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Rebuilding Carbs


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#1 BairleaFarm OFFLINE  

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Posted January 11, 2014 - 04:47 PM

Maybe I over think it or its easier than I think it should be but I'm uncomfortable rebuilding carbs. It seems there are several different kinds of rebuild kits. Do you all use the ones where you have to replace the Welch plugs? Seems the cheaper kits just have the bowl gaskets and needles. Assuming your throttle and choke have no play is it normally just cruded up internals that make the carb need a rebuild?

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#2 jabelman OFFLINE  

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Posted January 11, 2014 - 04:58 PM

Its not rocket science but patience and take your time and a good clean area. I generally buy the most complete kits. Also price out new upper or lower halves or complete carbs sometimes its cheaper to go new. Theres some good info on the web to that give step by step instructions.
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#3 trowel OFFLINE  

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Posted January 11, 2014 - 05:04 PM

Depends on the carb the kit applies to, some kits are multi-kit for several type such as for Tecumseh or Lawn Boy.

When compleatly rebuilding a carb and i mean total rebuild, i used the full kit, all the gaskets and both welsh plugs so commonly used by Techumseh. Bigger carb such as Carter and Stromberg with auto linkages and such become easier.

Rebuilding carbs can be scary at first but over time it becomes a peaceful sit down past time, don't rush and just don't drop the float needle !


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#4 BairleaFarm OFFLINE  

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Posted January 11, 2014 - 06:00 PM

What makes you decide on a full rebuild or a partial one?

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#5 trowel OFFLINE  

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Posted January 11, 2014 - 06:05 PM

What makes you decide on a full rebuild or a partial one?

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Depends on the age of the carb, condition and the person asking.

For myself, if i have the money, total soak, clean and rebuild.


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#6 New.Canadian.DB.Owner OFFLINE  

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Posted January 11, 2014 - 06:11 PM

I find 99% of the time it is just crud in the bowl & passages.  I cleaned (which admittedly is different from rebuilding) nearly 20 carbs last summer on various push mowers I bought & sold.  At most, I changed the bowl gasket & inlet needle seat.  I changed the inlet needle once, but that's because it slipped down the sink drain.

 

The worst one I soaked in Coke for a week.

 

Before 2a.JPG Before 2b.JPG Before 2c.JPG


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#7 jabelman OFFLINE  

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Posted January 11, 2014 - 06:55 PM

One more idea is maybe find a junk one at yard or somewhere and just take it all apart just to get an idea of what to expect so you dont have to practice on the one you need to rebuild.

#8 BairleaFarm OFFLINE  

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Posted January 11, 2014 - 07:09 PM

I've rebuilt a couple before and they seemed to do well. I'm not really worried about doing it. I guess it's more on which kit to use. I'm the engine runs better after I get done I guess I did it right lol

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