Morning.

Off to the shop to do battle with that damn carb again this morning. I am giving this carb one more shot today and if it won't run I am ordering a brand new one off E-Bay I just need this thing to run so I can move snow. No welding today.......

 

It's a Screw with the 5.5 bed.

 

Nothing like watching a police car leading the field around under caution

 

Some of those pin holes are difficult to get at and ream. Remove that little float valve gasket and soak it in carb cleaner (over night). Use tip cleaners (welders) to ream what you can.

Fuel lines like to deteriorate from the inside out as well.

Got to have a good filter with a finicky carb or your always screwin with the damn thing. Hate messing with those things

 

I ordered a new carb an hour ago, it's taken to much of my time already and it still won't run even with the setting from the service manual. Even after dressing the points with a file and resetting them all I can do is get it to barely idle with and I have fuel running out of the intake. I found a 3cyl Yanmar diesel on E-Bay so I my do a repower if this keeps up.

 

Yea, that happens when the needle valve seat disapears, this -



Red thing to the right. They fall out or get blown out lol.

Yanmar ? Weren't those some kind of lite green color ? Nice little diesels tho.

 

Kinda funny......

 

Mine has a rubber nose on it so that's not the problem. The Yanmar's I have seen have all been black but they were all in Deere 332's and 430's.

 

Doesn't matter. That's the auto fuel shut off on those carburetors. Rubber or not, they require a seat and is the problem. It's the only way fuel can gravity feed into the manifold, (that much anyway). There's nothing stopping it.

Yea, Yanmars were an ugly lite green for a number of years. -

 

I replaced the seat cup and the valve when I went through the carb this summer and all the part's are there that I put in it.

I can get this one cheaper than I can a gas engine.

http://www.ebay.com/itm/John-Deere-3...item336e87e926

 

Iduno then, sometimes it looks like they're there, since the aluminum cast is shaped like one. Takes a good narrow flash light to see in that chamber real well.
I didn't mention the obvious float problems that can occur, like being bent or having a pin hole in one, fills with fuel which prevents the float from coming up and seating the valve.
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More power ? Shoot, a 3 cylinder, it would have to be.

 

Yeah I am just tired of it, the problems started when I put the new fuel pump and which leads me to believe that it's just worn out and can't handle the increased pressure and flow from the new pump. It's 33 years old and was never touched before I got it from what I can see and I dug into it I could see pitting, rust, and oxidation from the ethanol in the fuel.

I am really tempted to do the repower but I just can't justify it right now even though it's really cool.....

 

That's a big motor, if you need to push fueling lol. Walbro has pump carb sets, they manufacture both. Might be a little pricey. So with a pump it's got to be fouling the plugs pretty quick. What size is the engine?

 

It's just a little Kohler K301 12HP, and you're right it does not run very well or very long the way it is. I was so ticked and tired of it today that I almost loaded it on a trailer and dumped it at the Deere dealer here in town and said fix it!!! I don't want it back until it runs.......

I will get it running, I had a nagging feeling that not replacing it earlier was going to come back and bite me in the *** later.

 

I will not make the same mistake on the 317 when I get to redoing it.