Definately worth changing the oil before assuming the cam is knackered, use some quality thickish oil (20/50) and see what it sounds like.

If it's still tappity try this - http://www.halfords.com/motoring/engine-oils-fluid... . I'm not normally a believer of magic solutions in bottles but this stuff really works. Completely quietened down my lifters in my previous V8 wedge.

If it's stall tappity after both of the above, cam and/or lifters are very worn and need replacing, but at least you tried!

[waggy]

My cam went,, best way of checking is remove cam covers and turn engine over by hand, watch all the rockers are moving the same amount. My exhaust on cyl 7 didnt move at all , took cam out and it was completely rounded off on that valve.

Common problem on grff 500, either lack of oil or stuck cam follower. My car was laid up for a few years and that was most likely the reason..

Good luck,,

Alex

[QBee]

Not disagreeing with any of the above, but the exhaust manifold gaskets have been mentioned, I have had similar noises from my car twice, and both times it has been that, not the cam/tappets and it costs nothing to eliminate.

Get a piece of thin rubber or plastic tube about 2-3 feet in length, start the car, stick one end in your ear (the tube, not the car!), and point the other end of the tube close to the exhaust manifold gaskets. If one is leaking, it will sound unexpectedly loud.
You can do the same test with a feather on the end of a stick. Stick the feather in your ear.......

The other place in the exhaust that is prone to leak, and make a tappety noise, is where the 4 pipes join into one in the exhaust manifold itself