03-19-2023, 07:38 PM
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#1 (permalink)
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Master EcoModder
Join Date: Jun 2008
Location: Oregon
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Electric power steering pump
Has anyone installed an electric power steering pump. It looks like Volvo, Mini and a couple others use one. Why I ask is that I would like to tow my GM Diesel truck behind my motorhome. I want to install a Roadmaster invisibrake system and they need the power assist to work. My Diesel pickup has a hydraboost brake booster powered by the power steering pump, not a vacuum booster.
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02 Saturn L200 5 speed- 265k miles
84 Gmc 6.5 na diesel K30 4x4, TMU
2006 Lincoln Navigator, 215k miles
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03-19-2023, 07:49 PM
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#2 (permalink)
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Corporate imperialist
Join Date: Jul 2011
Location: NewMexico (USA)
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I did. It it wasn't meant to run more than a minute or so at a time.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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03-19-2023, 08:00 PM
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#3 (permalink)
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Master EcoModder
Join Date: Jun 2008
Location: Oregon
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That might be enough to keep the accumulator charged. I get two full boost stops with the engine off. I tow my Saturn L now but after our last trip to Death Valley I really want to take my 4x4 for all the back roads.
__________________
02 Saturn L200 5 speed- 265k miles
84 Gmc 6.5 na diesel K30 4x4, TMU
2006 Lincoln Navigator, 215k miles
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03-20-2023, 12:04 AM
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#4 (permalink)
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Corporate imperialist
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,265
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I used a 12v hydraulic power unit. Did something like 1.4gpm at 1,400psi.
And was not cheap.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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03-20-2023, 10:44 AM
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#5 (permalink)
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Master EcoModder
Join Date: Jun 2008
Location: Oregon
Posts: 556
Thanks: 258
Thanked 198 Times in 156 Posts
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Thanks
__________________
02 Saturn L200 5 speed- 265k miles
84 Gmc 6.5 na diesel K30 4x4, TMU
2006 Lincoln Navigator, 215k miles
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03-20-2023, 10:33 PM
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#6 (permalink)
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It's all about Diesel
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
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Until about 20 years ago, there were some car with electro-hydraulic power steering. Not so usual, and they became less common once all-electric power steering became mainstream. I remember some such as the 5th-generation Volkswagen Polo and the 2nd-generation Opel Astra, yet AFAIK at least the versions made in Brazil later got the electro-hydraulic power steering replaced by a non-electric hydraulic power steering.
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03-25-2023, 02:34 PM
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#7 (permalink)
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Master EcoModder
Join Date: Jan 2012
Location: United States
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You're best off finding an old one out of another car. You need relatively high pressure, but not much flow, and ideally pressure based speed control.
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