| Mercury Engine >> BURNED PISTON OR BROKEN RING LANDS |
Burned Pistons Or Broken Ring Lands On
Ford 1.6L (Except H.O.) Engines
Burned pistons or broken ring lands in 1981-82 Ford Escort and
1981-82 Lincoln-Mercury Lynx 1.6L (except H.O.) engines can be
the result of detonation caused by operating the engine with
insufficient coolant.
In these cases it is important to inspect the entire cooling
system before releasing the vehicle for operation.
While the engine is disassembled, check the cylinder head for
cracks and the head gasket surface of the cylinder block for
metal damage caused by engine overheating.
Inspect the gasket surface of the head for warpage, using a
straightedge. If the head is warped, do not machine more than
.010 (.254mm) from the surface.
After reassembly, pressurize the cooling system and check for
leaks at all hose connections, the radiator and heater cores,
heater cross-over tube, water pump, and thermostat housing.
In addition check that the electric cooling fan is operating
properly and that the timing is set at specifications.
The AERA Technical Committee
February 1984 - SB 109
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