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Re: Made it home on 3 cyls at 17 MPG. After it cools of Posted by SWEDECAR [Email] ![]() ![]() ![]() In Reply to: Made it home on 3 cyls at 17 MPG. After it cools off,.., TonyJ ![]() ![]() |
It might have burned an exhaust valve.
A leak down test would reveal if the air is going out through exhaust or intake or into the crank case.
That would let you know if an exhaust-intake valve or piston/rings are bad.
Exhaust valves can sometimes burn if the engine is running too lean, especially when pulling a load.
A marginal spraying fuel injector can be enough to kill the valve.
Anders
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