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#1
05-27-2009, 12:50 PM
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OIL PUMP SHAFT
I got a suprise the other day, I was driving my gto doing 60 mph going down the road and my lifters started making all kind of noise, looked at the oil pressure gauge BIG FAT 0. I shut it down quick. Towed it home pulled the dist and the oil pump shaft spins like a top. Tear down time, they do make a better shaft I hope.
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#2
05-27-2009, 01:12 PM
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Melling IS-54A...
Jim |
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#3
05-27-2009, 04:29 PM
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The current issue of PONTIAC ENTHUSIAST (August 2009) features a writeup of the 462 Stroker engine that will be given away at the Carlisle All-GM Nationals. It is being built by Nitemare Performance and it shows two pictures on page 41 of their new oil pump drive shaft. I have only seen the pictures so I have no comments to make about it except that it looks like a really nice piece. Thought I'd share this for those who haven't seen the magazine.
Jim
__________________
"Never try to teach a pig to sing. It's a waste of time and it annoys the pig" |
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#4
05-27-2009, 05:15 PM
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I've posted my thoughts on this already,do a search if you wanna know.
This is one of those deals that always tends to get debated quite a bit. I'm not up for that right now... BP. |
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#5
05-27-2009, 05:39 PM
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Try these.I have had excellent service in my race engine.
http://cgi.ebay.com/ebaymotors/PONTI...1%7C240%3A1318 |
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#6
05-27-2009, 05:43 PM
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I'm with ^^^^ him.
Call Doug @ POP,he's gots the stuff. 
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#7
05-28-2009, 06:19 AM
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A free spinning shaft could also be due to the check ball nut backing out and releasing the ball.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#8
05-28-2009, 01:26 PM
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that nitemare OP shaft looks very, very similar, to the one nunzi used to sell years ago but no longer does now.
__________________
costs too much |
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#9
05-28-2009, 01:39 PM
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Er ah , my experience says the oilpump shaft is the "Idiot Light" for a headgasket breech.
Verify Headgasket via Compression test, and look inside each valve cover for evidence of anti-freeze film/gunk. ================================================== =========== My Main & Rod bearings were pretty good after the oil pump siezed on shaft varnish softened by anti-freeze. |
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#10
05-29-2009, 02:14 AM
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Some of HIS's posts make sense; that one does not...
__________________
Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons? ... or has built a record breaking DOHC hemi four cylinder Pontiac? ... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967) |
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#11
05-29-2009, 02:41 AM
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One question does come to mind, though. Is the oil pump relief valve blocked off? This can cause the shaft to shear, due to hydraulic lock or high oil pressure when the engine is started cold. High weight oil and cold weather aggravate the problem.
It might not fail when the high pressure occurs, but the damage can be done and the failure happen on down the line.
__________________
Rich The real democratic American idea is, not that every man shall be on a level with every other man, but that every man shall have liberty to be what God made him, without hindrance. Henry Ward Beecher "The problem with socialism is that you eventually run out of other people's money." Margaret Thatcher |
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