Oil Pump Extension Install

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May 23, 2023 | 03:30 PM

Countryside Cafe

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Oil Pump Extension Install

I went to prime the oil pump for the SBC I installed in 79 C3 and discovered I forgot to put the extension shaft in when I installed the oil pump. I can see the slot in the oil pump way-way down through the distributor hole. Can I install the ext shaft from the top through the distributor hole? Thx

May 23, 2023 | 03:41 PM

sunflower 1972

Melting Slicks

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From: Wauconda IL

Simple answer, no.

May 23, 2023 | 04:13 PM

Countryside Cafe

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Is it because the colar on the ext shaft around the base where it connects to the pump will not fit through the lower hole access to the pump?

May 23, 2023 | 04:16 PM

427Hotrod

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From: Corsicana, Tx

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Gotta drop the pan.

Good news is it's not hard to pull the pan on a C3.

JIM

May 23, 2023 | 05:05 PM

Countryside Cafe

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Thx Jim, So drop pan, pull pump, connect shaft to pump and re-install right? Can I drop pane without removing anything else?

May 23, 2023 | 06:00 PM

sunflower 1972

Melting Slicks

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From: Wauconda IL

Check this thread: https://www.corvetteforum.com/forums...n-removal.html

May 23, 2023 | 06:09 PM

Z0Tex

Pro

Joined: Aug 2009

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From: Temple, TX

Quote:

Originally Posted by Countryside Cafe

Thx Jim, So drop pan, pull pump, connect shaft to pump and re-install right? Can I drop pane without removing anything else?

You'll have to lower your steering linkage some. This is easily done by unbolting the idler arm from the passenger side of the frame (2 bolts/nuts). The linkage will drop down enough for you to get the pan out of the way.

May 23, 2023 | 06:12 PM

427Hotrod

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From: Corsicana, Tx

2020 C2 of the Year - Modified Winner

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2017 C2 of Year Finalist

Quote:

Originally Posted by Countryside Cafe

Thx Jim, So drop pan, pull pump, connect shaft to pump and re-install right? Can I drop pane without removing anything else?

Yep. You'll need to drop the steering linkage on one end that runs under the pan. As mentioned...idler arm is easiest or just separate it at the joint. Might have to pull starter to get to oil pan bolts.

JIM

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May 23, 2023 | 07:56 PM

HeadsU.P.

Le Mans Master

Joined: Aug 2017

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From: Cool Northern Michigan

Secret:
Use a skinny 3/8" drive with about a 10" ratchet extension.

Last edited by HeadsU.P.; May 23, 2023 at 08:50 PM.

May 23, 2023 | 09:21 PM

#10

Countryside Cafe

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I just came from the shop with that exact question. It looked like that was the best way and it was holding up the entire sterring linkage. Do I need to support it with a jack or will it hang and return to position easily. Thx

May 24, 2023 | 11:15 AM

#11

Jebbysan

Dr. Detroit

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From: New Braunfels Texas

Quote:

Originally Posted by Countryside Cafe

It can hang.....and it goes right back in the same spot.....

Jebby

May 24, 2023 | 11:27 AM

#12

leadfoot4

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Joined: May 2001

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From: Western NY

OP, did you get the HD pump drive shaft, the one with the metal collar, instead of the plastic one?

May 24, 2023 | 12:17 PM

#13

sunflower 1972

Melting Slicks

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From: Wauconda IL

Like this

May 24, 2023 | 01:51 PM

#14

Countryside Cafe

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Yes I did - thank you!

May 24, 2023 | 05:39 PM

#15

leadfoot4

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From: Western NY

Quote:

Originally Posted by sunflower 1972

Like this

That's the part, but it's half the price from Summit Racing.................

May 24, 2023 | 08:25 PM

#16

Countryside Cafe

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Yes - that is the one I got and just now put in. Thx Now to put it all back together and prime the motor like I started to do when I realized the dumb mistake I made. lol

May 25, 2023 | 07:38 AM

#17

leadfoot4

Team Owner

Joined: May 2001

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From: Western NY

Quote:

Originally Posted by Countryside Cafe

Yes - that is the one I got and just now put in. Thx Now to put it all back together and prime the motor like I started to do when I realized the dumb mistake I made. lol

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