|
Bob, here's my opinion (and that's all it
is).
The oil is so much heavier than air that if there is even
the smallest air leak, I don't think you will ever pull oil through the system
using a vacuum. Even if there is not a leak, I think the odds are you will
end up pulling air bubbles through the oil rather than pulling oil up the tube
and past the pump. Plus, as you noted the pump has a small hole for
spraying oil on the chain which could readily be your air leak. I guess
you could try putting a plug in the oil chain hole ( I personally would not
stick anything in that hole myself - would not want it plugged
{:>)).
What I would do, is to remove the chain from the oil
pump. Get my self a heavy duty electric drill and put a socket on it the
size of the oil pump nut and spin that pump. That is a traditional way to
prime an oil pump. Now, that would require you to take off the front cover
of course.
FWIW
Ed
----- Original Message -----
Sent: Tuesday, March 07, 2006 7:38
PM
Subject: [FlyRotary] Possible oil
pressure problems
Help!
Getting closer to engine start (3 months?).
Put oil in the pan and had a brilliant (???) idea. If I pulled a vacuume
on the output hose, over time I should be able to pull oil past the oil pump
and prime the system.
Well, it didn't work. Couldn't hold a
vacuum or pressure possibibly due to:
1. Leakes in the
system on the pressure side of the pump (that famouse O ring in the front
cover?)
2. The mannor in
which the oil pump chain is lubricated.
If number 2 is the reason, I can keep
going. What is normal here?
Bob Darrah
20B
|