big oil leak in my 351W HELP ME!!!!!! - Hot Rod Forum : Hotrodders Bulletin Board
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Old 06-28-2003, 11:11 AM
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Unhappy big oil leak in my 351W HELP ME!!!!!!

I have a 1983 Mustang with a 351W. i just got it on the road and when the car is under load(driving) it starts to shoot oil out of this little hole that goes into the oil pan. the hole is right below the alternator and is about 1/2 inch wide. could it be a frost plug hole? can i tap it and put a bolt in it? Any help is much apreciated!
THANKYOU!!

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Old 06-28-2003, 11:44 AM
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Your dipstick goes through this hole.
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Old 06-28-2003, 03:35 PM
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no the dipstick is on the drivers side. and this is on the front of the engine. but thanks any way.
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Old 06-28-2003, 03:53 PM
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I have a electric fuel pump could the hole be from where the mechanical pump was???
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Old 06-28-2003, 05:38 PM
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Arrow

I think 4Jaw is right, on an engine prior to the Fox chassis, the engines were front sump(except a few vans,etc.). That engine has had a special pan (not the one that came on the engine) that is rear sump.So the dipstick was in the pan to get the level with the rear sump , the earlier front sump engines had dipsticks in the timing cover. Or someone has put an early cover on a later engine, but it would still be the dipstick hole. The fuel pump opening would have 2 bolt holes and a large opening between them into the front cover. Since that engine didn't come in the car, it was adapted, so you might double check that hole. If it is an old dipstick hole,you can get small knockout plugs ,or if you pull the cover you could tap it for a small pipe plug.
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Old 06-28-2003, 05:47 PM
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If that hole is in the pan, it may be from a low oil sensor that was used on some cars. If that is the case, it will be threaded, and you can plug it.
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Old 06-28-2003, 10:10 PM
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It's the dipstick hole!

Plug it with silicone if you don't care how it looks.

How many 351W went into 83 Mustangs? None, so what you have there is a swapped in front sump 351W motor with the old dipstick hole unplugged.

The reason why the oil shoots out is because the tube extends almost down to the oil level and normal slosh will force it out.

I'll say the word one more time...

Dipstick.
BTW 4 JAw Chick forgot to log out again. lol

Last edited by 4 Jaw Chick; 06-28-2003 at 10:24 PM.
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Old 06-28-2003, 10:19 PM
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Low oil level sensor goes into the sump (side) of the pan.
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Old 06-29-2003, 11:29 AM
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i have a 351W the dipstick tube is on the passenger side of the vehicle
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