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Author Topic: Pinto will only stay running with pumpage or choke closed  (Read 13939 times)

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Offline Pinto5.0

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #30 on: January 08, 2013, 09:27:49 AM »
I have electronic ignition,

I have 6.8v going to the pos end of the coil when ignitions on

OK, this sounds low but I may be wrong where Fords are concerned. I know Chrysler ran a ballast resistor on electronic ignitions to reduce voltage at the coil(to 9 volts I think) but GM ran 12 volts direct to their HEI ignition. MSD's supply the coil voltage so I'm not sure what they are putting out. I'd really like to know what's correct on Fords. If my wagon was here I'd check my voltage but I wont be able to do that for a couple weeks.
'73 Sedan (I'll get to it)
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'80 hatch(Restoring to be my son's 1st car)~Callisto
'71 half hatch (bucket list Pinto)~Ghost
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Offline earthquake

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #31 on: January 08, 2013, 11:23:58 AM »
the pinto uses a resistor wire instead of a ballast resistor.Also with the block getting really hot fast have you checked your timing belt to make sure you haven't skipped a tooth or 2.Just a thought.
73 sedan parts car,80 crusin wagon conversion,76 F 250 460 SCJ,74 Ranchero 4x4,88 mustang lx convertable,and the readheaded step child 86 uhhh Chevy 4x4(Sorry guys it was cheap)

Offline ToniJ1960

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #32 on: January 08, 2013, 04:32:35 PM »
 I think I was wrong doesnt the accelerator pump squirt into the throats or whatever? Maybe the mixture screw is in too far?

Offline MitchiePinto

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #33 on: January 08, 2013, 05:35:14 PM »
Just put on the 2100 and no go.  :'(

If it helps any the previous owner re-located the battery to the trunk

The battery looses energy very fast you can't keep the ignition on for more than 7-9 mins

I noticed that most of the ignition wires had splits in them
( I quess the previous owner had the issue too)

Offline Pinto5.0

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #34 on: January 08, 2013, 07:30:09 PM »
Just put on the 2100 and no go.  :'(

If it helps any the previous owner re-located the battery to the trunk

The battery looses energy very fast you can't keep the ignition on for more than 7-9 mins

I noticed that most of the ignition wires had splits in them
( I quess the previous owner had the issue too)

That was something you should have mentioned before. Does the battery maintain a charge or does it go dead after a few seconds of cranking? If the battery is junk & the alternator isn't charging you may not have the voltage necessary to keep the ignition running. Most electronic ignitions wont fire the plugs if system voltage drops below 11 volts.
 
I would set a new battery on the cowl & connect the positive to the solenoid terminal & ground the negative. Then see what happens. I'm gonna smack myself in the head if you have had a lack of voltage this whole time.
'73 Sedan (I'll get to it)
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Offline MitchiePinto

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #35 on: January 09, 2013, 12:03:27 PM »
Battery does go dead after a few secs of cranking, but it will hold a charge once the chargers on it.

Alternator might be junk but it did charge when it was running, maybe not enough charge.

Il try the battery out of my trusty chevrolet

I should also mention that in the summer time I had issues with contact, like I would have to play with the key on-off till the starter kick in, it would just bump till it finally got the juice

Changed the terminals and it stopped but would keep doing it every so often.

battery is grounded to the body where it meets the passenger seat.

Il try to find motivation today, but I have a guy that wants it for a 351 v8 and rollcage conversion

Offline Pinto5.0

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #36 on: January 09, 2013, 01:07:37 PM »
Bumping the key usually mens the solenoid is toast but it sounds like your entire wiring harness is hacked up.
'73 Sedan (I'll get to it)
'76 Wagon driver
'80 hatch(Restoring to be my son's 1st car)~Callisto
'71 half hatch (bucket list Pinto)~Ghost
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Offline MitchiePinto

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #37 on: January 11, 2013, 03:53:01 PM »
Ok like 30 seconds ago I check the spark, took plug #1 out and had someone crank while I holded the plug 1/2 away from grounded metal, and the spark was good really good even at an 1" away it shot.

The spark is orange in coulour any signifiance to that?

My timing belt has hair cracks, but it does move in sigrence to the fan belt

Could not check compresson as my antique tester was stuck, but it souded like enough air was rushing past the hole

Ticking sound when turning over, goes away when running, always did it

Offline r4pinto

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #38 on: January 11, 2013, 04:29:20 PM »
yes. The spark should be bright blue in color. Sounds like you have an ignition problem. Bad or no spark =  unhappy engine
Matt Manter
1977 Pinto sedan- Named Harold II after the first Pinto(Harold) owned by my mom. R.I.P mom- 1980 parts provider & money machine for anything that won't fit the 80
1980 Pinto Runabout- work in progress

Offline ToniJ1960

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #39 on: January 11, 2013, 06:32:44 PM »
yes. The spark should be bright blue in color. Sounds like you have an ignition problem. Bad or no spark =  unhappy engine

 This is interesting to know. I googled blue or orange spark to see if its true and I found someone who said they had orange spark and it was due to a short to ground from an alternator line somewhere shorting to the block and heating the block. I wouldnt really think the block would get hot this way its a lot of metal. But who knows, didnt you say your block was getting hot quick? Have you checked the voltages on the alternator output or on the battery while it was running?

Offline MitchiePinto

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #40 on: January 12, 2013, 12:50:26 PM »
Intresting, I just checked and I do not have a ground wire from the alt.

Also found no ballast resister I know its in the form of a big wire unless its hidden undercarpet or in the dash

Also found that the sound amplifier thingy in the trunk was connected to the starter solenoid which also resides in the trunk

Here I took some pics, ok well, cannot figure out how to send them on here lol

block is grounded to fender, batt is grounded to trunk body

Is the ignition module the one reading "wells" and has an aluminum body suppose to be grounded to the body, and the second module the one right above it whats with that little canister thing coming out of it?

Offline r4pinto

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #41 on: January 12, 2013, 01:30:48 PM »
PM sent
Matt Manter
1977 Pinto sedan- Named Harold II after the first Pinto(Harold) owned by my mom. R.I.P mom- 1980 parts provider & money machine for anything that won't fit the 80
1980 Pinto Runabout- work in progress

Offline r4pinto

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #42 on: January 12, 2013, 03:08:04 PM »
Intresting, I just checked and I do not have a ground wire from the alt.

Also found no ballast resister I know its in the form of a big wire unless its hidden undercarpet or in the dash

Also found that the sound amplifier thingy in the trunk was connected to the starter solenoid which also resides in the trunk

Here I took some pics, ok well, cannot figure out how to send them on here lol

block is grounded to fender, batt is grounded to trunk body

Is the ignition module the one reading "wells" and has an aluminum body suppose to be grounded to the body, and the second module the one right above it whats with that little canister thing coming out of it?

I took a look at the pics you sent me & the cylinder thing above the ignition module is a condenser to eliminate noise for the radio. Now you said the car was charging but what was the voltage when the car was running? Also the resister wire that earthquake is talking about is off of the big terminal on the left of the starter solenoid & on my 1980 it is yellow in color. There are two of them there & they have a rubber orange thingy about two inches from the terminal itself.
Matt Manter
1977 Pinto sedan- Named Harold II after the first Pinto(Harold) owned by my mom. R.I.P mom- 1980 parts provider & money machine for anything that won't fit the 80
1980 Pinto Runabout- work in progress

Offline ToniJ1960

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #43 on: January 12, 2013, 03:50:37 PM »
Intresting, I just checked and I do not have a ground wire from the alt.

Also found no ballast resister I know its in the form of a big wire unless its hidden undercarpet or in the dash

Also found that the sound amplifier thingy in the trunk was connected to the starter solenoid which also resides in the trunk


Here I took some pics, ok well, cannot figure out how to send them on here lol

block is grounded to fender, batt is grounded to trunk body

Is the ignition module the one reading "wells" and has an aluminum body suppose to be grounded to the body, and the second module the one right above it whats with that little canister thing coming out of it?


 A ground couldnt cause a short to ground.

Offline r4pinto

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #44 on: January 12, 2013, 04:43:28 PM »
True... It would have to be a power lead grounding out that would cause a short to ground
Matt Manter
1977 Pinto sedan- Named Harold II after the first Pinto(Harold) owned by my mom. R.I.P mom- 1980 parts provider & money machine for anything that won't fit the 80
1980 Pinto Runabout- work in progress

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #45 on: January 12, 2013, 05:29:33 PM »
True... It would have to be a power lead grounding out that would cause a short to ground

 Right :)

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #46 on: January 13, 2013, 12:08:07 PM »
 :) I have the car running

Disconnected the amplifier from the solenoid

Took the battery from my truck and put it in

Without pumping it started and stayed running, idle was superior and strong

Now it backfires whenever you give it gas? condensation maybe or wires or is it just cold seeing its below zero here.

It runs great with the fresh battery so from what I learned here its a charging issue.


Offline Pinto5.0

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Re: Pinto will only stay running with pumpage or choke closed
« Reply #47 on: January 13, 2013, 09:35:39 PM »
Glad to hear it. The popping could be timing.
'73 Sedan (I'll get to it)
'76 Wagon driver
'80 hatch(Restoring to be my son's 1st car)~Callisto
'71 half hatch (bucket list Pinto)~Ghost
'72 sedan 5.0/T5~Lemon Squeeze