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Random part in oil pan

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Old Jul 14, 2018 | 07:46 PM
  #1  
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dlhmatt
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Default Random part in oil pan

E0SE-A2E block in my 1965 Mustang coupe.
Turns out to be a 1980 Thunderbird 255 (heavy sigh).
Hooked up to a c4 automatic.

Dropped the oil pan today because there is leakage around it and I wanted to check the bearings out on the big ends of the connecting rods. Mmm nice and tight so I think the knocking I hear is the flex plate bolts coming loose. Drained the oil before pulling the pan and let it sit for a while. Sloshed the little puddle of oil to see if it was sparkling and saw a hunk of metal in there.

There was a cap cap or hole plug or something in the bottom of the pan just hanging out. It is stamped 1/2 inside the cup.
Anyone see this part before?

https://imgur.com/a/5Mdjio7
Old Jul 15, 2018 | 11:59 PM
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Looks like an oil galley plug. Maybe from timing chain area. Think there is one in block under intake near dist too.

Last edited by Stepman; Jul 16, 2018 at 12:00 AM. Reason: Add
Old Jul 16, 2018 | 06:22 AM
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dlhmatt
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Originally Posted by Stepman
Looks like an oil galley plug. Maybe from timing chain area. Think there is one in block under intake near dist too.
Thank you for that.
Good thing I just replaced the water pump a few months ago and redid the leaking timing cover gasket. Going to test the oil pressure, as I think either the oil pressure light is out or the wiring is dead. but yes, it looks like that is 100% the part.

Thanks again Stepman.
Old Jul 16, 2018 | 11:07 AM
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Hmmm finding parts in the oil pan is never a good thing . . . hope you figure it out!
Old Jul 16, 2018 | 11:13 AM
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Originally Posted by 4cruizn
Hmmm finding parts in the oil pan is never a good thing . . . hope you figure it out!
Yes, it is rather disconcerting. Just hope that this didn’t lead to some significant and irreversible damage to the block. Will know more after an oil pressure test.
Old Jul 21, 2018 | 07:38 PM
  #6  
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dlhmatt
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Oil pan back on after evapo-rust then painting. Installed an oil pressure gauge in place of the oil pressure sending unit. No spark plugs in and spinning the motor with the starter builds 55psi. Thoughts or opinions?

I found this old old post on another forum:
“When I lost a galley plug in my FE I had no pressure and I heard my valve train clattering at idle (that's what alerted me to my gage reading zero and I shut it off).”
Old Jul 22, 2018 | 03:51 PM
  #7  
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It is an oil galley plug...

This is what they loo like in the block, this is a 351 though:


Some other examples:

FE Block.

When they pop out, you're losing pressure somewhere.
Old Jul 22, 2018 | 03:58 PM
  #8  
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dlhmatt
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Originally Posted by 08'MustangDude
It is an oil galley plug...

This is what they loo like in the block, this is a 351 though:


Some other examples:

FE Block.

When they pop out, you're losing pressure somewhere.

Getting 55psi cold at startup. Let it warm up and it slowly went down to 40psi at warm. Jumpers the starter solenoid and watched it oil the rockers on the passenger side. Going to pull the driver side valve cover and verify rocker oiling.
Old Jul 23, 2018 | 01:59 PM
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That could've been intentionally punched through for replacement but then the person realized they would have to drop the pan to retrieve it and left it in there or, couldn't find it in the pan because it didn't drop all the way through and figured, oh well , just leave it....
Old Jul 23, 2018 | 10:07 PM
  #10  
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imp
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Originally Posted by 08'MustangDude
It is an oil galley plug...

This is what they loo like in the block, this is a 351 though:


Some other examples:

FE Block.

When they pop out, you're losing pressure somewhere.
FE block with roller lifters? Hmmmmm.........imp



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