1937 115C slow crank when engine warm - starter, solenoid?

Posted by Jake Powel On 2018/7/6 14:50:38

Persistent problem on my 115C: with battery fully charged and easy starting when engine cold, I notice very slow cranking when engine is fully warmed up. I am not sure how to read this symptom - is it the starter solenoid not functioning well when hot, the starter itself, or does it just take more juice to turn over a hot engine? Is there a way to diagnose the issue short of buying replacement parts until it goes away?