14741Re: [IH CUB LoBoy Series] Still Need Help with 185
- May 4, 2009As in any diagnosis, accurate and complete information is needed!!! Also test equipment needs to be in working order and the person doing the testing needs to know how the equipment works. A compression gauge has a schrader valve (like a tire valve) that keeps the pressure stored in the gauge until the operator releases it. A low pressure reading, as stated by Mike could be rings or valve train problem. A wet test will futher determine what is the cause for low compression. A low reading on two cylinders adjacent to each other usually indicates a blown head gasket between the two cylinders. Pressure in the cooling system while cranking and/or coolant in the cylinder is usually a blown head gasket. Rich
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