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C-85-12F Timing marks
Posted: Sun May 09, 2021 8:37 pm
by 6319
The timing marks on the crankshaft of my C85-12F indicate top dead center TC and have a 24/ and a /32 with two / / between them. These are obviously timing marks and likely 28 and 30 BTDC. What bothers me is that they aren't equally spaced out and one would think there would be 5 marks 24, 26,28,30,32 instead of 4. Anybody been there.
Re: C-85-12F Timing marks
Posted: Sun May 09, 2021 9:57 pm
by 2066
- IMG_2197 (2).JPG (159.88 KiB) Viewed 2628 times
...
this? First "mark" is 24, space is 25, next mark is 26...and so on(?).
Mac
Re: C-85-12F Timing marks
Posted: Sun May 09, 2021 10:10 pm
by 2066
Incidentally, here's a neat little timing indicator:
- TIMING INDICATOR # 12-21545.jpg (24.38 KiB) Viewed 2628 times
- IMG_9387.JPG (73.49 KiB) Viewed 2628 times
Mac
Re: C-85-12F Timing marks
Posted: Wed May 12, 2021 9:21 pm
by 1125
The marks start at 24. 2 degrees per mark ends up at 32. Watch timing carefully. If it is off, it can cause big problems. T O