NEW Member - 66 Coupe and 67 Convertible - Vintage Mustang Forums

 
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post #1 of 14 (permalink) Old 06-02-2017, 10:06 AM Thread Starter
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NEW Member - 66 Coupe and 67 Convertible

Wound up with two Mustangs and neither son nor daughter is interested in driving, riding nor learning...

The 66 coupe, 6 cylinder, 3-speed manual with factory a/c will be up for sale shortly

The 67 convertible, 289 automatic, may be a keeper

We're in the Athens, GA area - used to have a daily commute that took me near Mustangs Unlimited before they had free shipping.

Hope to learn more about classic Mustangs and find solutions to issues as they arise.
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post #2 of 14 (permalink) Old 06-04-2017, 08:40 AM
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Welcome to VMF.

2000 Ranger 4X4 (my DD)
1999 Explorer Sport (wife's DD)
2008 Escape (spare)
1969 Mustang Coupe (project)
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Build thread; http://www.newyorkmustangs.com/forum...cs-t15096.html
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post #3 of 14 (permalink) Old 06-20-2017, 11:01 AM Thread Starter
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After ~5 years, the convertible has left the garage! Still some carb adjustments and/or cleaning needed as the idle cycles up and down - often dies out unless the gas pedal is kept slightly pressed down.
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post #4 of 14 (permalink) Old 06-20-2017, 11:12 AM
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Welcome to the board!

Wife,........."You drove how far for that thing?"
Daughter,..."Theres no inside and it stinks."
Friend,......."Dude, thats a rusted pile."
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post #5 of 14 (permalink) Old 06-20-2017, 11:19 AM
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Welcome and nice car!
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post #6 of 14 (permalink) Old 06-20-2017, 11:22 AM
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Originally Posted by USNA81 View Post
After ~5 years, the convertible has left the garage! Still some carb adjustments and/or cleaning needed as the idle cycles up and down - often dies out unless the gas pedal is kept slightly pressed down.
Great to hear! I just got my 68 convertible back on the road Sunday. Same issues with a crappy idle. I'll need to sort it out before I consider it reliable to drive anywhere. What carb are you using?

Flade
68 289 convertible Candy-apple red & white
66 200 coupe Blue
94 GT convertible Red & black
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post #7 of 14 (permalink) Old 06-20-2017, 12:02 PM Thread Starter
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Great to hear! I just got my 68 convertible back on the road Sunday. Same issues with a crappy idle. I'll need to sort it out before I consider it reliable to drive anywhere. What carb are you using?
Ford 2100 as best I can tell - it's a 2 barrel
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post #8 of 14 (permalink) Old 06-20-2017, 05:51 PM
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Ford 2100 as best I can tell - it's a 2 barrel
Same as mine. Here are my thoughts on why to check. I have. New fuel tank, fuel lines, fuel pump and rebuilt the carb so that all should be good. I am also running alcohol free fuel.

So the most likely causes are ignition or fuel air mixture. I will start by looking for vacuum leaks. Then I will replace the idle needle valves in case they are worn. I will move on to the ignition since it could be missing on one cylinder. I will pull one wire at a time to see if the idle changes the same for all cylinders. I will clean or replace the plugs. Then I'll clean or replace the points, rotor, cap etc. lastly if it still isn't running smooth, I'll pull the plugs and do a compression test to see if one cylinder is not sharing the load.

Flade
68 289 convertible Candy-apple red & white
66 200 coupe Blue
94 GT convertible Red & black
98 GT convertible White & black
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post #9 of 14 (permalink) Old 06-20-2017, 08:42 PM Thread Starter
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Originally Posted by Flade View Post
So the most likely causes are ignition or fuel air mixture. I will start by looking for vacuum leaks. Then I will replace the idle needle valves in case they are worn. I will move on to the ignition since it could be missing on one cylinder. I will pull one wire at a time to see if the idle changes the same for all cylinders. I will clean or replace the plugs. Then I'll clean or replace the points, rotor, cap etc. lastly if it still isn't running smooth, I'll pull the plugs and do a compression test to see if one cylinder is not sharing the load.
Thanks - I have a carb kit on the way. I'll check/clean/gap the spark plugs to see if there is any improvement and then go from there.
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post #10 of 14 (permalink) Old 06-20-2017, 08:54 PM
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Thanks - I have a carb kit on the way. I'll check/clean/gap the spark plugs to see if there is any improvement and then go from there.
Deep clean the carb base soak it, rinse and blow dry all ports, and passages. Insure the bowl and needle seat are clean and in good working order. Then proceed with your tune-up. Erratic idle, as long as, the plugs, wires, coil, points etc., are in good shape, can be due to a dirty idle circuit.

Ken ..
64 1/2 Poppy Red too!, Cvt. Resto-Mod
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post #11 of 14 (permalink) Old 06-21-2017, 08:25 AM
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post #12 of 14 (permalink) Old 06-21-2017, 10:24 AM Thread Starter
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Took care of the plugs this morning - now it will stay running with a little more ease. It still doesn't idle well - I uploaded a clip:

https://youtu.be/pEyvoAdCSGI
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post #13 of 14 (permalink) Old 06-21-2017, 10:45 AM
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Originally Posted by USNA81 View Post
Took care of the plugs this morning - now it will stay running with a little more ease. It still doesn't idle well - I uploaded a clip:

https://youtu.be/pEyvoAdCSGI
Do you have a vac gage to check the engine vac at idle? Can be very helpful for diagnosing ills.

Ken ..
64 1/2 Poppy Red too!, Cvt. Resto-Mod
333 Cu.in. T5z, 3:55, Dual 40 mm DCOE Webers
Performer RPM, CI cam, TFS/TWs, Tri-Ys, Discs w/Shelby Drums
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post #14 of 14 (permalink) Old 06-23-2017, 01:44 PM Thread Starter
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Quote:
Originally Posted by Flade View Post
Same as mine. Here are my thoughts on why to check. I have. New fuel tank, fuel lines, fuel pump and rebuilt the carb so that all should be good. I am also running alcohol free fuel.

So the most likely causes are ignition or fuel air mixture. I will start by looking for vacuum leaks. Then I will replace the idle needle valves in case they are worn. I will move on to the ignition since it could be missing on one cylinder. I will pull one wire at a time to see if the idle changes the same for all cylinders. I will clean or replace the plugs. Then I'll clean or replace the points, rotor, cap etc. lastly if it still isn't running smooth, I'll pull the plugs and do a compression test to see if one cylinder is not sharing the load.
Quote:
Originally Posted by kenash View Post
Do you have a vac gage to check the engine vac at idle? Can be very helpful for diagnosing ills.
I picked up new plugs and a vacuum tester. When I went to see about hooking up the gauge, I first removed the air shield and then was able to notice that the vacuum line wasn't well seated. Pushed it all the way on the nipple and it ran much better! It's been a learning project so I'll plan on trying out the gauge in the next few days...

Thanks to all who offered assistance.
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