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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Fuel in oil

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Old Sep 8, 2003 | 06:06 PM
  #1  
Bernie85F150's Avatar
Bernie85F150
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Question Fuel in oil

Hello all.
I have an old 85 F-150 4x4 with a 5L (302) and fuel injection. The truck is a hobby but I use it to get back and forth to work now here is the prob. I have been tinkering with it to get it running better and I have noticed fuel in my oil. On the dip stick when I check it it's really thinned out and you can smell the gas. The oil was changed only a month or so ago now I have to do it again but what would be the cause of this. I'd like to know so I can fix the prob before it possibly gets out of hand. Any and all advice would be appreciated.
 
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Old Sep 8, 2003 | 06:47 PM
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kaelblec
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From: Eglin AFB
Fuel in oil

most of the time that i have seen that happen is when you flood the engine.
 
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Old Sep 8, 2003 | 09:17 PM
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Bernie85F150
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Fuel in oil

Thanks. I guess it may do the same if it were missing a time or two.
 
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Old Sep 8, 2003 | 09:22 PM
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1987LTDmasta
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Fuel in oil

its HARD to flood a fuel-injected engine... but can be done on rare ocassions.

too bad it is fuel-ijected ortherwise i would have said the fuel pump.. the diapram inside the mechanical fuel pump on my '86 exploded so fuel leaked inside into the crankcase as it pumped gas..
 
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Old Sep 8, 2003 | 09:49 PM
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Fuel in oil

Woah bummer. But alas it is not so easy. I haven't had any hard cranking on start-up so I don't think flooding is it.
 
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Old Sep 8, 2003 | 11:01 PM
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wildjon300ci
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From: Conyers
Fuel in oil

Change that oil ASAP!!!!!!!
 
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Old Sep 9, 2003 | 05:24 PM
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Fuel in oil

Plan to. Thanks
 
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Old Sep 11, 2003 | 06:09 PM
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Fuel in oil

Hey what does the "black ball" on the thread icon mean??
 
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Old Sep 12, 2003 | 12:05 AM
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Fuel in oil

A leaky injector might drip fuel into an open cylinder and then it leaks past the rings into the oil pan.
 
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Old Sep 12, 2003 | 01:19 PM
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Bernie85F150's Avatar
Bernie85F150
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Fuel in oil

Thanks. That sounds very believeable with my truck. She's been a farm truck for most of it's life and very little has been done to it. I've already changed one externally leaking injector and wouldn't be surprised if others were shot too.
 

Last edited by Bernie85F150; Sep 12, 2003 at 01:23 PM.
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