Starts then dies

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midmo
10+ Years
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Posts: 318
Joined: Mon Dec 08, 2008 8:28 pm
Zip Code: 65018
Tractors Owned: 1947 cub #11248
1948 #39811 trimmed dash
1950 VAC Case
Circle of Safety: Y
Location: MO California

Starts then dies

Postby midmo » Fri Aug 09, 2019 7:53 pm

It is a 1962 converted to 12 volt. it started yesterday and it acted like it was cold natured then went to running like always. Put the woods mower on and now it starts right off but then dies. Drained old gas (in case that was the problem), have cleaned the carburetor (3 times) and changed out the jet using one from another cub, tried new plugs, cleaned the sediment bowl. Put new gas and still won't run.
Can anyone tell me what I am missing??

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Lt.Mike
10+ Years
10+ Years
Posts: 1959
Joined: Sun Feb 17, 2008 2:38 am
Zip Code: 07727
Tractors Owned: '58 International Cub Lo-Boy
2 - '46 International A's
Location: Farmingdale NJ

Re: Starts then dies

Postby Lt.Mike » Fri Aug 09, 2019 8:09 pm

Don’t know if you have a zenith carb but mine was doing that and the elbow going into the carb has a screen attached that was clogged.
Quote by Gary Pickeral I like
"If it can cast a shadow, it can be restored"

1958 Cub Lo-Boy
1952 Farmall Cub, Paula's Cub
1952 Farmall Cub (#2)
1946 International IA (Lil’Mule)
1946 International IA (#2)
1953 Farmall SA

Eugene
Team Cub Mentor
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Posts: 18447
Joined: Fri Jul 02, 2004 9:52 pm
Zip Code: 65051
Circle of Safety: Y
Location: Mo. Linn

Re: Starts then dies

Postby Eugene » Fri Aug 09, 2019 8:21 pm

Ignition. Check with a timing light. Guessing, faulty coil. You could just swap out the coil.

You could hold another Cubfest and have us diagnose the problem.

Edit. If it were a low fuel flow problem, the tractor would run for a minute or two until the carburetor bowl emptied.
I have an excuse. CRS.

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Lt.Mike
10+ Years
10+ Years
Posts: 1959
Joined: Sun Feb 17, 2008 2:38 am
Zip Code: 07727
Tractors Owned: '58 International Cub Lo-Boy
2 - '46 International A's
Location: Farmingdale NJ

Re: Starts then dies

Postby Lt.Mike » Fri Aug 09, 2019 8:57 pm

Eugene wrote:Ignition. Check with a timing light. Guessing, faulty coil. You could just swap out the coil.
.

You mentioned there was a 12v conversion made. Did that include installing a 12v coil?
One of the last cubs I brought home had that done which included a new coil but the PO installed a 6v coil. The coil cooked and it barely ran. A new 12v coil made all the difference.
Quote by Gary Pickeral I like
"If it can cast a shadow, it can be restored"

1958 Cub Lo-Boy
1952 Farmall Cub, Paula's Cub
1952 Farmall Cub (#2)
1946 International IA (Lil’Mule)
1946 International IA (#2)
1953 Farmall SA

midmo
10+ Years
10+ Years
Posts: 318
Joined: Mon Dec 08, 2008 8:28 pm
Zip Code: 65018
Tractors Owned: 1947 cub #11248
1948 #39811 trimmed dash
1950 VAC Case
Circle of Safety: Y
Location: MO California

Re: Starts then dies

Postby midmo » Sat Aug 10, 2019 10:02 am

New coil, still the same. $28.00 12 volt No external resistor reguired. Same as the old. It is a IH carb. I'll try the timing light but can't see how it would have changed. Need a CubFest today. Lol

Eugene
Team Cub Mentor
Team Cub Mentor
Posts: 18447
Joined: Fri Jul 02, 2004 9:52 pm
Zip Code: 65051
Circle of Safety: Y
Location: Mo. Linn

Re: Starts then dies

Postby Eugene » Sat Aug 10, 2019 11:33 am

Ron. As long as we are spending your money.

I'm going with the ignition system because you have been through the carburetor several times.

Double and triple check the ignition system. Something to check is the condition of the points. Condenser, faulty one, engine will run like crap.

Edit. Ignition advance, check. Although this wouldn't keep the engine from starting and running.
I have an excuse. CRS.

midmo
10+ Years
10+ Years
Posts: 318
Joined: Mon Dec 08, 2008 8:28 pm
Zip Code: 65018
Tractors Owned: 1947 cub #11248
1948 #39811 trimmed dash
1950 VAC Case
Circle of Safety: Y
Location: MO California

Re: Starts then dies

Postby midmo » Sat Aug 10, 2019 3:38 pm

Put a different condenser on. BAM!!! Runs like it should. Thanks for all the comments.

User avatar
Lt.Mike
10+ Years
10+ Years
Posts: 1959
Joined: Sun Feb 17, 2008 2:38 am
Zip Code: 07727
Tractors Owned: '58 International Cub Lo-Boy
2 - '46 International A's
Location: Farmingdale NJ

Re: Starts then dies

Postby Lt.Mike » Sat Aug 10, 2019 6:26 pm

:thumbsup:
Quote by Gary Pickeral I like
"If it can cast a shadow, it can be restored"

1958 Cub Lo-Boy
1952 Farmall Cub, Paula's Cub
1952 Farmall Cub (#2)
1946 International IA (Lil’Mule)
1946 International IA (#2)
1953 Farmall SA


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