The Ford Barn

Kurt in NJ · 08-09-2024, 09:01 AM

In a 1933 tune up book I found this model B timing setting paragraph, interesting that there are 2 settings depending on the gasoline being used.

Timing: Standard setting 15° (standard gasolines) or 23- (Ethyl gasolines) before top dead center. To set timing, first center spark control arm by loosening adjustment screw and moving arm so that center line on control arm scale is directly under center of adjustment screw, tighten screw. Then take out timing pin screwed in front face of timing gear case (over camshaft gear), reverse pin in hole. With No. I piston on compression stroke turn engine over slowly and press on pin until pin engages hole in front face of camshaft gear (this hole is 9½ degrees on the camshaft corresponding to 19 degrees on the crankshaft before the top dead center position). Loosen lock screw in center of breaker cam, carefully locate cam so that contacts are beginning to open, tighten locking screw.
Then loosen adjust-
ment screw on spark control arm, move arm 4 degrees to right (15 degree setting for cars using standard gasoline) or 4 degrees to left (23 degree setting for cars using Ethyl gasoline), tighten adjustment screw. Remove timing pin and replace in running position before attempting to operate car.

08-09-2024, 09:01 AM	#1
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,556	Model B timing In a 1933 tune up book I found this model B timing setting paragraph, interesting that there are 2 settings depending on the gasoline being used. Timing: Standard setting 15° (standard gasolines) or 23- (Ethyl gasolines) before top dead center. To set timing, first center spark control arm by loosening adjustment screw and moving arm so that center line on control arm scale is directly under center of adjustment screw, tighten screw. Then take out timing pin screwed in front face of timing gear case (over camshaft gear), reverse pin in hole. With No. I piston on compression stroke turn engine over slowly and press on pin until pin engages hole in front face of camshaft gear (this hole is 9½ degrees on the camshaft corresponding to 19 degrees on the crankshaft before the top dead center position). Loosen lock screw in center of breaker cam, carefully locate cam so that contacts are beginning to open, tighten locking screw. Then loosen adjust- ment screw on spark control arm, move arm 4 degrees to right (15 degree setting for cars using standard gasoline) or 4 degrees to left (23 degree setting for cars using Ethyl gasoline), tighten adjustment screw. Remove timing pin and replace in running position before attempting to operate car.