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Old 03-11-2009, 15:09   #1 (permalink)
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87 Mustang 390 motor no oil pressure?

i have a 87 Mustang with a 390 in it that came out of a 69 galaxie 500. the other day i went to start it and it was kinda hard to start but usually is cuz my carb is kinda fudge up i notice i had no oil pressure and the motor was making a ticking noise i called the guy who i got it from and he said to change oil filter and then see he also said thers a new oil pump in it so that should be good any other suggestions on what im looking at the motor was rebuilt 500 miles ago
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Old 03-20-2009, 00:05   #2 (permalink)
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Re: 87 Mustang 390 motor no oil pressure?

No oil pressure is a big thing.

First- I would try to check that the gauge for the oil pressure is correct and functional first to be sure that you just didn't have a wire fall off or a bad ground.

2nd- pop out the distributor and make sure oil pump shaft and or drive on the bottom of the distributor is not broken.

3rd. None of these- be ready to drop your wallet- I mean oil pan.

I have also seen guys rebuild engines and forget to put a cleanout plug back in a head or in the wrong spot and have these symptoms too.
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Old 03-20-2009, 16:18   #3 (permalink)
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Re: 87 Mustang 390 motor no oil pressure?

I would agree 1meangt, I would pull the distributor and make sure the oil pump rod is even there, let alone broke. I have seen people who changed oil pumps and FORGOT to re-install the rod or even had pulled the distributor and the rod fell into the oil pan.
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Old 06-15-2009, 07:23   #4 (permalink)
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Re: 87 Mustang 390 motor no oil pressure?

there are press in plugs in the oiling system on these engines under the intake manifold,
were oil is fed to the lifters. i know of someone who had the same problem after a rebuild on a 390 in a 66' fairlane.
high oil press. causes them to blow out, they look like a small freeze/welch plug in a water jacket,
anyone doing a rebuild on these engines, i recomment taping threads and use a threaded pipe plug, a machine shop can also do this while they have your block.
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Old 06-15-2009, 12:04   #5 (permalink)
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Re: 87 Mustang 390 motor no oil pressure?

Quote:
Originally Posted by keith28fykerd View Post
there are press in plugs in the oiling system on these engines under the intake manifold,
were oil is fed to the lifters. i know of someone who had the same problem after a rebuild on a 390 in a 66' fairlane.
high oil press. causes them to blow out, they look like a small freeze/welch plug in a water jacket,
anyone doing a rebuild on these engines, i recomment taping threads and use a threaded pipe plug, a machine shop can also do this while they have your block.
I've seen where someone did a rebuild and drove one in over the other one and blocked up the passageway.
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Old 07-05-2009, 04:45   #6 (permalink)
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Re: 87 Mustang 390 motor no oil pressure?

please post some photos of your engine bay- I would love to see it and I imagine I'm not the only one. I've heard of a lot of different engine swaps into stangs - but thats the first time I've ever heard of someone putting an FE style motor in one. It's actually a pretty cool choice, definately unique and probably runs it's butt off (depending on which 390 it is)
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Old 07-05-2009, 04:46   #7 (permalink)
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Re: 87 Mustang 390 motor no oil pressure?

whoops you said what it came outta.
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