Reply To: Valve clearance, camshaft, camshaft tensioner – a problem or a serious fault?
The availability of engine parts (used) is not that bad, but the price is often staggering… Both cylinders with pistons and rings approx. 162Â pounds.
I will be able to unscrew the remaining spark plug thread, I have special ‘screw extractors’, but I am more concerned that any filings have gotten onto the piston and that will be a problem…
And now my question arises, what to invest in?
If the compression is so poor on a warm engine, should I buy used pistons, rings and cylinders (they are available separately) blindly?
Or maybe it would be more profitable to recondition the current cylinders (sleeving)?
There is also the issue of this cyclical metallic knocking. Can someone tell me what the potential cause might be? Even in bullet points, so that I can check everything is OK one by one?
Personally, I’m starting to suspect that the spring on the valve tappet has lost its effectiveness or broken, and the valve is knocking against the glass or the piston?
Should I take everything apart first and then look for the causes?
I don’t know whether to hire someone to do the job or continue doing it myself…
Regarding the spark plug I just bought it online, so I do not know exactly from were it is…