Ford 460 motorhome running hot
Hello again everyone! Just wanted to check in after all the recent repairs with a new and exciting issue! Haha well kind of new. So the 460 engine in my 1988 ford E350 motorhome is running pretty...
Forum Discussion
Sorry to hear you’re still having issues. A few thoughts come to mind.
Check all eight plugs, they should look identical light gray/tan, not burned/melted.
While the plugs are out have somebody rock the crankshaft over top dead center and verify that it really is tdc.
Set timing by the procedure with spout jumper out. Verify normal response with spout in. Have an assistant work the throttle while you watch the marks with a timing light. The timing should be stable, not bouncing around. Gradual throttle up under no load should produce a large advance, a momentary goose to full throttle should ****** the timing.
My 93 460 has heat shields on the exhaust manifold, perhaps your yours were removed at some point.
Try running with thermostat removed. Not a problem this time of year and you can cover part of the radiator if it runs too cold.
Restricted fuel flow usually shows up as a misfire at full throttle and high rpm. It should run normal at moderate power.
What gas mileage are you getting?
Wow, is this a politically correct website, it won’t post the word ret@rd?
Check all eight plugs, they should look identical light gray/tan, not burned/melted.
While the plugs are out have somebody rock the crankshaft over top dead center and verify that it really is tdc.
Set timing by the procedure with spout jumper out. Verify normal response with spout in. Have an assistant work the throttle while you watch the marks with a timing light. The timing should be stable, not bouncing around. Gradual throttle up under no load should produce a large advance, a momentary goose to full throttle should ****** the timing.
My 93 460 has heat shields on the exhaust manifold, perhaps your yours were removed at some point.
Try running with thermostat removed. Not a problem this time of year and you can cover part of the radiator if it runs too cold.
Restricted fuel flow usually shows up as a misfire at full throttle and high rpm. It should run normal at moderate power.
What gas mileage are you getting?
Wow, is this a politically correct website, it won’t post the word ret@rd?
