1971 Mach 1 429 wont restart

Tiny
71MACH1
  • MEMBER
  • 1971 FORD MUSTANG
  • V8
  • 2WD
  • AUTOMATIC
1971 Mach 1 Mustang 429, 4 barrel carb. Car starts first time and runs good then won't restart. Engine turns over. Have already checked timing, replaced battery, fuel filter, starter cable, heat sensor. Any suggestions
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Sunday, April 17th, 2011 AT 8:16 PM

7 Replies

Tiny
RASMATAZ
  • MEMBER
Check and test for fuel and spark and get with what's missing
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Sunday, April 17th, 2011 AT 9:39 PM
Tiny
CJ MEDEVAC
  • EXPERT
THIS OCCURRENCE HAPPENS OVER AND OVER?--OR IS IT DOWN FOR THE FINAL COUNT NOW?

IF IT'S TERMINAL, OR WHEN IT BECOMES TERMINAL, IMMEDIATELY! (NO WAITING)

DO THIS OUTSIDE, WITH A BLANKET AND FIRE EXTINGUISHER HANDY----DRIBBLE A LITTLE FUEL DOWN THE CARB, TRY TO START---DOES IT ATTEMPT TO START OR IS IT JUST DRY HEAVING POINTLESS REVOLUTIONS. IF WE HAVE SOME COUGHING AND SPITTING (NOT YOU! THE CAR!) IT'S PROBABLY FUEL PROBLEMS. WE WILL ASSIST YOU THRU WHAT TO CHECK!

THEN, SNATCH A PLUG WIRE OFF OF A PLUG, SHOVE A NAIL IN THE BOOT BESIDE THE "PLUG CONNECTOR" HOLD IT CLOSE TO THE BLOCK (1/4 INCH) AND HAVE YOUR BUDDY CRANK THE ENGINE---ARE YOU GETTING A NICE POPPING BLUE SPARK BETWEEN THE 2. NO SPARKY. WE WILL HELP YOU INVESTIGATE AN IGNITION PROBLEM.

WE REALLY CRAVE HISTORY AND ANY MODIFICATIONS YOU MIGHT HAVE---FEEL FREE TO WRITE A NOVEL. WE WILL, BACK TO YOU, IF NECESSARY!

WE WILL ATTEMPT TO GO THE SHORTEST, EZist ROUTE, TO GET YOU RUNNING, PLEASE DO THE TESTS WE ASK, AND DO NOT COME BACK AS OTHERS DO, JUMPING THE GUN. NEVER REVEALING "OUR TEST RESULTS". WE SORTA HAVE NOTHING TO STEER US ONE WAY OR THE OTHER, WITHOUT THEM.

IF YOU GET LOST TELL US, WE WILL BACK UP AND SHOW YOU. DON'T GET FRUSTRATED, rasmataz HIS POO-POO! I TOO KNOW OLDER JEEPS AND FORDS PRETTY WELL!

THIS PUPPY GOT POINTS?

ARE YOU MECHANICAL ON YOUR END?

VOLTMETER, AND UNDERSTAND HOW TO USE IT (VOLTS/ OHMS)?

HERE'S MY 2

THE MEDIC
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Monday, April 18th, 2011 AT 12:05 AM
Tiny
CJ MEDEVAC
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Missed a word in there RAZ--Shoulda said "Knows his poo-poo"!

I wish there was a feature here, as the old site had, where I could fixed that. If there is one, let me know how to do it, so I don't have to do this anymore!

The Medic
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Monday, April 18th, 2011 AT 2:09 AM
Tiny
RASMATAZ
  • MEMBER
Take charge Sgt Medic -make sure its not modified both ignition/fuel system- this baby can haul be in one when it 1st came out-this one is First On Race Day-Let me know what's happening I'm taking a 4 day pass-catch you later on the rebound-adios amigo
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Monday, April 18th, 2011 AT 7:09 AM
Tiny
CJ MEDEVAC
  • EXPERT
Roger That Raz!

Seems he must be either having commo issues or is still shedding tears over his prized baby not able to run.

I'll wait on him, as I do, with all.

I will give 110% to aid him.

If I know you, you will still be monitoring the situation, even if on "Pass". Destination?

The Medic. Out
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Monday, April 18th, 2011 AT 1:33 PM
Tiny
71MACH1
  • MEMBER
Checked fuel line. Ok Checked spark. Ok Removed top of carb (Edelbrock 1406). Gasket needs to be replaced. Car always starts first thing in the morning and you can even take it for a ride. If it stalls or you shut it off it will not restart the rest of the day no matter what you do. If you pour fuel in the carb it tries to restart then just burns up the fuel and wont start. If we have power, fuel and spark it seems the problem would be with the carb?
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Monday, April 18th, 2011 AT 1:55 PM
Tiny
CJ MEDEVAC
  • EXPERT
Roger, If she'll burn off the fuel, during the "No Start" situation, You definitely have a fuel issue, not spark.

Before you get involved with the carb (maybe soon enough!)

Lets investigate fuel flow on its way to the carb. This might go best, if done the minute that the beast will not start!

Soon as you cannot crank it be ready to do the following quickly, this may require some assistance:

Snatch the fuel line loose real close to the carb, attach 2-5 feet of new fuel line to the loose line (Steel line?).

Throw the other end into a Jar/ Jug that will hold at least a gallon of fuel (Just so it don't overflow on you)

With a spray bottle, mist fuel into the carb

Have pal fire it up,

You keep it running for about 30 seconds, with the spray bottle

After 30 seconds let it die

Measure the fuel you just got in the jug

Come back with results

We want to know if there is enough, or any flow to the carb

If too little fuel gets in the jug, we will continue toward the fuel tank till we find the problem

Same way, one item eliminated at a time

This may/ or could be:

Bad pump (Electric/ Mechanical?)

If add on electric pump, what kinda fuel pressure you got? Use Gauge, no guessing. Whats the carb require? See paper work.

Fuel filter restricted, Again? (Mega trash in tank)

On the suction side of the fuel pump,

A old crappy rubber line may be "Sucking Flat"

Crimped line(s) somewhere toward tank

In the tank, the pick-up may have trash s. Ucked to it.

Heck, the darn fuel tank may not be venting, pop the cap, see if it s. Ucks air!

If all is well on flow, We will investigate the carb

Can you send pics of carb?

This start just after carb installed?

Specifically, show pics of n. Ipples you "Capped Off" on the carb

Do you still have carb paper work? Interested in "Bowl Vent(s)"

Waitin' on results!

Remember I'm a Jeep Guy! (Maybe you could get a CJ, and we would have no problems!)

The Medic
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Tuesday, April 19th, 2011 AT 1:41 AM

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