My TS car was having issues until we ran a ground cable up to the starter itself. Just was not happy any other way. Likely the 60MM cam huge spring load and babbit bearings are all partly the cause. Ive never had to do this before but this engine is just not happy any other way

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"