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Technical Shop => Engine, Transmission & Rear End => Topic started by: Jsand73440 on September 03, 2022, 03:28:30 PM

Title: 440 oil pump priming
Post by: Jsand73440 on September 03, 2022, 03:28:30 PM
I am getting read to prime my oil system and cavities, etc on my 440. I have the priming rod that i will turn with my drill. My question is, i was told that i should run the drill/shaft direction counter clockwise. Is this correct? I know that i need to be turning the engine slowly by hand using the large nut/wrench on the front dampener wheel at the same time. The engine turns clockwise and the primer rod counter clockwise?
Title: Re: 440 oil pump priming
Post by: RUNCHARGER on September 03, 2022, 03:50:53 PM
Correct.
Title: Re: 440 oil pump priming
Post by: B5fourspeed on September 03, 2022, 04:05:08 PM
Fill the oil filter 1/2 to 3/4.Turn rod counter clockwise with drill.You will feel  the drill start to struggle when you are building up pressure.I bought a cheap mechanical oil gauge so I could see when I was getting pressure.I got it up to 60 psi.My engine builder told he primed the engine.When I started the car for the first time I had no oil pressure.I replace a brand new oil pump with another new one.I did the process I started and I got good pressure.I don't know if the pump was good or bad.I just changed it to be on the safe side.
Title: Re: 440 oil pump priming
Post by: Jsand73440 on September 03, 2022, 05:22:42 PM
Quote from: B5fourspeed on September 03, 2022, 04:05:08 PM
Fill the oil filter 1/2 to 3/4.Turn rod counter clockwise with drill.You will feel  the drill start to struggle when you are building up pressure.I bought a cheap mechanical oil gauge so I could see when I was getting pressure.I got it up to 60 psi.My engine builder told he primed the engine.When I started the car for the first time I had no oil pressure.I replace a brand new oil pump with another new one.I did the process I stated and I got good pressure.I don't know if the pump was good or bad.I just changed it to be on the safe side.
Awesome, thanks for the info. I too bought a cheap pressure gauge to watch the pressure build as well.
Title: Re: 440 oil pump priming
Post by: RzeroB on September 04, 2022, 12:48:58 PM
Quote from: B5fourspeed on September 03, 2022, 04:05:08 PM
Fill the oil filter 1/2 to 3/4.Turn rod counter clockwise with drill.You will feel  the drill start to struggle when you are building up pressure.I bought a cheap mechanical oil gauge so I could see when I was getting pressure.I got it up to 60 psi.My engine builder told he primed the engine.When I started the car for the first time I had no oil pressure.I replace a brand new oil pump with another new one.I did the process I started and I got good pressure.I don't know if the pump was good or bad.I just changed it to be on the safe side.

I've ran into that problem a couple of times myself. Sometimes the pump cavitates and is unable to pull the oil up from the pan. I pack the scroll and rotor of the pump with Vaseline which prevents it from cavitating and quickly liquifies as soon as the engine starts running.