The Ford Barn - View Single Post - Finding TDC for leak-down test

Sunnybrook Farm · 04-02-2020, 10:54 AM

I just tore an old motor down last month and set it to top dead center on #1 by the timing pin while I had the head off and the piston wasn't at the top of the stroke. Come to find out that someone 70 years or so ago had put a timing gear one tooth off. Lots of carbon in the combustion areas so they probably weren't very happy and parked the car, it hasn't been run in ages by the looks of it. Anyway, I guess you can't assume but so much sometimes.

04-02-2020, 10:54 AM	#17
Sunnybrook Farm Senior Member Join Date: Oct 2015 Location: Virginia Posts: 409	Re: Finding TDC for leak-down test I just tore an old motor down last month and set it to top dead center on #1 by the timing pin while I had the head off and the piston wasn't at the top of the stroke. Come to find out that someone 70 years or so ago had put a timing gear one tooth off. Lots of carbon in the combustion areas so they probably weren't very happy and parked the car, it hasn't been run in ages by the looks of it. Anyway, I guess you can't assume but so much sometimes.