thdrduck

Member
I have a WD that won't start. The carb looks pretty nasty and I must admit I have neglected this old tractor. I have a spare carb that I thought I would rebuild and install just because. It's a Zenith and the only number I can find on it is "12". Dosn't give me much to go on as far as getting a kit for it. Ideas?
 
You would be very wise to install a kit in a carb that you actually know already works. Your spare carb could have issues you are unaware of.
 
How a carb looks on the out side says nothing of how it is on the inside. WD should have either a M/S TSX159 or TSX422 on it. If it you have the correct Zenith it would be a 8979. The M/S carbs are easy to rebuild and cheap to rebuild as in around $20 for the kit
 
(quoted from post at 22:14:39 04/17/18) How a carb looks on the out side says nothing of how it is on the inside. WD should have either a M/S TSX159 or TSX422 on it. If it you have the correct Zenith it would be a 8979. The M/S carbs are easy to rebuild and cheap to rebuild as in around $20 for the kit

If I was a betin man... I would bet she looks about as bad on the inside as it does on the outside.

I took the phantom Zenith apart and cleaned it up. The parts that weren't screwed up looked pretty good so I made a gasket for it and put it back together. I'm out nothing. I'll stick it on and see what happens. Tractor is 50 yards from the shop in butt deep snow, I know, I'm bad.
Anyway tomorrow is supposed to be around 50 deg. so may give it a go.

P.S. so where is the # marked on the carb???
 
Older Zenith Carbs had a tiny plate riveted to them that had two numbers on it. The outer number was the tractor manufacturer number and the inner number was Zenith's number (I think, it's been a while, but one of the numbers will id the carb).

Really old carbs (like possibly unstyled WCs) may have a different type of plate. The biggest issue though, is that if this little plate is gone, which it often is, there is no definitive way to id the carb other than detailed familiarity with the family of carbs.

This photo is from a D10 carb, 1964.

mvphoto15066.jpg
 

Thanks. Mine has a plate like that but I can't read it. I'll hit it with a wire brush and see if that helps. Anyway, it's back together. Was something to do in a warm basement on a cold crappy day.
 

Stuck the cleaned carb on and she did as she always used to..."crank, crank vroom". Has a little miss but will run out the old gas before I do too much messing with it.

Thanks
 

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