I don't buy that oval story. The whole idea is to keep the piston square in
the bore, so the rings seal. You oval out the bore, the rings are circular
-- the only way they can seal is to cock the piston, which can't happen
because there are 3 rings, not one.
'66 MGB GHN3L76149
If you're near Menlo Park, CA,
it's the primer red one with chrome wires
on 7/7/14 9:20 AM, Clayton Kirkwood at email@example.com wrote:
> Yes! Ok, I've had my 62 mga engine rebuilt 3 times by "experts". The current
> iteration seems solid - put a couple thousand miles on her. But she sips oil
> modestly. The guy who did the machine shop work for my 59 Land Rover told me
> that most machine shops and rebuilders machine the cylinder walls wrong.
> They make the cylinders round instead of slightly oval toward the bottom of
> the stroke which considers the pull and push rotation of the driveshaft and
> connector arm. Seems reasonable to me.
> So the question. Should I increase the viscosity of the oil to allow less
> oil burn, and/or, go to synthetic which won't burn off?
> Also by now, I'm figuring she has finished running in and plan to change
> "We live in the greatest nation in the history of the world," he pleaded. "I
> hope you'll join with me as we try to change it." Barrie Obama