Bill Page wrote:
> Engine is mounted. With tail up to horizontal oil pressure to 65 psi in
> about 5 rev., then immediately dropped to 0. With tail down 0 oil
pressure.
> Oil is full level. Oil cooler is dry. This conversion has case
mounted oil
> filter.
Sounds like you just need to prime your oil pump. I had similar
problems with N891JF the first time I rebuilt it and put it back
together. I tried several things, and couldn't get it to prime just
turning the engine over with the starter (plugs removed), until I nosed
it over as far as I dared to get the oil pump as low as possible, and
even then I had to prime the pump by injecting oil into the stock oil
pressure sender hole until it wouldn't take anymore and was definitely
primed. Then the pressure came right up and stayed there. Once primed,
it's never a problem. And before somebody mentions it, I did put some
light grease on the pump gears to facilitate priming during the rebuild,
but that didn't do the trick.
One nice thing about the Corvair engine is that the oil pump is at the
back of the engine, so has no problem priming the pump on a tail
dragger. Also, you can modify an old distributor shaft and spin the oil
pump through the distributor hole on the Corvair, priming everything in
the engine, and pumping up the lifters before first startup. And since
the top plate is removable, you can watch and hear the oil squirting out
everywhere and know that you are good to go. I need to get back behind
that Corvair.....which is still waiting for me to reassemble it on the
work bench......
Mark Langford
m...@n56ml.com
http://www.n56ml.com
Huntsville, AL
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