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Is not priming your oil pump after install a problem #969358 10/24/09 12:15 AM
Joined: Jan 2009
Posts: 126
Renegade Offline OP
Wheeler
I just finished installing my new oil pump and buttoned up everything when I realized that while everything was going so smoothly i forgot to prime the pump. IS this going to be a large issue, warranting me to remove it and prime it or will it be ok? Is there another way to prime the pump by pumping oil into somewhere in the block? Thanks Chris
I also just want to apologize if anybody thinks this is a repeat, I searched for a previous thread and couldnÆt find it.
<img src="/forums/images/graemlins/scared.gif" alt="" />


87 Dodge Raider 4.3 Vortec work in progress
89 Dodge Raider 3.0 V6 Fully Restored
Links are in my Bio to Photos
Re: Is not priming your oil pump after install a problem [Re: Renegade] #969359 10/24/09 03:03 AM
Joined: Jan 2008
Posts: 985
1
1986powerram50 Offline
Rock Warrior
*****
I know on my 2.4 truck, I pulled the oil pump all out and disassebled it to do a silent shaft delete. All they said was to pack the gears full of grease.

Whats the worst that could happen? Its just a motor......


--keRby

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Re: Is not priming your oil pump after install a problem [Re: 1986powerram50] #969360 10/24/09 03:20 AM
Joined: Jul 2002
Posts: 159
4runnerpilot Offline
Wheeler
One thing to try is this:
Fill the truck with oil, and loosen the oil filter a couple of turns.
Using a blowgun on an airhose, and a rubber donut (or even your hand) to seal the oil fill hole, force air into the crankcase using the PCV hose or similar. Even if you can only get .5 in there, the pressure will force oil up the pickup, through the pump and out the filter mount.

Good luck!

Last edited by 4runnerpilot; 10/24/09 03:21 AM.

88 Trooper, 2.6 5spd
89 Trooper RS
92 Montero

Re: Is not priming your oil pump after install a problem [Re: 4runnerpilot] #969361 10/24/09 03:44 AM
Joined: Oct 2009
Posts: 82
M
MarcDurant Offline
Getting the Wheeling Fever
You're really going to want to read this thread, titled "Bob's 3.0L Engine":
http://www.4x4wire.com/forums/showthread...ge=4#Post916736

They start talking about the oil pump around page 19 or so.


89 Raider V6 manual
89 Montero 2-door Coupe "Super Legera"
91 Montero 4-door manual (Mint! Sunroof, cruise, power everything, BOUGHT FROM THE ORIGINAL OWNER!)
Re: Is not priming your oil pump after install a problem [Re: MarcDurant] #969362 10/24/09 04:52 AM
Joined: Sep 2004
Posts: 4,479
StockRaider Offline
Roll Me Over
***
You can pour oil down the tube from the oil filter, that sometimes does the trick.


Richard E
1989 Montero - Stock-ish
1989 V6 Auto Raider - 5.3 Vortech Swap.
1987 Mitsubishi Starion 2.6t, soon to be 3.5
1983 Honda XL600R
Re: Is not priming your oil pump after install a problem [Re: Renegade] #969363 10/24/09 05:00 AM
Joined: Jul 2007
Posts: 54
M
mitsumonki Offline
Getting the Wheeling Fever
I did the same, forgot to try priming it. been 7k since no problems yet <img src="/forums/images/graemlins/butwiggle.gif" alt="" /> but it did come in a bag dripping w/ oil and I covered the engine w/ assembly lube

Re: Is not priming your oil pump after install a problem [Re: mitsumonki] #969364 10/24/09 04:22 PM
Joined: Apr 2006
Posts: 1,193
mxmikie Offline
Body Damage is Cool
remove the oil sending unit and fill the cavity with oil with a oil squirt can


it dosent have to be surrounded by water to be an island
Re: Is not priming your oil pump after install a problem [Re: 4runnerpilot] #969365 10/24/09 05:13 PM
Joined: May 2000
Posts: 6,132
K
Kevin C Offline
Trail Leader
****
Quote
One thing to try is this:
Fill the truck with oil, and loosen the oil filter a couple of turns.
Using a blowgun on an airhose, and a rubber donut (or even your hand) to seal the oil fill hole, force air into the crankcase using the PCV hose or similar. Even if you can only get .5 in there, the pressure will force oil up the pickup, through the pump and out the filter mount.

Good luck!


This works even better if you have somone crank the engine over while you do pressurize the crankcase.

Regardless its always good to pull the plugs to crank the engine over when priming it. Its a lot less work on the starter, the rod bearings dont get loaded up and the motor spins over a lot faster, helping to get the pump primed.

All this is worth it to avoid any chance of a dry start.

Kevin


87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...







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