Rodney Orr writes:
>Martin,
>Apparently, an unprimed pump - especially one where it is not immersed in
>oil in the sump - can result in trashed bearings in very short order.
>'Practical Classics' magazine published 101 top tips a few years back
(Dec.
>'93?) and said to prime an new oil pump by packing it with petroleum
jelly
>before installing. That ensures the pump will pick up oil from the sump
as
>soon as the engine starts. The jelly quickly dissolves as oil begins to
>circulate. I used this trick a few years ago and it seemed to have done
>the trick.
>Rod. '70 TR6 CC55899L
I have used STP and more recently "Engine Assembly Grease" I also
spin the engine with the starter (plugs out, of course) until I get
oil pressure. A friend of mine and I tried to prime the oil pump
on an MGB with the starter. We ran down two batteries without
success. Finally we drained the oil, dropped the pan, pulled the
pump, primed it, reinstalled (reverse of the above) and Voila! Oil
pressure right away.
A dry oil pump doesn"t pump very well especially at 100 RPM (or
whatever speed the starter can achieve)
Dave '71 TR6, '74 TR6, '78 TR7
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