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Worn Throttle Shaft? (With Video)

tecumseh

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11 replies to this topic

#1 New.Canadian.DB.Owner OFFLINE  

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Posted July 29, 2013 - 06:32 PM

Some of you may have seen my videos on the worn governor shaft bushing on my Tecumseh 12.5 hp OHV engine.  Well, I was using it to mow my lawn today and it seemed to be running lean: it was bogging down under heavy loads (aka mowing really long grass).  I got thinking about how much the throttle lever was bouncing around in those videos.  Anyway, I think my throttle shaft bushing may be worn out.  What say yea all, after watching this video?  If it is, how would you fix it?  p.s. that's carb cleaner I'm spraying.

 

 


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#2 chris m ONLINE  

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Posted July 29, 2013 - 06:55 PM

Yup that throttle shaft is moving all over the place. I am not sure if you can put a bushing in one of those carbs or not?

It may be just the shaft it self is worn? In any case your best bet would be to take the carb off and remove the throttle shaft to inspect it.

At that point you could see if there is enough metal around the throttle shaft hole if you had to drill it and install a bushing.

and you will see if you need a new shaft or not.

 

If you get the engine and carb numbers you might have luck finding parts and or a different carb if needed.If you post the numbers I can do some searching for you.


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#3 HDWildBill OFFLINE  

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Posted July 29, 2013 - 06:55 PM

Yep I would say your throttle shaft is worn.  It maybe just the throttle shaft as Chris mentioned.  In any case you need to take the carb off and tear it down.


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#4 OkieGt OFFLINE  

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Posted July 29, 2013 - 11:52 PM

Throttle shaft kits are over 50.00 I can buy a good aftermarket Kohler carb , not a walbro, for 61.00 delivered


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#5 OkieGt OFFLINE  

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Posted July 30, 2013 - 04:35 PM

Yep I would say your throttle shaft is worn.  It maybe just the throttle shaft as Chris mentioned.  In any case you need to take the carb off and tear it down.

Here ya go, 60.99 delivered have both needle adjstments as well

http://www.ebay.com/...984.m1423.l2649


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#6 New.Canadian.DB.Owner OFFLINE  

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Posted July 30, 2013 - 04:38 PM

Will it fit a Tecumseh, OkieGT?


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#7 LilysDad ONLINE  

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Posted July 30, 2013 - 05:46 PM

If the shaft is steel and the carb is aluminium, it's likely the carb hole is worn. I wonder if you could get someone to make a couple of brass bushings.



#8 OkieGt OFFLINE  

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Posted July 30, 2013 - 05:58 PM

If the shaft is steel and the carb is aluminium, it's likely the carb hole is worn. I wonder if you could get someone to make a couple of brass bushings.

Those shafts are brass, but either way it's wearing the carb body, that's why you have buy a new larger shaft and drill the carb out or buy a new carb.  A new throttle shaft is over 50.00, seems like I've said this before, then you have to do a good drill and install, if you screw it up, the carb is trash



#9 DH1 OFFLINE  

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Posted July 30, 2013 - 08:14 PM

I fixed one once with a piece of soft copper tubing. 1/4" found that it fit over the throttle shaft and drilled out the carb body till the copper tube fit.

It worked for me, maybe it can work on yours too.


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#10 OkieGt OFFLINE  

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Posted July 30, 2013 - 09:46 PM

Will it fit a Tecumseh, OkieGT?

I think so, depends on which tecumseh My walbro carb on my OH160 tecumseh looks the same except one less adjustment screw



#11 New.Canadian.DB.Owner OFFLINE  

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Posted August 19, 2013 - 11:43 AM

I found a used carb and governor system for $50.  Solved both problems.


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#12 OkieGt OFFLINE  

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Posted August 19, 2013 - 04:06 PM

I found a used carb and governor system for $50.  Solved both problems.

hope its good







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