Oil accumulator to prevent engine wear

[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?

 

[CT8]

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.

 

[2009Edge]

AMSOIL had one with a solenoid and accumulator at one time.

 

[ripcord]

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.

 

[Revving2Redline]

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.

 

[kschachn]

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.

 

[bulwnkl]

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.