anyone runing a preluber?

 

never heard of such a thing, what is it?

 

its a electric motor/pump, that taps into your oil supply and pumps oil and builds oil pressure before you start your engine. seethe one i am looking at www.pre-luber.com

 

i have had one on my 88 7.3 since it was 2 days old

 

oh yeah I've heard of those. The new ones use compressed air. Jeggs has them. I want to put one on my truck. They eliminate oilless startup. Really good idea.

 

Yeah, I have one. Works great. Wanted to eliminate start up wear as much as possible, especially on this overhead cam engine.

Incidentally, I had one of the older pump-type units on a previous vehicle. It didn't last very long. It also used unfiltered oil which, while better than nothing, was not as good as the current unit, which is "charged" with filtered oil. The compressed air is a one-time thing; it's like a well pressure tank.

I think you'll find further discussion on this if you do a forum search.

 

Do any of these also continue to flow oil after engine shut down in order to cool down bearings in a turbo?

 

The pump-type ones can be set that way. With the pressure tank, you could discharge the tank's oil unless the solenoid valve closed on shut down. I suppose you could buy a larger tank and time it to partially discharge, but the beauty of the pressure tank is in it's simplicity and reliability.

I guess if I were concerned about a turbo, and for some reason couldn't just let it run for a while after being "on it", I'd go with the pump type. But then I'd want to figure out how to filter its oil.

 

yeah for a turbo the automated style are your best bet. I thought that the oil got pushed back into the cylinder when the engine oil pump came to pressure. That would mean that the pressurized ones would recharge while the engine was running. I could easily be wrong on this, but I'm pretty sure that's how they work.

 

Turbo or not, an electric oil pump would not rob the engine of horsepower and could be run prior to startup and for 10 minutes after shutdown (shorter if the engine was not hot). That is a great idea. While we are at it, might as well have an electric water pump and run the coolant for 10 minutes after shutdown too.

 

Yes, the "pressure tank" type charges when the engine is running. It is very simple and reliable. Racers often use them also to prevent oil starvation during long, hard cornering, particularly with OHC engines.

In my experience, the electric oil pumps are much more expensive, but still not very longlived.