Fitz
Senior member
- Location
- Cheshire UK
Hello again - more SF questions
According to the green book, the oil pump pinion should be marked to enable the ignition timing (points at the minute) to be set correctly as the shaft acts as a driver to the points - so far so good. It suggests that the mark on the pinion should be at 9 o-clock or 3 o-clock positions to enable the drive peg to locate through the oil pump housing and oil pump gear - on my engine this works if you use the etched arrow, not the dot on the pinion
If you have a look at the attached images, my upper crank case has a dot mark and the pinion has an arrow etched into it, to locate the shaft, gear and housing you align the arrow and crankcase dot, so I did that, without the crankshaft gear fitted
There is a second mark on the pinion - a dot, so once I fitted the oil pump drive, I rotated the pinion until the dot aligned with the crank pinion - this is where things get difficult
There are no clear marks on the crank gear, only chisel marks where some ham fisted bugger has walloped the nut tab washer so I can only guess where the alignment should happen, but do I align teh arrow or the dot on the pinion
My thoughts to ensure I have everything set up correctly before I tighten anything is :-
1) Have the engine at TDC on left cylinder
2) Rotate the oil pump drive gear until the dot aligns roughly where the crank gear mark should be
3) Tighten the crank gear
Your guidance is appreciated
According to the green book, the oil pump pinion should be marked to enable the ignition timing (points at the minute) to be set correctly as the shaft acts as a driver to the points - so far so good. It suggests that the mark on the pinion should be at 9 o-clock or 3 o-clock positions to enable the drive peg to locate through the oil pump housing and oil pump gear - on my engine this works if you use the etched arrow, not the dot on the pinion
If you have a look at the attached images, my upper crank case has a dot mark and the pinion has an arrow etched into it, to locate the shaft, gear and housing you align the arrow and crankcase dot, so I did that, without the crankshaft gear fitted
There is a second mark on the pinion - a dot, so once I fitted the oil pump drive, I rotated the pinion until the dot aligned with the crank pinion - this is where things get difficult
There are no clear marks on the crank gear, only chisel marks where some ham fisted bugger has walloped the nut tab washer so I can only guess where the alignment should happen, but do I align teh arrow or the dot on the pinion
My thoughts to ensure I have everything set up correctly before I tighten anything is :-
1) Have the engine at TDC on left cylinder
2) Rotate the oil pump drive gear until the dot aligns roughly where the crank gear mark should be
3) Tighten the crank gear
Your guidance is appreciated
