Killing power steering pumps
Killing power steering pumps
(OP)
So I use early 90's power steering pumps belted to a 4 HP electric motor to pump WVO into my centrifuge. It also pumps my clean WVO through a filter so that I can dispense it to my car. At not time is it ever high pressure, its just flow ....
About every 6 to 8 months I have to go to the junk yard and find a new pump because they start to freeze up and become very stiff. I have broke one open and tryed to figure out why the gear pump would become so stiff but still can't figure it out.
Any ideas? I am pretty sure its a seal issue or something. Obviously pumping hot WVO is much different than pumping power steering fluid, but if I could come up with a solution it would be better.
About every 6 to 8 months I have to go to the junk yard and find a new pump because they start to freeze up and become very stiff. I have broke one open and tryed to figure out why the gear pump would become so stiff but still can't figure it out.
Any ideas? I am pretty sure its a seal issue or something. Obviously pumping hot WVO is much different than pumping power steering fluid, but if I could come up with a solution it would be better.
Sail Smart, Sail Hard, Then think about Sailing Fast !!!!!
http://www.mackconsult.com/
Some day I will sell everything, buy a cascade 36 or a cal 40 sailboat, and turn left at the Columbia River Bar !!!!





RE: Killing power steering pumps
RE: Killing power steering pumps
Sail Smart, Sail Hard, Then think about Sailing Fast !!!!!
http://www.mackconsult.com/
Some day I will sell everything, buy a cascade 36 or a cal 40 sailboat, and turn left at the Columbia River Bar !!!!
RE: Killing power steering pumps
Please post pictures of the interior of the pump you broke apart.
At least tell us what make/model/engine it was removed from.
Mike Halloran
Pembroke Pines, FL, USA
RE: Killing power steering pumps
Sail Smart, Sail Hard, Then think about Sailing Fast !!!!!
http://www.mackconsult.com/
Some day I will sell everything, buy a cascade 36 or a cal 40 sailboat, and turn left at the Columbia River Bar !!!!
RE: Killing power steering pumps
RE: Killing power steering pumps
Sail Smart, Sail Hard, Then think about Sailing Fast !!!!!
http://www.mackconsult.com/
Some day I will sell everything, buy a cascade 36 or a cal 40 sailboat, and turn left at the Columbia River Bar !!!!
RE: Killing power steering pumps
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Killing power steering pumps
Online infos suggest later Accord pumps are vane type.
This exploded diagram of an alleged 1990 Civic pump does show some intermeshing gears.
http://www.lingshondaparts.com/hpl/images_car/18SH...
I think An autopsy of a failed pump would be required to come up with a real diagnosis.
In the mean time I might perform a non recirculating flush of some kind of petro oil after each use. First to flush out whatever might come out and prevent it doing harm, but also to see //what// comes out. If you're making biodiesel maybe One of the many automotive snake oils might actually be effective at cleaning, but also blend and burn right along with the waste vegetable oil.
RE: Killing power steering pumps
Sail Smart, Sail Hard, Then think about Sailing Fast !!!!!
http://www.mackconsult.com/
Some day I will sell everything, buy a cascade 36 or a cal 40 sailboat, and turn left at the Columbia River Bar !!!!
RE: Killing power steering pumps
http://www.lucasoil.com/images/medialibrary/MSDS10...
http://www.lucasoil.com/images/medialibrary/44D56C...
RE: Killing power steering pumps
Standard Buna-N (Nitrile) seals are not recommended for use with oils such as Canola (rapeseed), corn or olive oil which I expect would make up a fair content of the WVO you're processing?
I'd wager the seals are swelling around the pump shaft making it difficult to rotate.
Switch the seals out to Viton, or find an alternate pump that uses Viton seals as std.
RE: Killing power steering pumps
My T/W
Golfpin
RE: Killing power steering pumps
Sail Smart, Sail Hard, Then think about Sailing Fast !!!!!
http://www.mackconsult.com/
Some day I will sell everything, buy a cascade 36 or a cal 40 sailboat, and turn left at the Columbia River Bar !!!!