Question about Isuzu Trooper
I AM A DEALER TRAINED ISUZU TECH AND I WILL TELL U THIS, THE PROBLEM U HAVE IS THE HEAD GASKET, THAT SEALER U PUT IN WILL WORK FOR A VERY SHORT TIME AND ALTHOUGH IT HAS STOPPED THE MAJORITY OF THE COOLANT ENTERING THE CYLINDER IT HAS NOT ELIMINATED IT, THE OIL PROBLEM IS CAUSED BY THE RINGS/CYLINDER WALL BEING WASHED OUT BY THE LARGE AMOUNT OF COOLANT GETTING INTO THE HOT COMBUSTION CHAMBER, YOU NEED TO CHECK THE COMPRESSION ON ALL FOUR, THERE SHOULD NOT BE MORE THAN A 5% DIFFERENCE BETWEEN HIGHEST AND LOWEST READING ON ANY OF THE 4 CYLINDERS, SO IF THE HIGHEST COMPRESSION READS 150 PSI LETS SAY THEN THE LOWEST MUST NOT BE LOWER THAN 142 PSI, AFTER THAT THE ENGINE WILL BEGIN TO MISS AND RUN ROUGH AT IDLE, AT A 10% LOSS YOU WILL HAVE A VERY PRONOUNCED MISS-FIRE. RUN THE COMPRESSION TEST, DO IT TWICE TO CONFIRM THE READINGS ARE ACCURATE AND THEN REPAIR AS NECESSARY, HEAD GASKET RINGS ECT. ONE LAST NOTE A LEAKING HEAD GASKET WILL NOT HURT THE VALVE SEALS AND THE SEALS ARE VERY UNLIKELY THE SOURCE OF THAT MUCH OIL ENTERING THE CYLINDER.
Posted on Jul 12, 2009
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Posted on Jan 02, 2017
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