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I have a 2000 Spider with an engine rebuilt some four years and 15000 miles ago. Recently, at the Weber Concessionaires I had the car on the rolling road to get the engine performnce back to what it was when I rebuilt it. It was discovered that there was a 70% cylinder leakage from no.1 cylinder. You could hear the air escaping through the carburettor. I removed the head and had it checked and there was a burnt mark on the seating face of no.1 inlet valve, this was refaced (with all the valves and seats) guides checked, buckets checked clearances checked and reassembled. I repeated the test yesterday and still 70% leakage but no noise of air escaping through the carb. This time I could hear escaping air in the chain cover i.e. from the sump. I sqirted oil into the combustion chamber to seal round the rings and retested. The same 70%!
Not in the head now, not rings, new head gasket....what's left? Tick over is still not as smooth as it should be but when running at over 2000 revs its fine. Any ideas before I strip the engine again?
Not in the head now, not rings, new head gasket....what's left? Tick over is still not as smooth as it should be but when running at over 2000 revs its fine. Any ideas before I strip the engine again?