5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

oil pump

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Old 01-04-2006, 03:15 PM
  #1  
hotstang97gt
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Default oil pump

is there any way you can tell by looking if your oil pump is broken? about a month or so ago i took my car off the road because i had no oil pressure and it was making a LOUD taping noise, so i took the engine out and i have it on a stand now. when i took the oil pan off every thing looked fine to me but im no machanic. is the no oil pressure the oil pump? with the ticking noise i thought i spun a bearing but i dont see any metal shavings at all. what else could be making the taping noise? could it be a bent push rod?
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Old 01-04-2006, 03:52 PM
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TMC
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Default RE: oil pump

Take the bottom plate off the oil pump and see if you can turn the pump by hand with the oil pump drive shaft while watching the gears inside turn. That will tell you if they gears or anything is broken with the pump.
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Old 01-04-2006, 06:10 PM
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Default RE: oil pump

i couldent turn the shaft but i could turn the gears. i took off the pump and noticed that the shaft's end had a hex head, but where the shaft goes into the pump i noticed it isnt hexed shaped. is that the way it is or is it striped out?
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Old 01-04-2006, 06:30 PM
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Tims 88GT
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Default RE: oil pump

is the end that goes into the pump round? because if so then its your oil pump shaft that would be a lil weired, and hard to do. if that is the case get a new pump and shaft, also while you are their put new rod and main berings in. get a melling oil pump. a oem oil pumo shaft is fine, and get clevite 77 bearings.
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Old 01-04-2006, 06:53 PM
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Default RE: oil pump

on the pump its round, i alsoi found a new problem it looks like a ding on the top outer edge of the cylinder wall they all have this besides the 2 front that have a lump. is that alright or is something wrong?
pic 1- bottom of pump where shaft goes in
pic 2- top of shaft
pic 3-pump with plate off
pic 4- my new problem
edit: opps forgot to upload the pics


[IMG]local://upfiles/19439/61498481C69C4311964E2FF63B1AF465.jpg[/IMG]
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Old 01-04-2006, 07:03 PM
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Default RE: oil pump

top of shaft

[IMG]local://upfiles/19439/13158C65F008432A8B4C6A929BE9AA65.jpg[/IMG]
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Old 01-04-2006, 07:04 PM
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Default RE: oil pump

pump w/plate off


[IMG]local://upfiles/19439/469D259DED9544C2A97E5A37446A07CA.jpg[/IMG]
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Old 01-04-2006, 07:05 PM
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Default RE: oil pump

new problem


[IMG]local://upfiles/19439/7135CFCFCF9641DC80841100D9E2976B.jpg[/IMG]
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Old 01-05-2006, 12:06 AM
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silver91gt
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Default RE: oil pump

the shaft should be hexagonal, and same as the pump.
something went wrong if it got rounded.
did you prime the pump before installing it and starting the engine?
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Old 01-05-2006, 12:18 AM
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Default RE: oil pump


ORIGINAL: Tims 88GT

is the end that goes into the pump round? because if so then its your oil pump shaft that would be a lil weired, and hard to do. if that is the case get a new pump and shaft, also while you are their put new rod and main berings in. get a melling oil pump. a oem oil pumo shaft is fine, and get clevite 77 bearings.
Please only attempt this if you know how to properly set your bearing clearances with a micrometer or plastigauge. Otherwise your rotating assembly will only last a few thousand miles, if that.
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