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Oil accumulator to prevent engine wear #5398564 04/09/20 03:32 PM
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IMSA_Racing_Fan Offline OP
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I remember hearing some number like 90% of engine wear occurs at startup.
Has anyone here seen, heard, or installed themselves a hydraulic accumulator with a solenoid operated valve that shuts off and on with the ignition switch?

exploding-hydraulic-piston-accumulator-e.jpg

2012 Cadillac CTS 3.0
1997 Ford Aspire
1991 Jaguar XJ6
1986 Kawasaki ZG1000 Concours
Re: Oil accumulator to prevent engine wear [Re: IMSA_Racing_Fan] #5398571 04/09/20 03:38 PM
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CT8 Offline
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Yes and there are also electric primers pumps.. The question is do we really need one? May be for a seldom driven vehicle. I hear lots of stuff and we need to discern what we hear. Usually a maintained reliable engine brand out lasts the vehicle.


2015 F150 2.7
2018 F350 6.2
Re: Oil accumulator to prevent engine wear [Re: IMSA_Racing_Fan] #5398630 04/09/20 04:55 PM
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2009Edge Offline
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AMSOIL had one with a solenoid and accumulator at one time.

Re: Oil accumulator to prevent engine wear [Re: IMSA_Racing_Fan] #5398633 04/09/20 04:57 PM
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ripcord Offline
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I had a project manager whos late 80s Mustang SVT burned up a couple of turbo's and when he tore one down he found coked bearings. To try to fix the issue he installed an accumulator that released whenever oil pressure fell below a certain point. It was plumbed into T at the turbo's oil line to give it some extra oil pressure while it spun down at shutdown.

Last edited by ripcord; 04/09/20 04:57 PM.
Re: Oil accumulator to prevent engine wear [Re: IMSA_Racing_Fan] #5398671 04/09/20 05:39 PM
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Marco620 Offline
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Apexi Turbo Timers work great. Pull E brake up,set for 5 minutes and pull key out. I think if the car was seldom ran then doing the Lubegard storage additive https://www.lubegard.com/products/free-eze/

I think this also might be a case where a high ester based oil might work really well.


15' Civic r18, 335,000 mi M1 0w30/5w30 & LG Biotech,Castrol CVT Fluid,Redline Si-1
Dog Whisperer! Honda/Acura nerd; detest ethanol,wind, and anything vegan.


Re: Oil accumulator to prevent engine wear [Re: IMSA_Racing_Fan] #5398687 04/09/20 06:07 PM
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kschachn Offline
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Originally Posted by IMSA_Racing_Fan
I remember hearing some number like 90% of engine wear occurs at startup.
Has anyone here seen, heard, or installed themselves a hydraulic accumulator with a solenoid operated valve that shuts off and on with the ignition switch?

The majority of wear does not occur at startup, that is a myth. The majority of wear occurs during the warmup phase.


1994 BMW 530i, 252K
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Re: Oil accumulator to prevent engine wear [Re: IMSA_Racing_Fan] #5398769 04/09/20 08:32 PM
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bulwnkl Offline
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Low-rpm, low-flow, post-start is when the accumulator would be diverting oil from the engine to re-charge itself. So, you’d have pre-oiled, but then have insufficient flow for a while after start-up. Are you accomplishing much with such a system?

I understand the concept here, but if I wanted to spend money and time on a pre-oiler, I’d use an electric pump. That eliminates:
—the need to regularly check or re-charge the accumulators (that was nearly an annual need on some of the tractor transmissions), and
—the diverted oil flow when the engine is already receiving least oil flow.


I use speech recognition frequently. Please excuse any consequent grammatical or typographical errors.
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