• Hello there guest and Welcome to The #1 Classic Mustang forum!
    To gain full access you must Register. Registration is free and it takes only a few moments to complete.
    Already a member? Login here then!

Priming Oil pump

D

Daves69Coupe

Member
Im going to be attempting to get my engine running soon, once my last pulley comes for the PS pump. From what i understand I should prime the oil pump before attempting to start. What can I do to prime the pump. As i understand it I need to remove the distributor and then turn the pump with a drill and fitting in the distributor hole. What type of fitting do I need to do this?
 
It's a tool not a fitting. It's a long, straight length of hex shaft (think Allen wrench). Chuck it in your drill and it goes into the top of the oil pump in place of the oil pump drive shaft. Make sure to spin it the right direction (same as the distributor rotor)!
 
I use this tool from summit... http://www.summitracing.com/parts/SUM-901011/

The hex shaft that horseplay speaks of is usually preinstalled on the oil pump and comes up to meet the distributor. Mine has a clip on it that keeps it from coming out of the hole. The tool above connects to the hex shaft that connects to the oil pump...

IIRC, it's basically a 5/16" socket at the distrubutor end... you could technically make your own using a socket and long extension, but risk losing the socket in the engine if it's not firmly attached to the extension. Welding the two to eachother would be wise if you go that route. For my small block chebby, I just reworked a crappy old distributor instead of buying another tool.
 
"Horseplay" said:
It's a tool not a fitting. It's a long, straight length of hex shaft (think Allen wrench). Chuck it in your drill and it goes into the top of the oil pump in place of the oil pump drive shaft. Make sure to spin it the right direction (same as the distributor rotor)!
Click to expand...

which direction should it be spun then, if im standing in front of the engine?
 
"stangg" said:
I use this tool from summit... http://www.summitracing.com/parts/SUM-901011/

The hex shaft that horseplay speaks of is usually preinstalled on the oil pump and comes up to meet the distributor. Mine has a clip on it that keeps it from coming out of the hole. The tool above connects to the hex shaft that connects to the oil pump...

IIRC, it's basically a 5/16" socket at the distrubutor end... you could technically make your own using a socket and long extension, but risk losing the socket in the engine if it's not firmly attached to the extension. Welding the two to eachother would be wise if you go that route. For my small block chebby, I just reworked a crappy old distributor instead of buying another tool.
Click to expand...

uh, yeah. What he said! Come to think of it that little "e" clip that keeps the drive shaft in place doesn't always do the trick. You need to be very careful that you don't pull the drive shaft up out of the pump too far when removing the tool (which is basically just an extension of the shaft). I've pulled it out and had it drop out of place on more than one occasion. Then you get to go fishing. Not fun.
 
"Daves69Coupe" said:
which direction should it be spun then, if im standing in front of the engine?
Click to expand...
counter-clockwise (but someone please confirm as I'm sitting at my desk right now and I've already shown how well my mind works sometimes!).
 
I remember it being CCW too... my buddy just used the summit tool to prime his 427 and pretty sure that was CCW as well.
 
Good luck with that if you've got a light duty drill, mine spun until oil got in the pump and slowed to a stop. I switched to a speed wrench and continued to prime by hand, I had the valve covers off and kept at it till I saw oil coming out thru the pushrods.

If you do this, make sure to use a locking extension, or duct tape to secure the socket to what ever tool you use. Sure would be a bummer if the socket came loose and fell into the engine.
 
I have a Ford 5/16" oil pump priming shaft, which use to belong to our one and only Johnpro. I'd be happy to loan it to you. No socket is required for the 5/16" is part of the shaft which is 9" long.

Not sure if this is a concern but the shaft diameter is exactly 1/2".

aefde9bb-3081-9417.jpg


aefde9bb-30f9-a679.jpg
 
dont buy a tool. Any screw gun will do. Leave the oil pump shaft in the pump.



These

1.jpg


and these happen to be the same size as the oil pump shaft.

images


so take one of these

5907.jpg


put it into one of these
1160754657851_pk2_7.jpg


put the gun in reverse, put it onto the sharft and drill away. In no time you will see oil comming from every one of your lifters, push rods and rockers.
 
Last edited by a moderator:
i already bought a priming tool. Seems like the best way to go without having a chance of losing a bit or something down in the engine. Plus for $12 its a good tool to have. Another excuse to add a tool to the collection. Thanks for everyones help tho, much appreciated.
 
You must log in or register to reply here.
Back
Top