T O P I C R E V I E W
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90hogg
Member # 5313
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posted
Engine has less than 3k but Im on my third oil pump. After about 1000 miles it loses pressure at idle. Hit the gas and it goes up and back down. Ive had 2 melling hv pumps and now the fms one. All did the same thing. Please help.
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SilverLX351
Member # 3207
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posted
sounds like an internal problem, like bearings maybe...I would pull the motor and check it out.
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90hogg
Member # 5313
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posted
Could this have been a bad install? Dss 347 kit bored 40 in fms block.
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SilverLX351
Member # 3207
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posted
How does the oil look?? is there any metal in it, or at the bottom of the pan?
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JohnB
Member # 969
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posted
After 3 pumps, I'd say it's not a pump.
Pull the engine, check the #5 main and #4/#8 rod bearings. If they look good, pull the cam and check those bearings. What were the clearances when the engine was assembled? Please say someone checked them...and didn't just put it together...
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90hogg
Member # 5313
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posted
I will check the oil and ask the installer if he checked the clearances. Thanx for the input thus far.
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90hogg
Member # 5313
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posted
Nothing in the oil and the installer said he clearanced eveything. May have to pull the engine and check those bearings.
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SilverLX351
Member # 3207
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posted
quote: Originally posted by 90hogg: May have to pull the engine and check those bearings.
Thats what I would do, GOODLUCK [ May 24, 2005, 09:44 AM: Message edited by: SilverLX351 ]
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CDT
Member # 5004
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posted
what are the pressures your getting??? Are you sure about the galley pulg at the back of the lifter valley?
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HungryHippo
Member # 537
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posted
do you have a hardened oil pump shaft? maybe something is binding and breaking your oil pumps
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93lx342
Member # 1793
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posted
oil pump drive shaft may be to long forcing it to grind into baseplate of pump which will cause the pump to work less efficiently.
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90hogg
Member # 5313
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posted
I do have an ARP hardened shaft. Should I change it because it may be too long?
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93lx342
Member # 1793
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posted
just put distributor in and look at where it meets the block.if it is not seating all the way the shaft may be to long and causing the problem.
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90hogg
Member # 5313
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posted
Pulled the k-member and the pan. Pan had metal bits in it. The #4 and #8 rod bearings were damaged. Im going to replace the pump and the rod and main bearings. Should this get rid of my problem?
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TRIXSNK
Member # 2844
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posted
quote: Originally posted by JohnB: After 3 pumps, I'd say it's not a pump.
Pull the engine, check the #5 main and #4/#8 rod bearings.
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getjobdone
Member # 4666
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posted
quote: Originally posted by TRIXSNK: quote: Originally posted by JohnB: After 3 pumps, I'd say it's not a pump.
Pull the engine, check the #5 main and #4/#8 rod bearings.
i agree
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90hogg
Member # 5313
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posted
The number 3 main bearing was shot and the number 4/8 rod bearings were damaged, crank also had damage. The oil pump also had shavings from the bearings inside it. Can anyone tell me what caused this. And what to do so this problem is resolved. My installer replaced the pump, bearings and the crank with new ones. I just dont want to go through this Sh*t again.
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JohnB
Member # 969
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posted
What caused it? 1 of 3 things... 1. Your installer did not check thrust clearances or crank clearances. 2. You bought REALLY CHEAP bearings... or 3. You beat the beeee-jeeeezus outta it.
I hope he completely tore down that block and hot-tanked it, as well as replacing the cam bearings. In not, you're asking for trouble.
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