Posted by Steve@Advance on September 16, 2015 at 20:14:48 from (107.203.134.67):
In Reply to: Farmall 706 help posted by Kyledhenry62 on September 16, 2015 at 15:09:32:
So is it actually getting "hot", as in boiling out the overflow?
Or is this a problem that arises as it comes up to temp under load?
If it's actually getting hot, as in too hot to run, that is some serious overheating! If it's been run so hot it looses power, chances are there is a head gasket problem, possibly other problems with the engine and cooling system.
But if it's just having a problem under load, that could be fuel related or ignition. Need to catch it when the problem occurs. Try partial choking, see if that helps. If so, there is a fuel problem. Could be the main jet needs adjusting richer, fuel restriction, vapor lock (fuel line too close to exhaust), vacuum leak.
Ignition problems could be points out of adjustment, worn distributor, spark advance not working, weak coil, wrong coil/resistor combo, weak condenser, timing too fast (spark knock and detonation), retarded ignition (loss of power, overheated exhaust causing vapor lock).
Might also check the valve lash. If they are too tight, the heat will cause loss of compression and power.
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