Oil pressure
 

How long should it take to build oil pressure with a 3/8 drill and a primer tool? I have been trying to prime my engine and turn it over occasionally like the machinist said since it’s being stored but I cannot seem to get any pressure build up on the gauge even though the drill is meeting a lot of resistance. I took the gauge loose and am only getting drips out of the line.

Make sure you are turning it counter clockwise, and a powerful 1/2" drill will usually work a lot better.

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+2 re 1/2” drill.

Are you using a gutted dizzy as the priming tool or just a rod? It’s my understanding the gutted dizzy helps in pressurizing system.

What oil filter and is it new?

If rotating the drill correct way and there is sufficient oil in pan, and the filter is new, might take some time to fill filter?

:confused:

Since I am having to run the drill in reverse I am getting slippage because the chuck is loosening so that’s probably why. I don’t have access to a 1/2 drill

That is most likely your issue. They turn over hard with 10/30 oil and not going to be any easier if you are running anything thicker than that.

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Dont you have heavy oil in that engine?If your going to do it on a regular basis you will need to go buy a 1/2 in drill motor.Tom

Yeah it’s got 20/50 in it and I have no way to drain it because the cradle is in the way of the drain plug

Local tool rental ? Home Depot in Greenville probably rents 'big' drills.


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You can do it with a 3/8" drill, but it will get hot real fast. Should take about 15 sec to get full oil pressure.

That's chevy stuff. Our Pontiacs it makes no difference.

Clay

Also make sure the oil plug on the back of the engine is in place , without the plug you won't build up much oil pressure.---BOB

Thanks- Learn something new every day!

Distributor body esp important in some of the early blocks like my 409s .

I have toasted a Craftsman 1/2 " before. It really loads the drill, a 3/8 is not going to cut it. It does take awhile to get pressure up to the top even with a 1/2".

And it it does not work very well when your oil lines are reversed going out to you external filter adapter. Ask me how I know :)

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Should you really expect an oil pressure gauge to read anything if you're turning the engine with a drill? It takes a few seconds for my engine to build oil pressure when I cold start it, and that's with it turning at 1,000 rpm.

I wouldn’t be too concerned with building up oil pressure and getting oil flowing to the top end.

Spin the oil pump for 10 or 15 seconds, rotate the engine some and call it good.

Yes. Turning with an electric 1/2" drill will show plenty of oil pressure on the gauge.

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:fish::fear:

Grind 3 flats on the priming tool for the chuck teeth to set on and when chucking the tool go around all the chuck holes tightening all of them not just the one hole.

3 equal depth and spaced flats no cave man crap