The Ford Barn - View Single Post - Vacuum Brake 1932-1948 Ford

BUBBAS IGNITION · 02-18-2014, 11:00 AM

ALL early Fords should run the piston, leather,spring and adjustment nut no matter what system is used in the distributor.
They should have a slight drag especially during startup to help stablize the spark . Whether the vacuum is hooked up is a secondary discussion as its pretty hard to have a flathead ping or spark knock on todays fuel. If a ping is heard then it should be adjusted to help the tip in ping as needed.

Run the vacuum brake ! If not hooked up back off the adjustment to just have a slight drag on the retard wheel..

02-18-2014, 11:00 AM	#12
BUBBAS IGNITION Senior Member Join Date: May 2010 Location: SPEEDWAY INDIANA Posts: 4,148	Re: Vacuum Brake 1932-1948 Ford ALL early Fords should run the piston, leather,spring and adjustment nut no matter what system is used in the distributor. They should have a slight drag especially during startup to help stablize the spark . Whether the vacuum is hooked up is a secondary discussion as its pretty hard to have a flathead ping or spark knock on todays fuel. If a ping is heard then it should be adjusted to help the tip in ping as needed. Run the vacuum brake ! If not hooked up back off the adjustment to just have a slight drag on the retard wheel.. __________________ If it Makes Spark, we do it !!!! www.bubbasignition.com [email protected]