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Old 11-14-2012, 07:42 AM
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How to::: Priming An Engine

Hey guys I am ready to put my engine back in my truck. Everything is together. How do I prime the oiling system??? Also can I go ahead and have a oil pressure gauge hooked up while I prime to get a pressure reading????

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Old 11-14-2012, 07:54 AM
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priming

its best to use something to turn the pump. either and old dizzy or a special tool... and yes u should use a gage to make sure your getting pressure... for me, i'd recommend turning the engine over while pumping. but most times thats a pain without the starter doing it. BUT.. make sure u know where it is so u can put in the dizzy... either right or 180 out..
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Old 11-14-2012, 08:59 AM
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I bought a shaft from the parts store that goes down to the oil pump, put a drill on it and spun it till oil was coming out of the rocker arms
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Old 11-14-2012, 09:05 AM
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Ok I have an old distributor. After I install it what do I do. I can hook up the battery to the starter and cross the two posts to turn over the engine. Is that how I prime it. can I use the distributor I am going to use.
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Old 11-14-2012, 09:48 AM
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How to::: Priming An Engine

Here is an inexpensive tool to use to prime your engine. Summit Racing® Oil Pump Primers SUM-901010 - SummitRacing.com. Install in a drill and prime until you see oil at the rockers. Once you see oil at the rockers stop after about 30 seconds. You don't want to wash the engine lube away priming too much. You do not turn the engine over with the starter motor to prime the oil system.
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Old 11-14-2012, 10:59 AM
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No one has asked, but exactly what engine are we talking about?

For most, the "old distributor" is the best way. The gear must be removed and the top of the shaft "cut off" so it can be chucked in a drill. Chevys and some others rotate clock-wise, so any good 3/8" or bigger drill will do the job. Most eniges turn CCW, so a reversable drill is necessary. Anything over about 60 lbs. pressure will "like" a 1/2" drill much better. Certain engines REQUIRE a distributor housing or other bushing mechanism in order to properly transfer oil across the lifter galleries. Chevys and some V6s are this way. Others don't have the oil passage across the hole, but using a housing keeps the whole thing nicely centered. We have one with the teeth machined off the gear so it gets a good "bite" all around the oil pump drive (GM), and use the appropriate housing (Chevy, Pontiac, Buick; Olds is a "hex").

If you don't have a drill to do the job, a "speed handle" will do it, just not as quickly. One can easily "hand pump" 50 lbs.

FWIW

Jim
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Old 11-14-2012, 11:51 AM
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OK guys i went to the parts store and got the tool to do this. I hooked the gauge up and started. Oil pressure is at 50 but and there are 4 or 5 rockers I cant get oil to come out of. I took those push rods out and made sure they were cleaned out and I still cant get oil to come out of those rockers. The other rockers have good oil coming out. Is it ok to say that everything is good or is something wrong. Keep in mind I just pulled this engine out of my truck to change rear main seal and new gaskets so I wouldnt think anything is wrong. By the way its a sbc Need help asap, start new job tommorw
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Old 11-14-2012, 07:44 PM
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Quote:
Originally Posted by allansmith859 View Post
OK guys i went to the parts store and got the tool to do this. I hooked the gauge up and started. Oil pressure is at 50 but and there are 4 or 5 rockers I cant get oil to come out of. I took those push rods out and made sure they were cleaned out and I still cant get oil to come out of those rockers. The other rockers have good oil coming out. Is it ok to say that everything is good or is something wrong. Keep in mind I just pulled this engine out of my truck to change rear main seal and new gaskets so I wouldnt think anything is wrong. By the way its a sbc Need help asap, start new job tommorw
Rotate the engine a quarter turn, prime again, rotate another quarter turn, prime again. See if that helps.
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Old 11-15-2012, 04:25 PM
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Priming

as rich said.. i changed my cam a few months ago and got the same as u mentioned.. most got oil some didn't.. after turning the engine i got oil everywhere.. but u really need to pay attention where the motor is and after u turn it.. as i mentioned above.. you'll end up at TDC or BDC.. that'll put the dizzy correct or 180 out.. if your running a 350 chebby and the timing marks are 6 and 12 then the dizzy needs to be put in with #6 firing. one full turn point it to #1 cyl.
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Old 11-15-2012, 09:42 PM
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Quote:
Originally Posted by allansmith859 View Post
OK guys i went to the parts store and got the tool to do this. I hooked the gauge up and started. Oil pressure is at 50 but and there are 4 or 5 rockers I cant get oil to come out of. I took those push rods out and made sure they were cleaned out and I still cant get oil to come out of those rockers. The other rockers have good oil coming out. Is it ok to say that everything is good or is something wrong. Keep in mind I just pulled this engine out of my truck to change rear main seal and new gaskets so I wouldnt think anything is wrong. By the way its a sbc Need help asap, start new job tommorw
http://www.crankshaftcoalition.com/w...engine#Prelube is some info on priming in case this comes up in a search.

Don't sweat it if every rocker doesn't oil right away. The main thing is to have the filter full and the air out of the oil galleys (this can drain back out if it sits), and to verify there is good oil pressure (no galley plugs left out, etc.).
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