Oil pump recommendation

[Lipdog]

As I mentioned in a prior post, the oil pump on my '48 Chief (aluminum) is wet sumping something awful and I don't want to take a chance on a weak and worn pump. I will replace it. There are several variants on the market. Kiwi's has a high output modification and is tested. Starklite sells high capacity gears but I'm not sure if they are in the new pump he sells. And Greer always sells good stuff. Does anyone have any recommendations between these (or others), and why? PM me if necessary. Thanks!

[tfburke3]

Because its standing wet sumping that doesnt necessarily indicate a weak or worn pump.If it was wet sumping while running that could indicate a worn return pump.
In my opinion high output is not necessary.These pumps supply and return very well.The wet sumping in storage is a design issue with no seal on the pump shaft and removal of the ball valve.A new pump without the ball valve will do the same.I personally believe the cast iron pumps are better.They have bigger return gears,cast iron housing instead of aluminum,no tiny keys to shear,and with a good fitting plunger very little wet sumping.
Sorry I have no experience with modified or aftermarket systems.
Tom

[T. Cotten]

Don't forget "tuning" the scraper, Folks!

....Cotten
PS: Nah, just throw money at it.

[Lipdog]

Are there any posts you can point me to on tuning the scraper?

[PaulCDF]

I don't know, but I found this on Professor Jim Moshers Performance Indian cite:

http://performanceindian.com/Oil%20P...0Scrapers.html

Oil Pump & Scrapers

"A "scraper" as used in the 1947 Chief was a good upgrade from the original sump casting used from 1932
through early 1947. The scraper is a flat 1/4" plate with a contoured blade behind it that sits very close
to the outer edge of the rotating flywheels. It's job is to "scrape" off any excess oil from the flywheels
when the motor is running. It doesn't actually scrape the flywheels, but rather sits about .015"-.020" off
the edge (just enough to capture excess oil). The scraper blade is cocked at an angle, which helps to direct
the oil now sitting in the bottom of the crankcase toward an oil fitting that the sump tube connects to.
It is a simple system that works really well. The scraper is not restrictive, so an oil pump that has sat
for a length of time has no trouble picking up oil to return to the oil tank. I use a 1947 Scraper on ALL
bottom ends for Scouts, and Chiefs prior to 1947. In 1948, the Chief had this scraper cast into the cases,
and there is only the threaded hole for the sump line fitting. To install a scraper to an older Chief, or
Scout, there is a little trimming needed to the sump hole, and at the very bottom of the case joint, so the
scraper can make it over to the left side wheel. Be very careful to not trim out too much metal, or the
scraper gasket might leak!"

As your Chief is a 1948 (CDH) and as per cited expert "In 1948, the Chief had this scraper cast into the cases"
I would wonder/question IF there is a scraper for you to "tune". As I stated at the start I don't know but I am
confident that the Senior members here do.

[PaulCDF]

Or perhaps the question is better stated:
Can a casted scraper be "tuned" without out splitting the cases?

[T. Cotten]

Or perhaps the question is better stated:
Can a casted scraper be "tuned" without out splitting the cases?

Good question, Paul!

Better add 'safely', before somebody suggests JBWeld.

....Cotten
PS: My test bench is up for trade.
I'll never use it again.