super c running rough

brian1855 · Mar 23, 2011

I have a 53 super c 12v conversion that I restored last year. It starts well withing 2 turn and runs well consistantly. It sits in a 3 sided shed on slab, no heat. I start it about once a month to move a trailer around the property. But the last time I started it, it ran rough. Sounded a little quieter, smelled like unburned fuel, and had loss of power, it never died but bogged down under load, also surged under load and at idle. I drained carb bowl and have good flow there, that didn"t help. Any advice before I clean carb and replace electrical parts. Thank you. Brian

Bill in NJ · Mar 24, 2011

Are you sure it's hitting on all four cylinders and in the correct order. Mischief makers have been known to change plug wires. If the order is correct I would suggest pulling a plug wire and listening to the engine. If it changes there is something wrong with that cylinder. If it does not change put the wire back on and pull the next one. And so on down the line. If you locate a cylinder that changes it is either not firing or it could have a valve hung up. If no change is seen with the wiring, check the carburetor float. It could be hung up.

James Williams · Mar 24, 2011

That tractor is made to use not to play with,Take it out and work it.Ive got 5 tractors I play with and none of them run perfect all the time,sounds like your carb is guming up.The harder you work it the better it will run

jimmy

questadg · Mar 24, 2011

Sorry to get off the subject but I really like your tractor. I have a Super C wide front myself. I would like to know how/where you got the hyd lines from the pump to the lift and how you plumbed them in. Also, it looks like you have remotes going to the back? Good luck with the rough running. I agree that it is probably the carb that's gummed up. Great job!

brian1855 · Mar 24, 2011

Yes, tractor has remote to rear, It came with the hydraulic lines this way but I replaced them with new ones from our local hose shop, they specialize in hydraulic hose repair. They are plumbed in directly or with galzanized pipe fitings.

Randy in NE · Mar 24, 2011

You have it backwards. If you pull a wire and nothing happens then there is a problem with that cylinder. If it pulls down then everything is ok.

holmesw · Mar 24, 2011

If it were my tractor, I would take the carbuerator all apart, and let the pieces soak in carbuerator cleaner over night. An easier thing to do would be to run some GUM-OUT fuel injector cleaner through it, in hope of breaking down some of the gunk that is probably built up.

Bill in NJ · Mar 24, 2011

I knew that. Senior moment. I stand corrected. DUH.

Handyman · Mar 24, 2011

I would suspect a loose plug wire. had that happen on mine,

SouthernFarmall · Mar 25, 2011

Offhand, your problem sounds like a fuel system issue. I had an IH 464 acting like that, and a fuel filter was clogged. I replaced the filter, and after a few adjustments, the tractor ran fine.
Hope this helps, SF

Idaho Ron · Apr 4, 2011

When mine acted like that it was in need of a new Distributor cap. I put points and a condenser in it with no change. I rebuilt the carb, no change. Then I asked the guys here and they said the cap. The new cap made the difference. Mine went back to running like a champ. Ron

super c running rough

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