Re: 1965 Seven S2
Posted: Sun May 24, 2020 12:56 pm
vstibbard wrote:Suggests either an air leak or leaning out..
Thanks Vaughn, more tweaking today. I have a colortune on the way so I can visualize if I can't sort it.
I'm interested in your thoughts on timing.
I'd been interpreting the notch between the 2 raised areas as TDC, but may be a good bit over-advanced as a result.
In re-reading the 7 manual, it suggests this mark is 10 degrees BTDC, which would be correct for the 105E and that the notch in the pulley is be advanced a further 1/8 inch for a cosworth 116E. Timing specs in the manual are 105E-10btdc, Cosworth 116E-11btdc, so presumably 1/8" is 1 degree. This suggests to me that with the Cosworth I should be just a smidge outside left of the raised area for static timing (assuming the notch itself is 10btdc). What is your opinion?