Hi Grumpy, they reckon great minds think alike. Have done my little experimentand came up with something slightly different. I put it all back together and set valves at correct gap, turned motor over by hand a number of times and there was no opening of exhaust valve on compression stroke, but the rocker arm got tight as before. Done 3 compression checks,checking valve gap inbetween each try just incase something decided to move, and came up with 150 psi each time, were as when rockers pushrods etc were in original position i had 120 psi. Does this mean that all or some of these parts are worn out/no good or do we need to delve in deeper (to were i dont know). Could you please show me what you mean by the timing gear being chewed up by the oil pump.
