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Old 05-06-2010, 02:46 AM
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Locking down oil pump...

350 chevy... I am just curious what people do to lock down the oil pump pick-up tube or if they just slip it on and leave it. What is the best thing to do?

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Old 05-06-2010, 03:17 AM
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I either smear the tube with Green Loctite(stud and bearing mount) or put a small weld of brazing rod from tube to pump casting(remove the relief spring when brazing to keep from killing the temper in it).
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Old 05-06-2010, 05:31 AM
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I've drilled through the pump cover, threaded it (for a set-screw), assembled the pump, set the pickup depth and marked the tube through the set-screw hole, removed cover and "dimpled" the mark on the tube with a small drill bit (for the set-screw to hold the tube's position), cleaned everything up, assembled and installed (red-loctite the set-screw in place) . It's overkill, but for peace of mind, that's what I always did.
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Old 05-06-2010, 05:32 AM
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Use a MIG welder. One small spot of weld is all it takes. Doesn't overheat metal. Never had a failure.
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Old 05-06-2010, 05:39 AM
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I used one of these with success.

http://www.jegs.com/i/JEGS/555/23620...oductId=751362
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Old 05-06-2010, 05:42 AM
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^^Hey that's pretty neat. They never had those in my days...
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Old 05-06-2010, 05:51 AM
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meschnebly... that is pretty neat! I'm going to have to look into that.
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Old 05-06-2010, 06:44 AM
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Getting the pick up pressed all the way into the pump body can be easily done using a home made tool, shown below. This needs to be done regardless if the pick up will get a brace or not. If a brace is used, Loctite the hardware!

I made mine from a copper nipple. The hose clamp will hold the tube in the tool and makes it much easier to drive the pick up into the pump. I use green Loctite Sleeve Retainer #640 High Temperature on the cleaned parts.

Or a tap w/a TIG/MIG will work fine, just don't overheat the body or relief spring/piston when the welding is done. It's necessary to take the pump apart if you're going to stick weld or braze it, then check the surface of the pump to the cover for warpage. It's a good idea even if you use a MIG, etc.

The drawing is from "How to Rebuild Your SMALL-BLOCK CHEVY" by David Vizard, pp 107.



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Old 05-09-2010, 03:25 PM
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Quote:
Originally Posted by Caballerokid
350 chevy... I am just curious what people do to lock down the oil pump pick-up tube or if they just slip it on and leave it. What is the best thing to do?
Simplify, go get a Melling oil pump that uses a bolt on pick up like one of Ford's better ideas that didn't make it to Chevy. Problem solved once and for-all.

Competition's picture of the pick up is wrong. It's the pump again stupid, Competition are you listening. The Jegs pictures are correct. This gets around gadgets, glue, or brazing. Where you buy isn't my concern, I shop at both places and others, I spread my shopping out to keep those catalogs coming so I have paper out in the convenience now that Sears doesn't do catalogs any more.


http://www.competitionproducts.com/M...ctinfo/10552C/

http://www.competitionproducts.com/searchprods.asp Wrong picture shows pup not pick up

http://www.jegs.com/i/Melling/689/10552/10002/-1

http://www.jegs.com/webapp/wcs/store...Term=689-12557

Bogie
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Old 05-09-2010, 07:29 PM
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Quote:
Originally Posted by BOBCRMAN@aol.com
Use a MIG welder. One small spot of weld is all it takes. Doesn't overheat metal. Never had a failure.
This is the method I use. Never a problem.
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Old 05-09-2010, 07:49 PM
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I just bought a high volume pump with the pickup pre welded. Fit perfect.

Summit racing

Otherwise I just use a tool similar to the one shown above and tack it with the TIG. MIG is probably better however. Don't get it too hot. You don't need much weld.
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Old 05-13-2010, 06:09 PM
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Screw on pick up brace can and will crack and the tube can fall off.
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