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9/22/2017 12:11:25 AM
Posted: 10/6/2005 7:12:32 AM EDT
I have a 67 mustang which I was having trouble getting started on Sunday. I am pretty confident that there is nothing mechanical or carbeurator related causing it to stall out. I am prett sure it is just that the gas has been in there probably 3-6 months or more.

I know I am stupid for letting it sit. What should I do. One person told me to add a little white gas(coleman fuel). About a pint in a 18 gal tank.

Should I just go get a store bought additive, do this, or siphon the gas out?
Link Posted: 10/6/2005 7:16:11 AM EDT
3-6 month old gas isn't that old. Check plugs, timing, vacuum lines... I'd let my 69 Mach 1 sit for more than a year and not have a problem with "old gas".

Need more of an explanation of exactly what is happening and when...
Link Posted: 10/6/2005 7:21:35 AM EDT

Originally Posted By robpiat:
I have a 67 mustang which I was having trouble getting started on Sunday. I am pretty confident that there is nothing mechanical or carbeurator related causing it to stall out. I am prett sure it is just that the gas has been in there probably 3-6 months or more.

I know I am stupid for letting it sit. What should I do. One person told me to add a little white gas(coleman fuel). About a pint in a 18 gal tank.

Should I just go get a store bought additive, do this, or siphon the gas out?



Does it have points in the distributor? If it's been setting outside for 3-6 months, I'd run a strip of sandpaper--good paper, not the cheap stuff that loses the grit very easily--across both sides of the points.

While I had the cap off, I'd scrape the corrosion off the rotory button and off the wire electrodes on the inside of the cap. I'd take one or two of the plug wires out of the distributor sockets and check for corrosion.

Take the breather off and work the throttle. Make sure there's gas in the carb.
Link Posted: 10/6/2005 7:39:35 AM EDT
It will run at a fast idle if I adjust it up. When I let it back down to Idle it stalls out. I have had this happen before but usually I let it run at a fast idle for about 20 minutes to warm up, and then take it down to normal.

You are right that it could just be dirty plugs or points...My father in law is a car guru, but he is heading out of town this weekend.
Link Posted: 10/6/2005 7:45:27 AM EDT
robpiat: Sounds like you need to rebuld the carburator. Over time, the gaskets shrink, and causes air leaks. At some point, the leak gets so bad that car won't idle. I would also check around for vacuum leaks, that is broken vacuum hoses. I would also check the power brake unit mounted on the dash.
Link Posted: 10/6/2005 7:52:56 AM EDT

Originally Posted By robpiat:
It will run at a fast idle if I adjust it up. When I let it back down to Idle it stalls out. I have had this happen before but usually I let it run at a fast idle for about 20 minutes to warm up, and then take it down to normal.

You are right that it could just be dirty plugs or points...My father in law is a car guru, but he is heading out of town this weekend.



That sounds more like a choke problem. You need to adjust the choke. It's opening up too early.
Link Posted: 10/6/2005 7:54:20 AM EDT
IM DK-Prof. He is an old Mustang restoration specialist.
Link Posted: 10/6/2005 7:59:11 AM EDT

1st place I would look, carb:
Float, needle, needle seat, plugged/ retricted circuit, idle mixture adjustment

2nd
Vacuum related
Link Posted: 10/6/2005 8:08:46 AM EDT
KISS

the fuel is gone to crap. if it's not a full tank, add some fresh fuel with a can of seafoam.

if that aint it, then, look at your carb gaskets.
Link Posted: 10/6/2005 8:37:52 AM EDT
You guys want to hear a sad story....

So about 2 years ago(I have had it for 12) my Dad, who is in the metal finishing business WITH A CHEMISTRY BACKGROUND...put some oxidizers in the garage. We were scraping rust off everything, including stainless steel golf clubs. The mustang was in there and took a hit. There is rust on the strangest places, particularly some of the original chrome parts.
Link Posted: 10/6/2005 10:17:21 AM EDT
Another question...

I was told my two people that are pretty knowledgeable that the Holley 4 barrel that is on it is good for performance and tinkering, But a Edelbrock or Carter AFB style would be much more reliable.

Any input?
Link Posted: 10/6/2005 10:28:30 AM EDT

Originally Posted By PAEBR332:
IM DK-Prof. He is an old Mustang restoration specialist.



Lol...I remember that thread. When are ppl. going to learn not to mess with Fords?
Link Posted: 10/6/2005 10:32:14 AM EDT
The first thing you need to do is find a hot French foreign exchange student to buddy around with.

Link Posted: 10/6/2005 11:10:51 AM EDT

Originally Posted By robpiat:
Another question...

I was told my two people that are pretty knowledgeable that the Holley 4 barrel that is on it is good for performance and tinkering, But a Edelbrock or Carter AFB style would be much more reliable.

Any input?



Wrong. Holley is what you want. And the first question is likely the power valve in the primary float bowl. Sitting for that long is the worst thing for a Holley. Even if it still looks clean just buy a kit for it anyway and a can or two of Berryman Chemtool carb cleaner. The carb kit should be less than $30. They are easy to rebuild just watch for the checkballs and small parts.
Link Posted: 10/6/2005 11:14:13 AM EDT

Originally Posted By PAEBR332:
IM DK-Prof. He is an old Mustang restoration specialist.





You bastard!!




I thought everyone knew the rule on arfcom - no talking about DK-Prof's mustang!!
Link Posted: 10/6/2005 11:18:40 AM EDT
Can I get some background on this...did a search to no avail
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