Grey Motor Ign Timing
Grey Motor Ignition Timing:See also Firing Order
Location of the Timing Mark:
Submitted by T on Wed, 18/04/2007 - 07:53. The timing mark is on the flywheel near the Distributor under a small cover. The mark is a ball bearing mounted in the flywheel that lines up with a mark in the tinplate. You will have to line up the rotor button to the number one plug lead in the distributor when the no 1 piston is at TDC on the firing stroke. You may need to remove the rocker cover and watch the no 1 cyl valves to identify the firing stroke TDC. Both valves will be closed. On the exhaust stroke TDC, both valves will be on the rock (exhaust closing inlet opening). T
Line the Ball up With the Mark:
Submitted by T on Wed, 18/04/2007 - 09:36. The correct timing occurs when the ball lines up with the mark. This gives 7 degrees of static advance.
The UC Mark:
The UC mark (Upper Dead Centre) lines up with TDC. T Sherro's Shed