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W11x chassis cars / Re: W111 230s Low compression after engine rebuild.x
« Last post by Hassan on Today at 06:13:59 »Ok so I’ve the engine to idle around 900rpm. Waiting on. Head gasket and a leak down tester I’ve ordered online . Yes compression gauge is fine as I cross checked with another one I have.
Since I’ve been running it on the stand for the last week or so the compression has increased slightly by 5psi (now at 115 psi) across all cylinders and she has started to idle well ,vacuum gauge needle stay steady at 13 inches of mercury (i know you need 14 min) . Could it be that the new rings and valves are bedding in?
I had blocked the pipe on the intake manifold in between the carburettors to tune the carbs they seem to be almost there my question Is should I run the engine while it’s blocked or open ended.? Opening it increased the vacuum reading to 14-15 .
Regards
Since I’ve been running it on the stand for the last week or so the compression has increased slightly by 5psi (now at 115 psi) across all cylinders and she has started to idle well ,vacuum gauge needle stay steady at 13 inches of mercury (i know you need 14 min) . Could it be that the new rings and valves are bedding in?
I had blocked the pipe on the intake manifold in between the carburettors to tune the carbs they seem to be almost there my question Is should I run the engine while it’s blocked or open ended.? Opening it increased the vacuum reading to 14-15 .
Regards