[gjkrv8]

Prize goes to Towmaster :-)

I was listening and looking under the hood this morning and it sounded like a clicking noise from the back of the engine on one side.

put my finger down to feel the plug lead and got a nastly zap.

All other leads dont give a zap.

It is not making good contact I think as those stupid GM Spark plug heat sheilds are rubbing on the headers on this cylinder and vibrating the plug lead loose. I checked yesterday but not while the engine was running and this one is at the back and hard to get to and felt fine yesterday,

I must admit this particular cylinder the header pipe is very close to the plug shield making for a tight fit. In fact to get the plug out on this one I have to unbolt the header on this side.

I still think there are problems as I still get a jolt from where the lead goes into the plug rubber cover etc. The others dont give me a jolt.

I am going to change the led and use those flexible heat shields to see if I get better contact.

But it goes like it used to now. Should go better if I fix this lead etc.

Thanks for your suggestions - they all helped.

I still reckon I will take it to Erol for a once over tune etc as my engine is second hand (done 50,000 ks) and I dont know how "stock" the tune is etc.

Rgds

Gregg