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Feb 21, 2014 4:05 pm
Feb 21, 2014 4:05 pm
Subject: Re: 2 litre cylinder compression question
Mike, thanks for your repsonse and it's good to hear that these old machines are still capable of high mileages. I have ordered a leak down tester to pressurise the cylinders in the hope that the escaping air might point to where the problem lies. At worst I suppose it could be a cracked block and at best a question of the valves not fully seating through poor valve clearances with a number of other causes in between. I was surprised how rough the engine ran as I suspect these run very nicely when set up correctly. It certainly starts well. I should add that the compression test was run cold but when I checked the 60psi cylinder after a run it was down to 50 psi which I would imagine is barely enough to cause a meaningful explosion in the cylinder.
Mike, thanks for your repsonse and it's good to hear that these old machines are still capable of high mileages. I have ordered a leak down tester to pressurise the cylinders in the hope that the escaping air might point to where the problem lies. At worst I suppose it could be a cracked block and at best a question of the valves not fully seating through poor valve clearances with a number of other causes in between. I was surprised how rough the engine ran as I suspect these run very nicely when set up correctly. It certainly starts well. I should add that the compression test was run cold but when I checked the 60psi cylinder after a run it was down to 50 psi which I would imagine is barely enough to cause a meaningful explosion in the cylinder.