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

1981 f 150

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Old Jul 25, 2004 | 08:07 PM
  #1  
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hster
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1981 f 150

Hi,

I have a 1981 f150 inline 6 cyl 4 speed manual. One day the truck died on me as if there was no gas. There was plenty of gas. I put a new solenoid in it and the truck started. Is this an alternator issue. Secondly, there is an oil leak (rear main) and strater is covered w/ oil. I had neg. battery cable disco while doing some work. Hooked cable back up and battery was dead. AAA guy said battery is too small for truck and thinks I need a new starter. If so , shoul dI also replace the solenoid? It's a new one.
 
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Old Jul 25, 2004 | 08:20 PM
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Jimbare
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From: oklahoma
sounds like you may have a couple of problems. 1st. if you replaced the starter relay, and it started with out a jump or batterycharger it was probably not the alternator.
2nd. if you were working on the starter with the neg. cable unhooked, and it wouldnt start after you hooked the cable back up, that sounds like a connection.
3rd. if the starter is full of oil that will make it a little hard to start, and will make the starter drag. that may be where the aaa guy was gettting the battery to small.


i would clean or replace the starter, replace the rear main seal, and have the alternator checked as soon as possible. that should take care of most of your problem.


jim
 
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Old Jul 25, 2004 | 08:53 PM
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Jim,

Thank you.I am burning some oil. Do you have any quick ways (besides compression check) to tell if I have blowby? In your opinion, if I do have blowby, is it a wate of time to replace the rear main seal? Won't it just blow out anyway due to the blowby?

thanks
 
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Old Jul 25, 2004 | 09:09 PM
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Jimbare
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From: oklahoma
remove the p c v valve while the truck is running and see if it is sucking. if it is put it back in and remove the oil fill cap. if smoke is coming out of the cap, lay your hand across the hole and see if it builds pressure. if it does, thats bad news. if it doesnt, replace the rear main and hope for the best.

if the p c v valve is not sucking, pull the valve off the hose and see if the hose has vacum. if the hose doesnt have vacumn, pull the hose off the intake port and make sure it has vacumn there. replace the hose and the p c v valve and that should take care of it.


jim
 
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Old Jul 26, 2004 | 07:00 PM
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If your rear main is leaking with a man tranny, you are coating your clutch with the oil, if truck is 2wd AND it is a one piece rear main, it shouldn't take more than a weekend to fix and little money. Clutch slippage equals poor contact equals wasted gas trying to drive and eventually no driveability. I'd fix it.
 
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Old Jul 26, 2004 | 11:06 PM
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please give step by step instructions on how to replace rear main seal. 4 speed manual tranny. Has the bell house , I think it's a 2 part tranny.

thanks
 
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Old Jul 26, 2004 | 11:30 PM
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You need a repair manual that has step by step instructions and pictures. You can get a manual at any parts store.
 
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