|
|
Post by dani4JB1T on Feb 8, 2006 12:29:07 GMT 11
I have been off line for a while because Im still out of home, out of rig... Well...This is my question now: What´s the flow volume of our power steering oil pump...the manual talks only about work pressure, but pumps don´t make pressures...so...what´s the flow of our unknowed pumps ?...anyone knows ? cheers all  |
|
|
|
Post by geeves on Feb 8, 2006 14:18:41 GMT 11
Im guessing your thinking hydrolic winch. Power steer pumps dont make a lot of flow as presure is all that is needed for steering. If you can find specs for Subaru pumps they will be the same. The Isuzu pump is a mirror image of the Subaru. I know someone with a Comeup hydrolic winch on a Isuzu pump. Works ok but slow
|
|
|
|
Post by rick1970 on Feb 11, 2006 20:18:23 GMT 11
Don't know for sure, but most automotive steer pumps usually give about 2-3 US gpm (7-11 litres per min). you can get around this controlled flow rate, but it gets messy and expensive using external flow control and solenoid valves.
Dose anybody know the pressures for a Rodeo steer pump? I am looking at making mine into a tipper using the steer pump and need to work out hydraulic cylinder sizes and havent got around to checking the pressure yet
|
|
|
|
Post by dani4JB1T on Feb 12, 2006 12:01:20 GMT 11
Geeves: Well...Im not thinking in hydrolic winch, what I want to know is what hydraulic engine I can run with my steer pump (looking for specs on the market)....but now you say it...mmhhh....that could be a good idea. For another side I don´t have access to Subaru´s info.
Rick: The book says 1280 PSI are the maximun working pressure for 4J engine and 1350 for petrol ones. Sorry me, but what it is "tipper" ?? ...and what kind of work do you want to do with cylinders ??
cheers guys...and thanks for answers this post.
|
|
|
|
Post by rick1970 on Feb 12, 2006 17:17:47 GMT 11
I want to make the steel tray tip, like a dump truck, for firewood and the like. I guess that i am gettin lazy!
I needed the pressures to work out cylinder sizes to get enough lifting pressure.
What exactualy do you want to run of your steer pump?
As a rule of thumb, 1 US gpm of oil flow at 1500 psi is about 1 horsepower, so i am guessing that you may be able to get about 2 horsepower from your steer pump.
Let us know what you want to do, what you want to drive with the hydraulic motor and at what speed (hydraulic motor speed) as i have a lot of industrial and mobile hydraulic experiance and may be able to help.
|
|
|
|
Post by dani4JB1T on Mar 20, 2006 11:18:57 GMT 11
HI there mates.
Im back home again.
Rick: Well, I was following Wizbru`s idea to run an air compressor from hydraulic motor.(http://clubisuzu.proboards29.com/index.cgi?action=display&board=Engine&thread=1130537582&page=1). I think it could manage both systems (power steering + OBA) with a 2 ways valve, car stopped.
What do you think?
Grrrreeeetings...
|
|
|
|
Post by dani4JB1T on Mar 20, 2006 11:40:06 GMT 11
any good news on your project Rick ??
|
|
|
|
Post by rick1970 on Mar 22, 2006 5:24:37 GMT 11
Running a small compressor (5-6cfm) should not be a problem, using a solenoid valve to turn compressor on and off via a pressure switch on air tank and master switch on dash. You may have to find a small compressor and size the hydraulic motor to give you the correct compressor speed. I can put a flowmeter on my Rodeo and check the flow if need be, just have to got too work early one day and do it.
Nothing done to mine yet, gotta fix the front end and rear shackle hangers first. Got way too much neg camber with no adjustment left and keep cracking the shackle hangers off the chassis! (first extended shackles too long)Makin new HD ones to fix that one.
|
|
|
|
Post by geeves on Mar 22, 2006 8:44:36 GMT 11
camber is best fixed with a balll joint flip. Maybe a spacer as well but not normaly req
|
|
HiMuZuLux
Isuzu Junior
IFS: A great reason to own a 9" angle grinder :)
Posts: 125
|
Post by HiMuZuLux on Mar 22, 2006 13:55:39 GMT 11
Just can't see the point in doing this other than for interest and as a hydraulic learning exercise. The A/C pump will run happily from the motor itself, and drains approximately nothing from the engine output when its not engaged (they have an electric 'clutch' which is switched on and off - note the slight sag in power when you turn on a/c in a vehicle). And while I'm not a hydraulics whiz, I would think a PS pump would be unsuitable for a hydraulic ram to tip a deck... normally those rams are quite large in the bore and would therefor be quite slow to operate (although that might not be so bad). For a ram, have a look at this: www.trademe.co.nz/Home-living/Outdoor-garden-conservatory/Garden-gear/Machines/auction-51352044.htm as I was looking at one of these as a press for the workshop... fast and slow speeds and with a bit of lever mathematics it would probably do the job... just a thought Steve |
|
|
|
Post by dani4JB1T on May 21, 2006 8:40:36 GMT 11
|
|
