Carl Froehlich
Well Known Member
Would appreciate any operational experinece: http://infinityaerospace.com/product/other/pre-oiler-and-back-up-engine-oil-pump/
Carl
Carl
Van's Air Force
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Anyone using an engine pre-oiler/backup oil pump?
- Thread starter Carl Froehlich
- Start date
David Paule
Well Known Member
I use one from http://www.oilamatic.com/ on my Cessna 180. So far I've been using it for over 20 years and probably 650 hours.
The installation was not difficult. The package included everything.
It's STC'd for that make and model and others.
I use it on start-up and shut-down. On shut-down, without it, oil pressure drops off before the prop is fully stopped. The prop then stops abruptly. But with the preoiler, using it, the prop goes to the next compression stroke and bounces back. Proof that it's still got lubrication.
For start-up, I turn it on when I begin my pre-start checks, and by the time I'm ready to start, there's 50 psi. Because of the electric drain, I shut the preoiler off and immediately start the engine. I don't know how necessary that is, but it's what I do.
Another use is after oil changes, to pressure-test the system.
Works great and is highly recommended.
The only reason I'm not planning on installing on on my RV-3B is the very tight engine bay. Otherwise I'd do it for sure.
The vendor told me that it's not certified for use while the engine is running but that it doesn't have any ill effects. It was merely the additional certification cost that kept him from certifying that.
Dave
The installation was not difficult. The package included everything.
It's STC'd for that make and model and others.
I use it on start-up and shut-down. On shut-down, without it, oil pressure drops off before the prop is fully stopped. The prop then stops abruptly. But with the preoiler, using it, the prop goes to the next compression stroke and bounces back. Proof that it's still got lubrication.
For start-up, I turn it on when I begin my pre-start checks, and by the time I'm ready to start, there's 50 psi. Because of the electric drain, I shut the preoiler off and immediately start the engine. I don't know how necessary that is, but it's what I do.
Another use is after oil changes, to pressure-test the system.
Works great and is highly recommended.
The only reason I'm not planning on installing on on my RV-3B is the very tight engine bay. Otherwise I'd do it for sure.
The vendor told me that it's not certified for use while the engine is running but that it doesn't have any ill effects. It was merely the additional certification cost that kept him from certifying that.
Dave
A 4-cyl Lycoming circulates oil at a rate of about 7 gallons per minute at 2700. So, the only listed pump which might work in flight is the GP303-12L. The linked charts say it will take 15 amps to deliver 4 gallons at 30 psi, perhaps enough at a reduced RPM.
As for pre-oiling, well, sure can't hurt. On the flip side, if you have enough battery to run a pre-oiler, you probably have enough to spin the prop a few rounds with the ignitions dead.
Mark33
Well Known Member
Hey Carl,
I have an ?Oilamatic? that I?ll sell to you for $1k....they go for $1700. I bought it for my -7 but decided not to use it. I did have it installed and pumped oil through it but then decided to take it off due to clearance issues that I had with other items that were bolted to my firewall. Let me know if you?d be interested in it. Thanks,
Mark
leandrocamposjr
I'm New Here
Suplemento in [email protected] to FMS to OILAMATIC PREOIL to Cessna T210M
