The Ford Barn - View Single Post - 276 flathead test drive big improvement.........but?

GEOFFNZ · 06-04-2014, 02:25 AM

Hi. If you have TDC for no.1 marked on your pully and a pointer you can work out degrees on pulley diameter.For example a 4 inch pulley gives a circumference of 121/2 inches (4x31/7) which is 360 degrees so an inch of pulley circumference would be 29 degrees approx which would give you something to go on. Cheers.

06-04-2014, 02:25 AM	#8
GEOFFNZ Senior Member Join Date: Jun 2010 Location: Oxford New Zealand Posts: 177	Re: 276 flathead test drive big improvement.........but? Hi. If you have TDC for no.1 marked on your pully and a pointer you can work out degrees on pulley diameter.For example a 4 inch pulley gives a circumference of 121/2 inches (4x31/7) which is 360 degrees so an inch of pulley circumference would be 29 degrees approx which would give you something to go on. Cheers.