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1972 Ford F100 Wont start/stay running
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metalhead
New User
Jul 24, 2009, 12:09 PM
Post #1 of 6
(9210 views)
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1972 Ford F100 Wont start/stay running
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I really hope you can help me with this I am stuck between a rock and a hard place!! Ok I have a 1972 Ford F100 sport custom with a stock 360 engine and I have been having some problems keeping it running. I'm not too much of a gearhead but i'm still learning. When I got the truck it had some electrical problems with the solenoid and starter after replacing the starter,solenoid,condenser,alternator,plugs and wires,and the dist cap it ran great for about a month. One day I was driving and it started to bog down untill it died. I tried to start it back up and it ran but it ran very choppy. A friend of mine suggested that it was vapor locked so I put some wooden clothes pins on the metal fuel line leading up to the carb and this somewhat fixed my problem for about two weeks or so. Then as I was driving it one day it did the same thing again,it bogged down untill it died and when I tried to start it up again it would run very choppy and you could hear the carb sucking air through the choke. But sometimes it would start up and run great but would die after about a minute or so of running and most times it would sluggishly start up but run so choppy and when you give it gas it would seem to kill it. So thinking this was a carb problem and having the same stock two barrel motorcraft carb I went and bought a Holley remanufactured and put it on. After getting it on and trying to start it I heard this clanking sound like something was being broke apart and being knocked around. Finally it would not turn over so I pulled my starter off and the nose cone on the starter had been sheared off by the flywheel. A man at the local parts store suggested that it had a backlash in it. I'm still not sure what causes that but he said that it was a timing problem. I dont know much about timing but my grandpa said that if the timing was off then the motor wouldnt run good. When this motor runs, it runs great! You cant hear any pings,knocks, or rattles of any kind. But the problem is getting it to stay running. Please any help is so much appriciated. I've been on my own on this ever since I got it and its been sitting in my driveway for about a month. If you need ANY more information it would be my pleasure to help you help me! Thanks. Also this may also help you, when I try to start it there is white smoke and the smell of gas coming out of the hose on the oil cap and also where the exhaust pipe bolts in the manifold there is a small gap due to some loose bolts and there is white smoke billowing out of that as well.
(This post was edited by metalhead on Jul 24, 2009, 12:17 PM)
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metalhead
New User
Jul 27, 2009, 3:37 AM
Post #2 of 6
(9187 views)
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Re: 1972 Ford F100 Wont start/stay running
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I realize that may have been a lot to read and for that I apologize i just wanted to make sure I got everything out that I knew about it. I have some ideas as to what may cause this problem but I want to make sure I'm headed in the right direction. So please any ideas from anyone would be great.
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chickenhouse
Enthusiast
Jul 27, 2009, 5:56 AM
Post #3 of 6
(9178 views)
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Re: 1972 Ford F100 Wont start/stay running
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Are you sure no one put diesel fuel in it?
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Loren Champlain Sr
Veteran
/ Moderator
Jul 27, 2009, 1:00 PM
Post #4 of 6
(9175 views)
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Re: 1972 Ford F100 Wont start/stay running
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metalhead; If this is stock, it has a points/condensor type distributor. On a problem like this, I like to start with the basics. First, examine the points. If they are burnt or a bluish color, replace the points and condensor. Adjust them to
.017". Better yet, using a dwell meter, adjust them to 28 degrees. Then, set the timing to specs (usually around 6 degrees BTDC). Adjust the air/fuel mix next. Turn one screw in until the engine begins to falter, then back it out till it 'just recovers'. Do the same with the second one. Do the first one again, then the second one again. That will be your best, lean idle. It's possible that you have a vacuum leak from your symptoms. Although fuel pumps weren't much of an issue, back then, you may want to check for pressure and volume. Seven lbs. pressure is quite sufficient. Check the fuel filter. It is screwed into the carb where the fuel line attaches. The white smoke could be from pure over fueling. Make sure that the choke is opening all of the way once the engine warms up. (if you could pull a couple of spark plugs and take a look....if they are wet or 'black' and sooty, then it is an overfueling problem. If they are very clean and 'white', look for a vacuum leak (too lean).
Loren
SW Washington
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Guest
Anonymous Poster
Jul 29, 2009, 2:18 PM
Post #5 of 6
(9168 views)
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Re: 1972 Ford F100 Wont start/stay running
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Well the points are brand new along with the plugs and wires and dist. Could it be that they are just not set right? Also I took my valve covers off and I noticed that they didnt have any gaskets on them at all you could see pieces of what looked like a mixture of oil and old gasket laying around as well. And lately the white smoke is no longer coming out.
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metalhead
New User
Jul 30, 2009, 12:27 PM
Post #6 of 6
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Re: 1972 Ford F100 Wont start/stay running
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Would the fact that I have no gaskets on my valve covers and a vacuum leak be my problems?
I removed my valve covers and noticed that there were no gaskets left at all. I would believe that the "air sucking" noise that I heard may have been due to the fact that I have no gaskets on my valve covers.
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