Re: 1941 Packard 120 Overheating

Posted by TxGoat On 2023/6/27 9:01:41

Don't overlook the easy stuff:

Check fan belt tension and manifold heat valve function, and make sure the radiator core is free of bugs, lint, grass seeds, dust, etc. They can embed in the air spaces of the core and be hard to see, yet still restrict air flow.

Ignition timing can affect cooling efficiency, and an inoperative distributor vacuum advance unit can contribute to overheating. The centrifugal advance unit can also malfunction or stick.

Be sure brakes are not dragging and that the tire pressure is adequate.