Offshoreonly.com - Pre Lubers

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- - Pre Lubers (https://www.offshoreonly.com/forums/general-q/148542-pre-lubers.html)

2112	01-07-2007 12:17 PM

Re: Pre Lubers

Quote:

Originally Posted by checkmate454mag (Post 1985128)

You dont need to worry about -12 fittings on a pre-luber. All of my oil lines are -12, but the pre-luber lines are -8. No oil flows through the pre-luber lines when the engine is running. You dont need to worry about flow porblems. The only oil that runs through the -8 lines is oil pumped from the pre-luber. ESP sells an inexpensive check valve to keep the oil where its supposed to be. If you look at the picture I posted, the check valve is the brass thing screwed into the starboard side of my oil filter head.

I was thinking about finding adapters that go from 6 or 8 to 12. those are hard to find. But I now see how you did it. The hose you have up and over the pump, Is that a recirculation hose to prevent priming problems?

Vinny P

01-07-2007 02:03 PM

Re: Pre Lubers

No, that is a by-pass. On the port side, on the bottom of the blue hose, you will see a 45lb check valve. That is too limit the pressure the pump can build to 45 psi. It is supposed to save the pump from extra load.

Panther

01-07-2007 03:51 PM

Re: Pre Lubers

What happens when your out on the water and the check valve decides to chit the bed?

Vinny P

01-07-2007 04:13 PM

Re: Pre Lubers

Quote:

Originally Posted by Panther (Post 1985487)

What happens when your out on the water and the check valve decides to chit the bed?

I guess you can add 1 to the list of 10000 things that can ruin your day.
Seriously, there are guys who run this system without the check valve installed. I guess the pump itself stops the oil from back flowing.

2112	01-07-2007 07:06 PM

Re: Pre Lubers

Quote:

Originally Posted by checkmate454mag (Post 1985504)

I guess you can add 1 to the list of 10000 things that can ruin your day.
Seriously, there are guys who run this system without the check valve installed. .

Now that's Faith.

waybomb

01-08-2007 08:12 PM

Re: Pre Lubers

Any idea on the flow these little pumps put out at 45psi? How much current does the motor draw at 45psi?

Vinny P

01-08-2007 09:53 PM

Re: Pre Lubers

Quote:

Originally Posted by waybomb (Post 1986989)

Any idea on the flow these little pumps put out at 45psi? How much current does the motor draw at 45psi?

I dont know how much flow the pump is rated for. ESP offers 2 pumps, a 10 amp and 15 amp.. The one I have is the 15 amp.

2112	01-09-2007 12:31 AM

Re: Pre Lubers

1 Attachment(s)

I am goint to try to upload a plumbing diagram, Hope it is right side up:D

Phazar454Mag

01-09-2007 05:10 AM

Re: Pre Lubers

Quote:

Originally Posted by waybomb (Post 1986989)

Any idea on the flow these little pumps put out at 45psi? How much current does the motor draw at 45psi?

I have the 15 amp pump from ESP too and also use it for oil changes, but I have never measured the time it takes to pump the oil out of the engines. That could give an indication of the flow. My boat is in winter storage so I am not going to change oil anytime soon.
May be somebody else have noticed the flow of the ESP pumps during oil changes ?

Phazar454Mag

01-09-2007 07:24 AM

Re: Pre Lubers

Quote:

Originally Posted by Phazar454Mag (Post 1987362)

What the flow of oil is through the engine is probably another matter when the pump is connected to the oil system of the engine. Anybody that knows what the flow is of the ESP system when connected to an engine ?

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