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Old Nov 11, 2008 | 07:37 PM
  #1  
1977GreenMonster's Avatar
1977GreenMonster
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From: Omaha, Nebraska
Problems with 390ci

New to forum

Just bought a truck this weekend for cheap cuz it doesnt run.
77 f150 2x4
has a 71 Galaxy 390 2bbl in it

Will not run,
For some reason it is backfiring in the carb, i rebuilt the carb checked the firing order. Cannot figure out what is wrong.

Help please!

Thanks!
Kyle
 
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Old Nov 11, 2008 | 08:46 PM
  #2  
Redmanbob's Avatar
Redmanbob
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From: Mddl A MexCans
do a compression test, maybe an intake valve is stuck open. Or the timing is way out. If you check TDC on #1 the damper should be at 0
 
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Old Nov 11, 2008 | 09:15 PM
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Bear 45/70
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From: Union, Washington
I would suspect ignition timing first, then a bad timing chain, then mechanical in the engine. The compression check is a good idea in any case.
 
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Old Nov 11, 2008 | 10:10 PM
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1977GreenMonster's Avatar
1977GreenMonster
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From: Omaha, Nebraska
Thanks for the help, I'll do the test tomorrow when I get off work... if my truck is still there

5 days after i buy it i come home with a tow notice on it... damn neighbors. I am going to call the city tomorrow.
 
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Old Nov 12, 2008 | 04:21 PM
  #5  
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masterbeavis
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From: Eldorado Ca. USA
Wash it, put tags and insurance on it, make sure it looks assembled, tell the neighbors to suck it.
 
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Old Nov 12, 2008 | 06:25 PM
  #6  
Hypoid's Avatar
Hypoid
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Joined: Apr 2004
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From: Golden, CO
At least you don't have emission testing.

Maybe somebody from the Nebraska Chapter can help out. I don't remember the guy's name, but I bs'd with an automotive tech in the "Big O." For some reason I keep thinking greasemonkey was his name.

https://www.ford-trucks.com/forums/forum176/

For that advice you owe me a catfish dinner from Joe Tess'. 8~P
It's been 20 years now. LOL
 
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Old Nov 17, 2008 | 10:18 AM
  #7  
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1977GreenMonster
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From: Omaha, Nebraska
Thanks for all the help!

For the tow notice:
I pushed up the driveway with the '96 and just to be sure they wouldnt tow it i parked the '96 behind it

For the engine i figured out what was wrong.... the timing was WAY off and the previous owner put the spark plug wires backwards. so i got it running for 50 bucks!!!

The previous owner put strait pipes on it and the exhaust manifold gaskets have huge chunks missing so it is OBNOXIOUSLY loud. mufflers and gaskets are on the list of stuff to do this week.

I am going to get it registered and insured next week so i can drive around town a bit.
 
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