Jubilee No Start

Jeff Gascon · Apr 7, 2020

I have and old Ford Jubilee, not sure of the year. I have replaced the Carburetor, fuel line, spark plugs, cap, rotor, wires, points, condenser, and ignition coil. I crank it over and have a hot spark from coil wire. I can't get any spark from plug wires while cranking. I have a K-D tools portable ignition system that will throw a continuous spark and it will fire at the plug wires so I know the wires are good. What am I missing that causes no spark from ignition system to spark plugs?

Steve@Advance · Apr 7, 2020

Compare the old cap and rotor to the new ones.

Chances are there is a difference, the rotor is not aligning with the cap terminals when it fires, the rotor is too short, made different, look that area over closely.

Dennis K (WA) · Apr 7, 2020

New condensers are not always good. Friend of mine missed a parade that we were waiting to start. Tractor would not start. Later found the new condenser he had installed failed. Installed the old one, still running.
Dennis

MN valley man · Apr 7, 2020

One extra thing that can add to the confusion on those Fords is a small clip that attaches to the shaft of the distributor after you install the dust plate and before the rotor is installed. Without the clip the rotor kind of dances around in there and can raise heck with the rotor and cap.

Jeff Gascon · Apr 7, 2020

I pulled #1 plug and brought engine to TDC, rotor pointed to #1 on cap I loosened the distributor, put a plug in plug wire and turned distributor back and forth with the key on and the spark fired out the plug wire. I'm at my wits end on this one.

used red MN · Apr 8, 2020

Hello Jeff, welcome to YT! Sorry I in know way mean to insult you, but I cannot know you level of mechanical
knowledge since you just started posting here. I am not a Ford expert, but have you had the distributor
completely out of the tractor since it ran last? You are aware the there are two positions the camshaft can be in
when no. 1 cylinder is at top dead center. It can be at the top of the compression stroke which is where you want
to time it. It can also be at the top of the exhaust stroke. If all is well with the valves while cranking the cylinder
will build pressure against a finger or push in plastic plug as it is coming up on the compression stroke. None of
my suggestion has anything to do with the fact that you are not getting spark at the plug wires. I just suspect
there is a possibility the spark is happening but you are just not detecting it. Also as Steve says, matching old
cap and rotor to new is an essential part of that replacement.

showcrop · Apr 8, 2020

Do you get spark at the points when you pull the open manually?

Jubilee No Start

Jeff Gascon

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Steve@Advance

Well-known Member

Dennis K (WA)

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MN valley man

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Jeff Gascon

New User

used red MN

Well-known Member

showcrop

Well-known Member

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