Cadillac & LaSalle Club Discussion Forum

Cadillac & LaSalle Club Forums => Technical / Authenticity => Topic started by: dbzsjones on December 29, 2023, 01:18:45 PM

Title: 1961 390 oil pump drive shaft
Post by: dbzsjones on December 29, 2023, 01:18:45 PM
I'm rebuilding a 1961 390 and the shaft between the distributor and oil pump has gone missing.  Is this a standard GM part I can stll buy, or do I need to find a used one?  I'm not having any luck searching for a new one directly.  I greatly appreciate any insight on the best options for finding a replacement.
Title: Re: 1961 390 oil pump drive shaft
Post by: Clewisiii on December 29, 2023, 01:51:49 PM
Where are you located
Title: Re: 1961 390 oil pump drive shaft
Post by: Daryl Chesterman on December 29, 2023, 02:56:58 PM
There is one listed for sale on ebay, but it is expensive!!!


Daryl Chesterman
Title: Re: 1961 390 oil pump drive shaft
Post by: dbzsjones on December 29, 2023, 05:46:40 PM
Quote from: Clewisiii on December 29, 2023, 01:51:49 PMWhere are you located
I'm in Los Angeles atea
Title: Re: 1961 390 oil pump drive shaft
Post by: Clewisiii on December 29, 2023, 05:52:18 PM
I have one in my parts car. But I am in Michigan and it is cold and wet. If you would like it I will try to pull it out over the next couple of days.
Title: Re: 1961 390 oil pump drive shaft
Post by: Clewisiii on December 30, 2023, 04:07:06 PM
It took some beating. But I got my parts car distributor out.

I sprayed some penetrant in the hole, but I cannot find my large magnet wand. The little one is not strong enough to pull out the drive rod.
Title: Re: 1961 390 oil pump drive shaft
Post by: Clewisiii on January 01, 2024, 01:54:53 PM
From a 61 390IMG_20240101_135348150.jpg
Title: Re: 1961 390 oil pump drive shaft
Post by: Lexi on January 01, 2024, 04:25:40 PM
Have an extra here that I would part with, but will have to do some research to ensure is the correct one. Potential back up for you, if need be. Clay/Lexi
Title: Re: 1961 390 oil pump drive shaft
Post by: The Tassie Devil(le) on January 01, 2024, 07:10:02 PM
Having that piece out and easily accessible, would be the best time to craft the mechanical Priming device to rotate the pump.

When I made mine, I had the pump out, and it was easy to hammer the tool into the correct shape.   Using the rod as an anvil.

Inserting the Roll Pin stops the tool from getting caught on the end of the shaft, making it easier to remove following priming.   Plus, it is a good tool for aligning the oil pump with the bottom of the distributor when replacing said distributor.

Bruce. >:D
Title: Re: 1961 390 oil pump drive shaft
Post by: Clewisiii on January 04, 2024, 11:12:42 AM
This parts car has already given up a lot of parts. But I am happy when I find another one that someone can use.

I paid $400 for this at a ghetto garage sale in Lansing Michigan
Cost me $600 to get it home. The first part I took from it was the power steering pump when I broke the back cap on mine.

IMG_20240104_110854066.jpg