Data:
3.2--->3.4 conversion in '84 Carrera
- JE Pistons, 95mm Mahle factory cylinders overbored 3 to 98mm. Supposedly Goetz oil rings supplied with the set which is what I used.
- Teflon valve seals on intake and exhaust valves.
- Ring gaps and orientations observed on assembly.
- Oil pump reused from old motor, spider gears in excellent shape
Engine is at 2000 miles, is consuming 20w50 at a rate of a little better than a half quart every 500 miles. Some oil observed on spark plugs and plug threads, does not look like there is 1 particular offending cylinder. Motor goes like nuts, 6,850 rpm no problem.
What is reasonable oil consumption? I think this is excessive and annoying, my old high mileage engine did not do this. Oil puffs inconsistently on startup. Oil is most definitely NOT overfilled and is run 1/2 way between dots on dipstick when hot.
If I do pull this back apart, what am I looking for?
My original rebuild pics here:
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