Advice? Oil Pump and Carrier Bearing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MrClean · 10-01-2010, 04:47 PM

Replacing my oil pump and carrier bearing on my 72 350 this Saturday morning... anything I should look out for? tips? warnings?

**El Jay** · 10-01-2010, 05:40 PM

On the carrier bearing---take it to a reputable drive shaft shop in your area, rather than taking a chance on munging up the drive shaft.

On the oil pump--- I always set the pick up WAY to low & then use the oil pan to push it into place. Then I push the pick up tube up about another 1/2", or so, and tack the tube to the pump using nickel welding rod.

But that's just me.

hayhauler71 · 10-01-2010, 06:38 PM

buy a good bearing like this http://www.iedls.com/Center-Support-...Difference.asp so you will never have to do it again

llowlife · 10-01-2010, 07:33 PM

Oil pump? I've rebuilt my own with suitable mods for over 20 years with many many racing motors involved. Melling has gone to crap in MHO, I prefer to redo them as they should have been done from the factory but the machining costs would drive up the price. A good place to start (its a little old but relevant) is Smokey Yunick's mods. Unless you are dealing with a total meltdown piece. I have nearly 5K in my current motor and guess whats the only used piece in the motor? Yep Oil pump.... I run 3/8-1/2" or so away from the bottom of the pan. Never used El Jay's technique but seems like it would work well. Needs to be welded on but make sure you have removed the pressure spring. I used to block the bypass but don't do that to my street motors anymore. I don't run a high volume pump...never have never will. Chevy only needs 10psi per 1k rpm. Good little oiling system. Use Chevy spring Number P/N 3848911. If you do the mods correctly you will increase reliability and reduce power consumption and spark scatter among other things. YOu will have a pump that I have never seen from the factory.

**El Jay** · 10-01-2010, 11:22 PM

It doesn't take a whole lot of weld; maybe 3/8"-1/2", just enough to make sure the pick up tube won't vibrate out of the pump housing.
That nickel rod flows like butter.

10-01-2010, 04:47 PM	#1
MrClean I'LL TRY TO FIX IT! Join Date: Oct 2007 Location: Santa Maria, CA Posts: 108	Advice? Oil Pump and Carrier Bearing Replacing my oil pump and carrier bearing on my 72 350 this Saturday morning... anything I should look out for? tips? warnings? __________________ -- Jorge -- 1972 Custom/10 LWB 350 My Build

10-01-2010, 05:40 PM	#2
El Jay Gone to greener pastures Join Date: May 2007 Location: Gateway to the Delta Posts: 7,354	Re: Advice? Oil Pump and Carrier Bearing On the carrier bearing---take it to a reputable drive shaft shop in your area, rather than taking a chance on munging up the drive shaft. On the oil pump--- I always set the pick up WAY to low & then use the oil pan to push it into place. Then I push the pick up tube up about another 1/2", or so, and tack the tube to the pump using nickel welding rod. But that's just me. __________________ '69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck

10-01-2010, 06:38 PM	#3
hayhauler71 Registered User Join Date: Aug 2009 Location: St. Paul MN. Posts: 1,996	Re: Advice? Oil Pump and Carrier Bearing buy a good bearing like this http://www.iedls.com/Center-Support-...Difference.asp so you will never have to do it again __________________ Fuzzy

10-01-2010, 07:33 PM	#4
llowlife Registered User Join Date: Jan 2010 Location: Elgin Mn Posts: 112	Re: Advice? Oil Pump and Carrier Bearing Oil pump? I've rebuilt my own with suitable mods for over 20 years with many many racing motors involved. Melling has gone to crap in MHO, I prefer to redo them as they should have been done from the factory but the machining costs would drive up the price. A good place to start (its a little old but relevant) is Smokey Yunick's mods. Unless you are dealing with a total meltdown piece. I have nearly 5K in my current motor and guess whats the only used piece in the motor? Yep Oil pump.... I run 3/8-1/2" or so away from the bottom of the pan. Never used El Jay's technique but seems like it would work well. Needs to be welded on but make sure you have removed the pressure spring. I used to block the bypass but don't do that to my street motors anymore. I don't run a high volume pump...never have never will. Chevy only needs 10psi per 1k rpm. Good little oiling system. Use Chevy spring Number P/N 3848911. If you do the mods correctly you will increase reliability and reduce power consumption and spark scatter among other things. YOu will have a pump that I have never seen from the factory. __________________ In the beginning of a change, the patriot is a scarce man, brave hated and scorned. When his cause succeeds however, the timid join him , for then it costs nothing to be a patriot. I am a revolutionary...so my son can be a farmer...so his son can be a poet. If there must be trouble, let it be in my day, so my child may have peace... 72 short step w/ 388 /4l80e/ and 3.08 gears. Last edited by llowlife; 10-01-2010 at 07:34 PM.

10-01-2010, 11:22 PM	#5
El Jay Gone to greener pastures Join Date: May 2007 Location: Gateway to the Delta Posts: 7,354	Re: Advice? Oil Pump and Carrier Bearing It doesn't take a whole lot of weld; maybe 3/8"-1/2", just enough to make sure the pick up tube won't vibrate out of the pump housing. That nickel rod flows like butter. __________________ '69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck

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