shizzl Posted September 7, 2012 Share Posted September 7, 2012 i use a leak down tester...get the piston to tdc and test it,then the same for the next... take the dip stick out,remove the intake pipe/airbox/rocker cover.. if theres leaks you can hear the air pissing out with a hose to your ear or a stethascope....do this when its been running... air from the exhaust- exhaust valve leaking air from the carb/intak- intake valve leaking air from the dip stick tube- rings fucked also check the perimeter of the head gasket and round the rocker areas.... cracks in the head can also cause shit like that Quote Link to comment Share on other sites More sharing options...
keltik Posted September 7, 2012 Share Posted September 7, 2012 From my own experience; Jaguar - Nakkered valve stem seals. - Starts fine - Wont smoke at idle cold or hot - Smokes like a James Bond special after coasting down the Ohope hill in 3rd. - Compression is acceptable, maybe even good! Legacy (old engine) - Worn rings - Blows a bit of blue on startup - Smokes lightly when idling cold, clears up when at hot idle - Smoked massively when getting the revs up past 3,000. - Compression was real bad on some cylinders and getting worse on others. Quote Link to comment Share on other sites More sharing options...
coldturkey Posted September 7, 2012 Share Posted September 7, 2012 Just replace valve seals and go from there? Quote Link to comment Share on other sites More sharing options...
QCADTA Posted September 7, 2012 Share Posted September 7, 2012 I just chucked a silvertop back together, if you do rebuild this site is very helpful http://locost7.info/mirror/4age_blacktop.php Quote Link to comment Share on other sites More sharing options...
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