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Garden Tractors Discussion Forum

Re: JD 112 No Fuel to Carb? HH 100 Tecumseh

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joe csuti

05-16-2013 18:55:29
70.111.202.23



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MNGB is correct about rubber seat at bottom of float needle bore,hole in same either plugged or damaged by carb cleaner.

According to my microfiche cards for eng/spec# you gave carb pn 632424 and correct pn for repair kit is 632347,the HH100 eng used five different pn carbs & there are three different pn kits avail for the five carbs,one kit doesn't work with all carbs,the link NMGB provided is the correct pn kit.


You can buy the needle/seat seperate,but you're probably better off getting kit as you may run into eng surging/hunting for it's speed after you get running,a common problem on tecumseh eng is idle passages in carb body get plugged/gummed up when sitting for a long time causeing surging when running,the only way to cure problem is remove welch plugs(you'll probably have to damage/destroy to remove)run a fine wire thru ALL passages in carb body & blow out with compressed air.

IF/when you replace float needle seat,one side of seat has a ring/ridge,other side flat,ring side of seat goes into needle bore & seals hole at bottom,flat side of seat faces float needle.

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BillM2

05-16-2013 19:34:25
174.227.137.23



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 Re: JD 112 No Fuel to Carb? HH 100 Tecumseh in reply to joe csuti, 05-16-2013 18:55:29  
Is there a diagram of this carb somewhere?
I did take the bowl off, let the float hang, and cranked the engine. No gas flowed. I'm soaking the carb overnight to see if that frees up

Anything.



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joe csuti

05-17-2013 03:19:26
151.198.126.63



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 Re: JD 112 No Fuel to Carb? HH 100 Tecumseh in reply to BillM2, 05-16-2013 19:34:25  
If the float needle is still connected to tang on float by small clip & drops with float,then the problem is as has been said-hole in float needle seat plugged or seat damaged,if needle disconnected from float then needle stuck in seat due to dirt/gum or the more common cause,needle seat age hardned/distorted & needle sticking in seat,the only cure for this problem is replace needle/seat.

For assembly drawing of carb goto link below & lookup mod/spec# in tecumseh eng parts listing.

IF you have to remove seat from needle bore hole use a long #4 sheetmetal or wood screw & thread into hole in seat & pull seat out of bore,if you do pull out you will need a new seat as seat will be damaged when removing.

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BillM2

06-10-2013 14:05:11
174.252.34.0



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 Re: JD 112 No Fuel to Carb? HH 100 Tecumseh in reply to joe csuti, 05-17-2013 03:19:26  
So I cleaned thoroughly and got the engine to run. I may have gotten some fuel line rubber in the carb (I've replaced the old one) because now the engine surges. Or is an adjustment needed? When I engage the mower's belts, it doesn't surge. Any further advice?



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