k301 problems

[wheelhorse66 10]

My k301 won't stay running just put a new carb on it,it will start up and then spit and sputter and cut off,then it might fire right back up,or you have to crank on it a while then it will fire.

[WH nut 553]

Did you adjust the carb?

[wheelhorse66 10]

Ya I've adjusted a little bit on it,what are they supposed to be set on?

[boovuc 1,090]

It depends on what carb you have on your K301. The Kohler carb has preliminary settings of:

2.5 turns out for the Low Idle needle and 2 turns out for the hi speed needle.

 

The Walbro carb with the fixed jet is:

Low idle needle is 1.5 turns out. (There is no hi speed adjustment).

 

The Walbro adjustable carbs are:

Low idle needle is 1.75 turns out and the high speed is 1 and an eight turns out.

 

These are the preliminary settings for the three carbs used on the K301 12 horse. This should get your tractor started then just tweek your settings for the best performance once it is warmed up.

[WH nut 553]

You set it to abtain the best running, there is no set number of turns.

[boovuc 1,090]

Here is a shortcut to a downloadable Kohler Carburetor Reference Manual. (Compliments of Small Engine Suppliers).

 

A lot of good info in there!

 

http://www.smallenginesuppliers.com/html/engine-specs/kohler/Kohler_Carburetor_Reference_Manual_TP-2377-E.pdf

[wheelhorse66 10]

I was looking,it looks like gas mixed with oil is coming out the carb,could a valve be stuck?how is oil getting in the carb?

[boovuc 1,090]

Do you notice any gasket leaks on your engine. Any where you may see some oil on the outside of your motor?

Check your oil for a smell of gasoline? Is your oil thinned out?

Crankcase is venting back into the carb, (which it should), but with excessive oil.

[wheelhorse66 10]

No gasket leaks

[Jparkes43 329]

Would oil in the carb be a breather tube if there is else's or thin oil it will cause oil To come out of there try taking it off and running to engine hardly anything should come out.

James

[wheelhorse66 10]

Ok so been messing with it I can get it to idle for about 3 seconds and shuts right back off,it backfires then cuts off.are these engines supposed to have a condenser hooked to to coil?its the k301s model,it didn't have one when I got it,so I don't know if it supposed to or not.

[953 nut 55,033]

If the wire from the coil to points has no condenser connected to it your points are probably burned up. The condenser quenches the arc that takes place when the points open and close. You can run without one, but not for long. I would guess that you need to put in some new points and a condenser first, then see how it runs. Your ignition timing is estanlished by the points gap so double check it.

 

Good luck and keep us posted.

[wheelhorse66 10]

Do you hook the condenser up to hot or negative on the coil?

[boovuc 1,090]

Don't look at the coil. Look at your points cover. There should be a condenser sitting outside of the housing.

[wheelhorse66 10]

No there is none on the out side of the cover,I hooked one up to the negative side of the coil with the same wire as running to the points,

[boovuc 1,090]

What do your points look like? Without a condenser on a breaker ignition, they had to have been arking. I wonder if they are burnt/pitted!

Your 301 is a breaker ignition I hope?

Edited March 2, 2014 by boovuc

[wheelhorse66 10]

I put a condenser on it and it fired up and I let the clutch off and the hydrostatic kicked on and killed it and it won't start back.but it backfires and puffs smoke out the carb and then shuts off.

Edited March 2, 2014 by wheelhorse66

[boovuc 1,090]

I think you just need to get back to basics on the motor. First, just make sure that your motor's ignition is a points ignition. (What tractor and year is this running from).

If you see the points under the points cover, check their condition and gap. If there were points and it had no condenser, make sure the condenser you put on them is a good one.

As was stated earlier, pull the crankcase vent tube off the carb if you are noticing a lot of oil and gas in the carburetor. With the vent line off, and facing away from everything and everybody you don't want coated in oil, start it and see if it spews oil. If it doesn't, great!

If it does there can be many things that can cause that pressure including a bad gasket, a stuck valve, timing way off, etc. A stuck valve was mentioned earlier in the tread I believe.

 

You need to eliminate if the problem is electrical or mechanical. Chose one and investigate it to a conclusion then move on.

[953 nut 55,033]

A new condenser will make a new set of points last longer, but it will not correct the problem of having a burned set of points. Since the lack of a condenser was a known problem you need to instal and properly adjust a new set of points first. If other problems are present they can be delt with, but you won't know until your ignition is working properly.   

[wheelhorse66 10]

I found the problem the fuel pump wasent pumping enough,its pumping but not enough,its all rusty inside of the pump.

[chazm 413]

Ok as stated above ... what tractor do you have? To help you to diagnose any problems this info would be a help...

 

I found the problem the fuel pump wasent pumping enough,its pumping but not enough,its all rusty inside of the pump.

Now we are going from an ignition /electrical problem to a fuel problem.. Your best bet is to get a length of 1/4" gas line & new fuel filter. Drain the the tank & clean it out

REPLACE ALL the gas line, from the tank to the pump & from the pump to the carb. It sounds like you already have the pump apart.

Depending how bad it is you may need a new pump

After its together, see hows its running. BUT IMHO, you should replace the points as well 

[wheelhorse66 10]

The engine is on a allis Chalmers 712 hydrostatic,well I took the fuel pump apart and it was all rusty inside,so I pulled out the diaphragm and no pin holes,I blower it out and put it back on and same problem,I dont no anything else to do,any other ideas?and I also replaced coil and points and condenser,and new coil wire.

Edited March 2, 2014 by wheelhorse66

[chazm 413]

The rust had to come from somewhere     I'm betting from the fuel tank... Did you clean it out & replaced the fuel filter?

Was the fuel pump pushing fuel after you put it back together? Also the carb may have gotten rust in it now as well & giving you problems

[boovuc 1,090]

Also, was there a fuel filter on the line between the carb and the fuel pump? If so, that needs to be replaced. It sounds like that tractor was a bit of a basket case.

It's great that your trying to bring it back. As Chazm stated, now you need to find the source of the rust! As in the gas tank. Make sure it doesn't have a screen or mesh steel filter on the outlet of the tank that is also plugged up.

Give that tank a good cleaning and some fresh gasoline. Replace the gas lines, put a filter in the line between the pump and the carb. Clean the diaphragm pump out again. Clean the carb out again making sure you have a clean bowl/float/inlet screen/etc.

You'll get it sooner or later. Here is a forum link to a group devoted to the AC Garden Tractors you have.

 

http://www.allischalmers.com/forum/forum_topics.asp?FID=12&title=garden-tractors

 

Good Luck!

[wheelhorse66 10]

Is gas supposed to gravidy feed through the fuel pump.