[Healeys] excess oil consumption

[Keith Mott]

Unless the rocker shaft is worn, oil should just barely seep out around the
rockers. It would be really hard to get to the vent tube.  With a worn
rocker shaft, oil could squirt high enough to get into the tube, but I
think you'd see blue smoke.

If you're not seeing blue smoke, I think I'd be looking for leaks.

Keith

On Tue, Jul 7, 2015 at 5:55 PM, <warthodson at aol.com> wrote:

> A friend ask me to post the following question about excess oil
> consumption on this forum to see if anyone has any suggestions.
> I know the engine has been professionally rebuilt a few years ago & the
> compression & leak down tests recently looked "normal". No oil leaks.
> Thanks,
> Gary Hodson
>
> I had a brief conversation with my mechanic the other day and in the next
> couple of weeks he will do a complete diagnosis on my Healey to try to
> identify why I have had so much oil consumption.  FYI, I just emptied the 6
> th quart of oil into the engine yesterday – and that is over 4,000
> miles.  It is better than before the recent ring job, but nonetheless, is
> not acceptable to me.
>
> Mechanic thinks the oil loss might be due to combustion of the oil from
> the back air cleaner that is plumbed with the valve cover.  He thinks the
> air cleaner I have on it now is somehow creating a vacuum pulling oil from
> the valve cover and injecting it back into the piston and is actually
> burning the oil off very efficiently.  I still don’t have any signs of
> leaks beneath the car nor any smoke from the tailpipe.  Quite possibly the
> current Cooper air cleaners are too small and are creating this vacuum.
> The Cooper air cleaners replaced some other chrome air cleaners the
> original owner had on the car – I don’t know if it was original equipment.
>
> Will you do me a favor and see if anyone else had a similar issue with oil
> consumption to identify a “solution” that worked for them?  Maybe there are
> other thoughts that we should ask my mechanic to examine as well.
>
>
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