New oil pump locked up

OneBad91 · 06-01-2004, 09:56 AM

I finally got my new motor running by putting the stock injectors and mass air sensor back in and getting the timing set right. I was out driving around and i didn't even get on it and I saw that I didn't have any oil pressure. I pulled the motor back out to find my oil pump locked up and i broke the oil pump shaft. I bought a brand new melling high volume oil and I didn't even put 50 miles on it. Any Ideas?

Jeff Chambers · 06-01-2004, 12:33 PM

An oil pump should NEVER be installed without fully disassembling it, checking it out and cleaning it thoroughly. Some will refer to this as 'blue-printing' the pump. You wouldn't believe some of the crap that I've seen in brand new pumps out of the box.

We always disassemble it, clean it and break all sharp edges/burrs, check the action of the bypass valve, check rotor play, cover clearances, etc. Its literally the heart that pumps the life giving blood throughout your engine.

Ieatcamaros · 06-01-2004, 06:28 PM

Quote:

check the action of the bypass valve

Especially this cause if it gets stuck, it could blow the filter off. I have seen this. Ugly site!

06-01-2004, 09:56 AM	#1
OneBad91 Registered Member Join Date: Apr 2002 Location: York, PA Posts: 58	New oil pump locked up I finally got my new motor running by putting the stock injectors and mass air sensor back in and getting the timing set right. I was out driving around and i didn't even get on it and I saw that I didn't have any oil pressure. I pulled the motor back out to find my oil pump locked up and i broke the oil pump shaft. I bought a brand new melling high volume oil and I didn't even put 50 miles on it. Any Ideas? __________________ 90 lx notchback:4cyl to 5.0 conversion, Mac 1 3/4 long tube headers, 3 inch pro chamber, al. radiatior, 3:73 gears, underdrive pulleys, GT-40 intake with 1" spacer, cold air intake, electric fan, pro 5.0 shifter, smog pump delete, a/c delete, windage tray, flowmasters, turn downs, subframe connectors, 5-lug conversion. Pro Tru forged pistions, Roush 200 heads, z303 cam, 30# injectors, 70 mm t-body, 255 lph fuel pump, 1.6 roller rockers, 7 qt. pan, high volume oil pump, fuel pressure regulator, MSD 6AL, MSD blaster coil, MSD pro billet distributer, 75mm mass air, and a hell of alot of money.

06-01-2004, 12:33 PM	#2
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	An oil pump should NEVER be installed without fully disassembling it, checking it out and cleaning it thoroughly. Some will refer to this as 'blue-printing' the pump. You wouldn't believe some of the crap that I've seen in brand new pumps out of the box. We always disassemble it, clean it and break all sharp edges/burrs, check the action of the bypass valve, check rotor play, cover clearances, etc. Its literally the heart that pumps the life giving blood throughout your engine. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

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