Picture the scene ;
Saturday night just putting the finushing touches to our new set of webber 45's on our astra 16v track car looking forward to a nice knockhill outing on sunday.
just got car set up after some blood sweat and beers ,and it was all looking good when a nice mettallic clunking could just about be made out.
anyway enough of the crap it turns out the crank pulley has sheared the woodruff key and the valve timing has jumped 180 degrees before the thing jammed . all 8 exhaust valves bent flat with the pistons and absolutly no go.
sunday was spent sacraficing the old gm head with a lump hammer and replacing it with a nice coscast item. the sodium in the valves does actually burn in contact with water(and a blowtorch)lmao
anyway just a note to point out you can take all the precautions in the wolrd to stop engine failure and something still catches you out
actually nothing to do with cam pulley's more like crank!