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 Post subject: Oil Pump
PostPosted: Wed Jul 06, 2022 2:48 pm 
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4 BBL ''Hyper-Pak''
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Joined: Sun May 07, 2017 8:20 am
Posts: 28
Location: Frisco, Texas
Car Model: 1962 Dodge Dart 330 Sedan
How do you determine if your oil pump is good? Rebuilding my 1962 Slant 6 and ordered a replacement pump (which is incorrect) so it got me to thinking, do I use the existing pump? I have cleaned it up and serviced the relief valve. It turns freely, it has a small amount of aft-fore play but seems tight. Before I look for another pump, wondering if it makes sense to stay with the original.

Any ideas on where to locate a dip stick tube?

It is getting harder to find parts!

gpk1961


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 Post subject: Re: Oil Pump
PostPosted: Wed Jul 06, 2022 7:11 pm 
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EFI Slant 6

Joined: Mon May 26, 2014 4:02 pm
Posts: 414
Location: Vermont
Car Model: Slant Six M37
I would vote for using the original pump. In the past people have had problems with replacement pumps failing due to the oil pump gear ether being too soft, or something like that.

It was/is a common enough problem that I would swap my old gear onto a new pump when and if the original pump was worn enough to need replacement.

Others may have more insight, and better advice.


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 Post subject: Re: Oil Pump
PostPosted: Sun Jul 17, 2022 3:42 pm 
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EFI Slant 6

Joined: Thu Apr 18, 2019 7:57 am
Posts: 318
Location: Lawrenceville, GA
Car Model: 1966 Dodge Dart
The FSM has a method that uses feeler gauges to check the pump for wear.

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Matt Cramer
1966 Dodge Dart turbo / EFI project


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 Post subject: Re: Oil Pump
PostPosted: Mon Jul 18, 2022 6:22 am 
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Board Sponsor & Moderator
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 16451
Location: Blacksburg, VA
Car Model:
If the old pump feels good and it not too gunked up, I would use that. You stand a MUCH smaller chance of wiping out the oilpump gear too. I almost always reuse my old pumps and they work fine. I open up the relief valve and clean that and add about 0.060" of washers inside the cap (same OD as the spring) to raise the (higher RPM) ultimate pressure .

Lou

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