cub farmall

Whitley · Jul 12, 2011

Wife was on cub mowing,engine made a sound as if engine was fluttering and trying to quit running.Finally did quit.I have ck & replaced Dist cap/points/condenser/rotor/coil/wires/carb/Getting fire & fuel everywhere i need.Where else do i look.Thanks in advance.

Bus Driver · Jul 12, 2011

Are you sure that you checked the high speed jet?

Whitley · Jul 12, 2011

Completly rebuilt carb & also tried another one off another cub.

SouthernFarmall · Jul 12, 2011

It certainly sounds like fuel. However, you might want to check the air cleaner and make sure you are getting plenty of clean air. If that doesn't help, it would seem as if you have a more serious problem, such as an intake manifold leak. Make sure you are getting good suction at the throat of the carburetor to check for that.

Good luck, SF

El Toro · Jul 12, 2011

You may be getting fire, but it may not be firing at the right time. I would remove No1 plug near the radiator and bring that piston to TDC on the compression stroke. Once No1 piston is at TDC remove the cap and see where your rotor is pointing. It should be at the No1 plug tower. Hal

Anonymous-0 · Jul 12, 2011

Check to make sure no restriction in fuel tank nipple on the end of settling bowl.

gene bender · Jul 12, 2011

Engine was running then quit so what makes you think its out of time.

Tom Fleming · Jul 12, 2011

Gene, I tend to agree with you, however, I have a very few times seen where the distributor gear has sheared a pin, and wedged out of time on the dist shaft.

I have never seen that on a Farmall, and I do not know how the distributor gear is held on the shaft.

Not saying that is the problem here, but it has happened on other running engines that I have worked on. Chevy 283's seemed to be notorious for that..................but we aren't talking about a Chevy small block here either.

Anonymous-0 · Jul 13, 2011

I have had one skip a tooth and another with striped gear. A couple of weeks ago, my neighbor had the pin fall out of the distributor gear. Yes, it does happen.

El Toro · Jul 13, 2011

Since it won't start and he has fuel and fire. Hal

El Toro · Jul 13, 2011

Make sure you have the plug wires installed on the cap in this order:

2-1
4-3 As the rotor rotates CW

If this is ok bring No1 piston to TDC on the compression stroke as I described earlier. Hal
PS: Hold your hand over the throat of the carb while a helper makes an attempt to start the engine. Should have good suction on your hand.
Low suction means you have low intake manifold vacuum. Do a compression check and compare the readings.

JRSutton · Jul 13, 2011

If all the basics are in place, I assume you've tried fresh gas? But you didn't mention it, so thougth I'd throw it out there.

I seriously doubt it'll fix your problem, but it's easy, and free (you'd buy new gas at some point anyways) and it's good to rule that out before spending more time and money on the problem.

A layer of water can be hard to see at the bottom of a tank.

I'd say drain it dry, fill it with fresh stuff - then it's a known good.

Larry in WNY · Jul 13, 2011

Sounds like a plugged jet to me. Doesn't take much to plug them. Are you getting any fuel in the cylinders now? If not then it's probably a plugged jet. I soaked my carb. in carb. solvent and that didn't clean out the jet. I had to run a small wire through it.

Larry

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