oil pump absolutely will not prime or pump

[Bamofo]

The oil pickup is on there, it's tight and there is Definetly an oring. Those guys put in a ton of time to making that right for you. I personally don't just start the engine and hope for the best but if hans suggested it then I would do it.

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[stretchedk7]

It's probably got no vacuum or the relief is stuck...z

[fastblueufo]

Don't know if anybody already asked but, was the O-ring installed behind the pump?

[Bamofo]

Originally Posted by fastblueufo

Don't know if anybody already asked but, was the O-ring installed behind the pump?

even if it was that, which i would guess it isnt... Ive taken apart a motor that broke a valve that was missing that oring and ran fine for 30k.... not spinning fast enough is my guess. some pumps just suck to prime.

I seriously wouldn't keep trying to prime it though. You have two options, pull the pump off take the back plate off and repack it with Vaseline, nice long job of about 4 hours for you to do yourself, or start the car up like Hans said.

I assume your tuner has made a new tune for the additional Head work you had done as well as your running a stroker motor now.... Just the head work alone with throw the maf idle values off by more then the 25% the stock ecu allows.... Things to consider after hearing about all of the past behind this motor from the shop before hans...

[outfrontmotorsports]

Assuming all other things are correct, ie: pickup tube o-ring, pressure relief not stuck open, etc I have your fix No need to pull oil pans off or dissasemble the front of the motor to get to the relief valve. We have seen a few like this before and the pump would never prime (too dry). BTW, pouring oil down the oil sending unit hole is useless, that would just fill the oil gallies up to the filter pad, it will never go any further as the filter has anti drain back and the next path is up hill to the pump. The oil system from the pan to the filter pad is a simple path, up the pickup--through the pump and down to the filter pad.

Starting the engine and just running it, as the builder suggests, is a really poor idea.

Proceedure: you must pull off the oil filter and leave it off, try cranking for 30 seconds more to see if oil comes out to the ground (it may self prime like this) if it does come out, screw the filter on--you're done. Note, filling an oil filter on a new engine build is the worst thing you can do to get the "pump primed" because for oil to go up the pickup tube, air must go out of the filter pad--and with a filled oil filter you have blocked any chance of any air to come out. seen it many times.

If Step one didn't work out due to the pump being really dry, you can put compressed air in the engine block while cranking. You must block off breather vents like the valve covers, main crank breather and if sTi, then the top block vent. You must be careful not to close off all the ports and pressureized the block too much as then you can blow seals out etc. 5 psi of Block pressure would be perect but remember with lots of areas to escape you might have to blow a lot of air in. How does this work? it pushes the oil up the pick up tube. Another good "saftey" while doing this is to remove the oil cap and use the palm of your hand as a "pressure relief" doing it that way will tell you whether or not your getting enough pressure in there at all.

This will work

Super important to remove the oil filter for any more cranking

Of course, for those of you who properly prime the oil pumps, filling the filter is o.k.

Outfront

[Bamofo]

Hans just called me and said the person got it primed. Running a really thick 30wt oil. Primed right up for him on startup Great add on for the pressurizing the system though I've done that too

[stretchedk7]

Sweet good for him.

[lavid2002]

So he started the engine?

[stretchedk7]

I believe it's all good now and fixed.

[nomoredsm]

ok, i did indeed start the engine and got oil pressure in less than 2 seconds.. Guess i just shouldve went ahead and just done it rather than worry so much and yeah if anyone ever needs engine work advanced engine is def the place to go even if its a crazy long drive, the shop is beautiful and its like something you'd see in a magazine. Definitely the nicest, and cleanest machine shop ive ever put my eyes on & ive seen quite a few and am gonna take a 12valve cummins there next.. Oh yeah and the prices were extremely fair also.. For the amount of work they did for me not only were they the ONLY place i could find that would do the work within 1000 miles of me, but did it probably better than anyone else wouldve, no offense vendors. I took them a motor in 11 boxes, completely disassembled and unorganized and dirty as heck, and a 2.5 shortblock (for the crank) i bought used and they completely assembled it, cleaned everything, even soda blasted most of the bolts to make them look new and repainted oil pan and dipstick tube and more. I couldnt be happier with them. I paid less than i wouldve expected and if anyone needs info to get ahold of them for getting your own projects done right then pm me..

[cm1wrx]

+1 for the oil filter trick from outfront motorsports. I just did one a couple of months ago (similar situation) and primed my hybrid build last night the same way. Worked instantly!

[outfrontmotorsports]

Originally Posted by cm1wrx

+1 for the oil filter trick from outfront motorsports. I just did one a couple of months ago (similar situation) and primed my hybrid build last night the same way. Worked instantly!

Thanks

[cm1wrx]

Originally Posted by outfrontmotorsports

Thanks

my hybrid build is a shortblock from your shop........

[jakewrx]

i started my rebuild up after way to many attempts at priming. oil pressure within 3 secs