carb

[DRD in Pa]

I have a 801 series tractor that is giving some carb problems it has a tsx-662 carb on it. Is it better to rebuild these carbs or buy a new one? How does the new Zenith carbs compare to the old ms carbs? I have called around to a couple places that do complete carb rebuilds and they want around $225 plus shipping to rebuild it. I think this is a little high when you can buy a new one around $300. I tried a basic rebuild kit in it with no help. Any advice or help would be appreciated.

 

[DaveH(NY)]

Go get a gallon can of the carb soak the big chains like Autozone carry them has a basket in it for the carb and parts to sit in. Soak it over night get a full rebuild kit for the Marvel carb, blow out all of the passages after the carb soaks over night with compressed air and rebuild, should be fine after that. The Marvel carb in my opinion is a better carb then the Zenith replacement

 

[Anonymous-0]

And be careful with that dip-can stuff. Ate right thru the chem gloves I used and I ended up with a real nasty chemical burn on one finger that took a long time to heal.

 

[souNdguy]

depends on the condition of the carb.

I tried rebuilding the carb on my 660 2x and never got it going.. it was so eat up from this new gas and moisture that it rotted out the inside. I opted for a new ms repop style carb.

I have a zenith carb on my 850 and it's generally a good unit.

soundguy

 

[old]

But did you let that carb soak for 24 hours in carb cleaner and then use a small piece of wire in all the passage ways??? If you didn't then you missed some dirt/rust. My self I would re-rebuild that one or buy a rebuilt M/S carb I would not use one of those new carbs since most are junk

 

[awhtx]

An old time tractor mechanic told me the best (and cheapest) carb cleaner you can buy is plain old Muratic Acid. Mix a cup of acid in a gallon of water and soak the carb parts. As others have said use a wire and compressed air to blow out all of the passageways.
Caution- don't put any pot metal parts in the acid as they will disappear. Cast iron and brass as used in the old MS carbs is OK.

 

[souNdguy]

add straight aluminum to also remember some rebuild kits are supplying aluminum choke flappers..

zinc alloys, and any of the alloys with the cad looking plating.. including those new shiny gold collored carbs that tsc used to sell. the newer black painted cast iron ones should be ok though..

soundguy

 

[WA-Hal]

That stuff can eat right through the can, over time. 2 or 3 years ago, I had a gallon can of carb cleaner sitting on the shelf of my shed, as it had for years. One day I opened the shed door and smelled an awful odor--the carb cleaner had developed a leak and most of a gallon had run out and ran onto a bunch of stuff underneath. Most of that stuff was ruined, and the shed STILL stinks. The spill on the concrete floor resists any cleanup I have tried.

I now store the replacement can of cleaner in a metal bucket. Carb cleaner is sure expensive these days. I think I paid over $20 for the replacement gallon. But it works pretty well for cleaning carbs and other small parts that need to get extremely clean. Just don't leave them in there too long, and avoid anything that has any plastic parts--I have had them dissolve and disappear.