no oil prssure in new rebuild

hey i just finnished my winter project of building a new 460 i tried priming the oil system but i just cant get any oil pressure. im using a 5/16 socket and a half in. drill to prime it. i let the drill run for a min or so and tried rotating the engine 90 degrees (someone suggested that). then tring the drill again. (the drill is spinning counterclockwise.) i took the oil filter off and spun the pump and im getting plenty of flow into the filter but thats it. the oil pressure guage is mechanical and i have the valve covers off and im not getting any oil through the push rods. please any sugestions would be great!

 

what is the rpm of the drill?
may not be getting enough spin on the pump to bring the psi up to around 20.may just be enough to fill the filter and crank bearings.
or its turning the wrong way.
just some thoughts.

 

You'll feel the load on the drill when the pump is working. Are the galley plugs
installed?

 

If you were turning it the wrong way you'd hear the bubbles as the air was being pumped through the submerged pick up. There is a problem somewhere else

 

Instructions that comes with Ford crate motors:

7. Remove distributor.
8. Remove valve covers.
9. Install mechanical oil pressure gauge.
10. Use appropriate priming tool or:
a. 1/4” deep well socket for 302
b. 5/16” deep well socket for 351 and 460
11. Rotate priming tool counter clockwise using a 1/2” electric drill.
12. Observe oil pressure on mechanical gauge.
13. Continue to prime until oil is visible in the rocker arms. This may require rotating the crankshaft to obtain oil flow through all the rocker arms.
14. Check for external leaks.
15. Remove priming tool.
16. Re-install valve covers.

 

If your pump is not priming, pack it with vasoline. That's what I did when I had the same problem and it worked. Don't forget to pull the spark plugs out so the motor can spin faster.

 

Are you getting any oil flow out of the lifters? When priming chevys it's pretty common that I can't get oil up the pushrods. But when I see it start weeping from all the lifters it's good to go. I just manually apply oil to the rockers and start the *****.

Is the drill loading down? A half inch drill moving room temp 30W is hard to hold with one hand, you'll know if it's actually building pressure from that alone.

Oh, and ever have one refuse to prime? Try reversing the drill for a 5 second burst, then try again. I've never packed an oil pump with grease in my life.

good luck

 

1.Your Pump could be losing prime.
2.Drill not driving the pump properly.
3.Pickup problems.
4.Blockage or leakage problem.

If your getting oil out the oilfilter housing....its pumping some, maybe not right. as you've been told....put your oil filter on.....pull your valvecovers off....and pull the oil pressure fitting out of the block.
Hook your drill up, spin it.....you should feel the drill starting to labor when the pump starts pumping. Look at you oil pressure fitting hole, after a few seconds....you should have oil squirting from the hole.....the about 3 or 4 seconds later, you should have a little oil coming thru the push rods up on top of your valves.

If not, start back tracking.......somethings either spinning the pump insecurely (socket spinning on driveshaft or ratcheting, pump driveshaft broke, gear spinning on shaft, Loose pickup tube, etc.)
After you know the pump is turning, there is pressure....now where its going is what ya gotta find. Are all your oil p***age plugs in? Have a buddy spin the pump while you look around looking for oil with the intake off.
If you can't find anything..... something serious is wrong, your gonna have to pull the pan anyway.....pack your oil pump with a combo of light ***embly grease like lubriplate White and some 30 wt. mixed 1/2 and 1/2 in a small plastic cup. Pull your oil pump plate and pour a little of this mixture in it....then replace your plate.

Now....if you have oil pumping....but your guage doesn't read....crack your oil pressure line on the back of the guage and bleed the air outta it......till you get oil...........

Take your time.....don't throw wrenches.....could be something as simple as a drive not engaging the oil pump all the way.................Better to catch it now before you start the engine. Usually.....I prime my engine while its still on the stand......just for this reason alone................................................................................................................

 

pull the intake and run the drill again

 

HEEEY, are you doing this with a slow turning 1/2 drill??????? If so, thats probably the problem. Get a 3/8 drill with a speed of at least 1200 RPM and then try it..........

 

you got the right oil filter??
never forgot when some kid did a Mack water filter on a engine install I was doing and painted over it took awhile to figure that one

 

Yea....I've had something like that happen too.....I always prime mine before I put it in......if I don't run it in for at least an hour........cam breaking period at least..........

 

Sounds like you left a galley plug out. 460's is a simple system to work with. In the top of the block under the intake there is a cast stand that has 2 allen plugs-Make sure there in other wise you have no top lifter/push rod oiling and no oil pressure. The other plugs behind the timing chain are also main oil galleys. Most of the other things seem to be well covered .

 

Thats my next thought..............

 

I always pack the pump with either lithium grease or even ***embly lube. It helps draw oil in via a vacuum effect. Fill your oil filter full of oil too, the can cavitate just like a pump that's dry.

 

check all oil galley plugs and make sure they are there, sometimes in the back of the motor there is an inner and out plug if that makes sense

jeff

 

If you have oil getting to the filter, your oil pump is pumping. Pull the intake manifold.
The 429/460 engine has two 1/4" pipe plugs in a tall casting above the camshaft toward the rear. This is the lifter galley cross over. These plugs should have been removed for hot tank cleaning. Someone might have forgot to re-install them.
You can pull off the fuel pump and look in there also.
If the front oil galley plugs are missing you will get a bath of 10W-40
Pro-Formance Specialties
1115 East Main st.
Rochester, NY 14609
585-288-1499
Full Service engine Machine shop

 

**** i think its the oil galley plugs under the intake mainifold in the front of the block. i dont remember if i put them in. when installing the plugs should i use any sort of gasket maker or anything on the plugs or just put them in? thanks for all the help guys

 

I use that permatex that comes in the little white tube, can't remember the number, it's a really good thread sealer. it'll say for sealing tapered pipe threads threads on the package, whatever you do don't use teflon tape, stuff is for plumbers, is more trouble then it's worth.

 

Liquid teflon >>>>.

 

i'll go dig a tube out of my tool bag in a minute, it sets up also. it's so good we use it on airplane oil filter adaptors

 

lock***e 567, great stuff, it comes in a tiny tube,less then an ounce, but it doesn't take much,

 

I just remembered I have three tubes of that stuff in my bathroom, wonder where I put the toothpaste?