mccormick cub just stops running.

fourtheverest · Aug 30, 2015

I have a 1951 mccormick cub. It will mow just find and then just stop running. I try to restart, but there's nothing. The engine won't even attempt to turn over. I then go out the next day and she fires right up. Any advice?

DeltaRed · Aug 30, 2015

Check your coil.

old · Aug 30, 2015

Just to let you know it is a Farmall Cub which was at on time Mc-Cormick deering but that is not and never was part of John Deere.
That all said if it dies and will not even try top spin over after it dies that could be poor battery cable connections or a starter that is going bad so when cold the starter will spin but when hot i binds up and will not spin or you could be having it over heat and that will lock one up so it will not spin over

Pete in MD · Aug 30, 2015

Rich,
The hood on Cubs said McCormick FARMALL Cub.
The owners manual says McCormick Deering Farmall Cub.
Cub Owners Manual

old · Aug 30, 2015

Yes I know that but the Mc-Cormick part of it was some sort of sales thing that as long as one of them where still alive it was to be used on the Farmall tractors. Most all Farmall models if not all of them used the Mc-Cormick name on them some place, I.E. A, B,C,H,M, etc etc etc

rrlund · Aug 30, 2015

Didn't the Deering name have to appear on everything until the last direct descendant of the Deering family passed away?

gene bender · Aug 30, 2015

Got to be a battery problem. Next time use a volt meter to see where the trouble is i would start with connection at the starter cleaning all connections.

old · Aug 30, 2015

Something like that due to the Deering family selling out to IH so there name was there till the last one died

Janicholson · Aug 30, 2015

If you mean that when it quits, the starter does no turn. (engine is not going RRRerRRRerRRR) then the battery, the switch on the motor, the starter motor, a connection, or a cable is failing.
If the starter motor spins the engine, but it does not start, that is way different. I suspect a coil issue if that is happening. Immediately after it stops, pull out the coil wire and hold it 1/4" away from the block (put it in Neutral) and crank the engine to see if there is spark. if none, coil time. Setting the points is also important, but help might be needed to get those correct. Jim

fixerupper · Aug 30, 2015

I get bad vibes from this one and I hope I'm wrong. When it dies does it coast to a stop or does it stop abruptly? Does the starter even try or make any noise? As a worst case scenario the pistons could be seizing up. After it cools the pistons shrink some and unstick. I hope this is not the case but I have seen it happen.

Now, on to a less dramatic scenario. Does it have mag or distributor? If it's a distributor the big hot wire from the battery to the starter switch could have an iffy connection that breaks when it gets hot and if the juice for the ignition comes from that connection the distributor will lose it's power. Now you have a tractor that dies and the starter is dead. It could be at the starter or the battery. If it's a mag the probable only way for these two events to happen is if the coil in the mag gives out and the starter has a heat or vibration ralated bad connection.

mccormick cub just stops running.

fourtheverest

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