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Old 08-12-2021, 01:19 PM   #1
mtdave2
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temporarily plugging a power steering pump

I have my project engine (2018 l96 out of an express van) set up on a run stand. I would like to find an easy way to allow me to run the motor without bypassing the pump. can the pump outlets just be plugged, fluid added, and ran? or does it have to circulate? can the lines be plumbed together if so?
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Old 08-12-2021, 04:44 PM   #2
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Re: temporarily plugging a power steering pump

My .02 is to loop them. I think as long as the pump is turning it's putting out some level of pressure. Maybe a -6 90 degree out the pressure side looped to the return nipple?
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Old 08-13-2021, 09:02 AM   #3
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Re: temporarily plugging a power steering pump

Sounds like a bad idea to me. By looping you will be pressurizing the return side of the pump which normally does not see high pressures.
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Old 08-13-2021, 09:43 AM   #4
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Re: temporarily plugging a power steering pump

How long do you plan on running it ? Just pull the belt .
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Old 08-13-2021, 10:34 AM   #5
mtdave2
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Re: temporarily plugging a power steering pump

I would just rather plug it.. can anyone think of why not?

the engine will run for a while..dont want to mess with the belt
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Old 08-13-2021, 12:47 PM   #6
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Re: temporarily plugging a power steering pump

I'd just loop it back into the lid. It may make a mess since it's wide open and those vane pumps can move a lot of fluid when there's no restriction to the pressure.
I would zip tie it and also have a rag to keep the opening covered since it could be "splashy" in there.
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Old 08-13-2021, 04:36 PM   #7
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Re: temporarily plugging a power steering pump

Another thought would be get a steering box that could be temporary and plumb the lines like normal. A used box even it leaks a bit.
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Old 08-13-2021, 10:08 PM   #8
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Re: temporarily plugging a power steering pump

loop it. thats exactly how it flows when you're not turning the ps box.
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Old 08-15-2021, 09:09 PM   #9
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Re: temporarily plugging a power steering pump

You can not just plug the outlet. Do. Not. Do. That.


Either feed the outlet back into the return port, or run the engine with the belt off.
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Old 10-04-2021, 11:56 AM   #10
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Re: temporarily plugging a power steering pump

just a follow-up on this.. i have started the motor and connecting the hoses together works just fine.
https://www.youtube.com/watch?v=HCxUIWmWNQA
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Old 10-05-2021, 05:56 PM   #11
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Re: temporarily plugging a power steering pump

that thing is so quiet sounds nice
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Old 10-06-2021, 01:22 PM   #12
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Re: temporarily plugging a power steering pump

I looped the pressure side back into the return and filled it with fluid....worked fine.
I'm using braided PS high pressure hose and stainless -AN fittings
2002 LS1
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Old 10-10-2021, 02:19 PM   #13
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Re: temporarily plugging a power steering pump

MT dave, what power steering pump did you use? The van's come with a remote mounted reservoir, correct?
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Old 10-13-2021, 08:34 AM   #14
mtdave2
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Re: temporarily plugging a power steering pump

Quote:
Originally Posted by Bocephus69 View Post
MT dave, what power steering pump did you use? The van's come with a remote mounted reservoir, correct?
nope the motor came with it right out of the van.
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