How to prime oil pump 68-70 rocket 350

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Old Feb 14, 2022 | 12:43 PM
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How to prime oil pump 68-70 rocket 350

I have to prime my engine to try and shoot out a nut I dropped in an oil gallery. I watched a video and read a bunch of comments saying to use a 5/16 socket on the end of an extension right down onto the oil pump. My problem is this socket, or a 1/4 inch drive extension, will not fit through the hole in the base that the distributor sits on in the block (see picture, its the smallest hole im talking about). I tried a 5 inch 5/16 drive socket but even that is not long enough, the drive shaft on the distributor is 7 inches. Am I missing something or is my engine different from everyone that is saying to use a socket? Thanks​​​​​​​
Old Feb 14, 2022 | 01:24 PM
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You are missing the oil pump driveshaft. It frequently gets stuck in the distributor drive gear. Drop that in first, then put the 5/16" socket on it. Better yet, get a 5/16" hex Ford 351 oil pump tool, about $8 on Amazon. That way you won't risk dropping the 5/16 socket into the motor.
Old Feb 14, 2022 | 01:31 PM
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Ohh okay, so the long shaft that’s stuck in the distributor shouldn’t have came out…how do I safely remove it from the distributor?
Old Feb 14, 2022 | 01:35 PM
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Originally Posted by oldscutlass74
Ohh okay, so the long shaft that’s stuck in the distributor shouldn’t have came out…how do I safely remove it from the distributor?
Depends on how tightly it's wedged in the drive gear. I've had to clamp the driveshaft in a vice and tap on the distributor drive gear with a rubber mallet to get it off. Carefully file any burrs off of the driveshaft and clean all the chips off before dropping it back in.
Old Feb 14, 2022 | 02:23 PM
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you probably know but just a reminder the olds oil pump turns counterclockwise. The oil pump drive shaft also has a small retainer on it that would prevent it from coming out with the distributor it could have fallen off or been removed 40 years ago. i would at least peek down that hole with a light .
Old Feb 14, 2022 | 02:27 PM
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Originally Posted by deadeyejedi
you probably know but just a reminder the olds oil pump turns counterclockwise. The oil pump drive shaft also has a small retainer on it that would prevent it from coming out with the distributor it could have fallen off or been removed 40 years ago. i would at least peek down that hole with a light .
The ring is in the bottom of the oil pan. It gets pulled off as the distributor with wedged shaft comes out of the block. All that ring does is hold the shaft in the block before the distributor gets put in.
Old Feb 14, 2022 | 04:08 PM
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Tape all of the tools together to prevent a socket from falling off an extension into the...don't even want to say it.
Old Feb 14, 2022 | 04:15 PM
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Originally Posted by Sugar Bear
Tape all of the tools together to prevent a socket from falling off an extension into the...don't even want to say it.
For $8, I just use one of these.

Amazon Amazon
Old Feb 14, 2022 | 04:35 PM
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Originally Posted by joe_padavano
^^^ Works like a champ! Remember: CCW rotation.
Old Feb 17, 2022 | 05:24 PM
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Originally Posted by joe_padavano
this will work even though it says it’s for a ford?
Old Feb 17, 2022 | 05:39 PM
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Originally Posted by oldscutlass74
this will work even though it says it’s for a ford?
The tool is a 5/16" hex socket on a shaft. The tool has no idea what motor it is inserted into. Note that the disk won't fit the Olds distributor hole in the block, but you don't really need it anyway. Just chuck it up in a drill and spin it (counterclockwise).
Old Feb 17, 2022 | 06:15 PM
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Originally Posted by joe_padavano
The tool is a 5/16" hex socket on a shaft. The tool has no idea what motor it is inserted into. Note that the disk won't fit the Olds distributor hole in the block, but you don't really need it anyway. Just chuck it up in a drill and spin it (counterclockwise).

great thanks for the help!
Old Feb 17, 2022 | 06:16 PM
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Thanks for the help everyone!
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