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Craftsman tecumseh 6.75hp carb replacement
#1
TylerH
TylerH
I have a Sears Craftsman 6.75 horsepower lawn mower. Tecumseh engine. Can't find the Tecumseh engine number anywhere but I have some information from the Craftsman label. I have been told I need a new carburetor or a carburetor rebuild. It seems I can get a new carburetor off of Amazon much cheaper than doing the carb rebuild.
But I can't seem to get 100% certainty on whether the replacement carb is the correct one.
Model 143.056700
DOM (? Don't know what that is) 05073CD0767
195cc
Amazon description:
640350 carburetor for Tecumseh V195EA LV195XA LEV100 LEV105 LEV120 6.75 HP engines.
I can't find those numbers on the mower anywhere. Where should i look? How can i be sure this matches my mower.
Thanks so much
But I can't seem to get 100% certainty on whether the replacement carb is the correct one.
Model 143.056700
DOM (? Don't know what that is) 05073CD0767
195cc
Amazon description:
640350 carburetor for Tecumseh V195EA LV195XA LEV100 LEV105 LEV120 6.75 HP engines.
I can't find those numbers on the mower anywhere. Where should i look? How can i be sure this matches my mower.
Thanks so much
Attachments
#2
R
Rivets
R
Rivets
The carb number you need is Tecumseh #640350 which you posted. Personally I would never purchase a carb from Amazon or Fleabay unless I absolutely had to. They are not reliable and a total crap shoot. If you are mechanically inclined you can clean and rebuild the carb for less than $10.00, All you need is a needle and seat kit, plus a new intake gasket. Plenty of videos on the web to assist you.
#3
TylerH
TylerH
Thx. When i read the reviews of the carbs they seemed to be happy with them. The shop near me wanted $140 to rebuild. I wasn't sure what was involved and while i can likely do the mmechanics of the work, i didn't know if i would be able to make the judgment calls on what looked good or bad to replace or adjust or work on. Suggestions of where to get the parts you mention?The carb number you need is Tecumseh #640350 which you posted. Personally I would never purchase a carb from Amazon or Fleabay unless I absolutely had to. They are not reliable and a total crap shoot. If you are mechanically inclined you can clean and rebuild the carb for less than $10.00, All you need is a needle and seat kit, plus a new intake gasket. Plenty of videos on the web to assist you.
#4
TylerH
TylerH
I should mention... i didn't actually post that carb number. That was the amazon description of a carb for sale there. I doubt it is tecumseh. They likely just used that carb number. Still not sure that is the part number of what i have currently.The carb number you need is Tecumseh #640350 which you posted. Personally I would never purchase a carb from Amazon or Fleabay unless I absolutely had to. They are not reliable and a total crap shoot. If you are mechanically inclined you can clean and rebuild the carb for less than $10.00, All you need is a needle and seat kit, plus a new intake gasket. Plenty of videos on the web to assist you.
#5
R
Rivets
R
Rivets
Intake gasket #25756, kit #631021B. Here is the procedure I use, along with videos on the web you should be able to fix it.
Needle and seat replacement.
Remove the carb, and then remove the float bowl. Check the float bowl jet (which is the bowl screw) and make sure the jets both horizontal and vertical are clean and open. Tip the carb upside down and remove the float pin and float with needle attached. Look in the float needle passage and you should see the red float seat at the bottom of the passage. This is where a #5 crotchet hook would come in handy as you need to remove this seat. If you have no hook, but compressed air, you can blow through the fuel inlet and try to pop the seat out. Put your thumb over the passage to prevent the seat from flying who knows where. No air or hook try bending a stiff paper clip to dig the seat out.
I would either give the carb a good 24 hour soaking or have it ultrasonically cleaned at this time.
With the seat out clean the passage way with carb cleaner. Now you must find a drill bit slightly smaller than the passage way, to be used to press in the new seat. Apply a very, very small amount of a very light lube to the new seat. 3-1 oil or lighter, to help seat it better. Carefully insert the new seat in the passage way with the rings on the seat down toward the carb body. Slowly and carefully force the seat down with the back end of the drill bit. Once it is seated, check to see that it did not flip and the rings are up. Next check to make sure that the float does not have any liquid in it. If it does, replace. If everything looks correct, attach the new needle to the float and install with the float pin centered. It everything is correct, the float should seat level to the carb body, when looking at it upside down. If everything looks good reattach the float bowl, making sure that both the bowl gasket and the nut gasket seal properly. Reinstall on the engine and test unit. Remember to have patience and take your time. Good luck, but I don't think you'll need it.
PS: On the side of some Tecumseh carbs you will find a plastic cover. Under this cover will be an idle jet. Remove it and check to see that the jet is open both horizontally and vertically. You should be able to push the old float needle wire through the vertical opening.
Needle and seat replacement.
Remove the carb, and then remove the float bowl. Check the float bowl jet (which is the bowl screw) and make sure the jets both horizontal and vertical are clean and open. Tip the carb upside down and remove the float pin and float with needle attached. Look in the float needle passage and you should see the red float seat at the bottom of the passage. This is where a #5 crotchet hook would come in handy as you need to remove this seat. If you have no hook, but compressed air, you can blow through the fuel inlet and try to pop the seat out. Put your thumb over the passage to prevent the seat from flying who knows where. No air or hook try bending a stiff paper clip to dig the seat out.
I would either give the carb a good 24 hour soaking or have it ultrasonically cleaned at this time.
With the seat out clean the passage way with carb cleaner. Now you must find a drill bit slightly smaller than the passage way, to be used to press in the new seat. Apply a very, very small amount of a very light lube to the new seat. 3-1 oil or lighter, to help seat it better. Carefully insert the new seat in the passage way with the rings on the seat down toward the carb body. Slowly and carefully force the seat down with the back end of the drill bit. Once it is seated, check to see that it did not flip and the rings are up. Next check to make sure that the float does not have any liquid in it. If it does, replace. If everything looks correct, attach the new needle to the float and install with the float pin centered. It everything is correct, the float should seat level to the carb body, when looking at it upside down. If everything looks good reattach the float bowl, making sure that both the bowl gasket and the nut gasket seal properly. Reinstall on the engine and test unit. Remember to have patience and take your time. Good luck, but I don't think you'll need it.
PS: On the side of some Tecumseh carbs you will find a plastic cover. Under this cover will be an idle jet. Remove it and check to see that the jet is open both horizontally and vertically. You should be able to push the old float needle wire through the vertical opening.
#6
TylerH
TylerH
Thanks for all the work you went through in typing it out. I've got to admit that is more than I think I wanted to take on. That's partially why I thought just replacing the carburetor would be the easier way to go. But I'm still left with the question as to how to verify that what is being advertised on Amazon, matches with what is currently on my lawn mower.
#7
R
Rivets
R
Rivets
I don’t know of any way to verify anything puchsed on Amazon. That’s why I never buy anything there. There are people on this forum that do, but I guarantee my parts and work so I don’t take chances.
#8
TylerH
TylerH
Appreciated. I guess what I'm trying to ask though is how do I verify the part number that is currently on my lawn mower? Not whether I can trust what is posted in the Amazon ad, but how I verify what is currently on my existing lawn mower. The sears label doesn't seem to have real specific info as to the tecumseh engine model? Or does it?I don’t know of any way to verify anything puchsed on Amazon. That’s why I never buy anything there. There are people on this forum that do, but I guarantee my parts and work so I don’t take chances.
#9
R
Rivets
R
Rivets
Doesn’t take a lot to verify the engine. Just type in the number, that’s what i did to justify my reply. I dont know any other way to prove it to you. https://www.partstree.com/models/143-056700-craftsman-engine-made-by-tecumseh/
#10
TylerH
TylerH
When you say "the number" it seems you are referring to the number on the amazon ad. I don't know where on my lawnmower or what number from the sears label, is the one to use/match since the sears label seems to refer to the craftsman model but not the tecumseh engine model.Doesn’t take a lot to verify the engine. Just type in the number, that’s what i did to justify my reply. I dont know any other way to prove it to you. https://www.partstree.com/models/143-056700-craftsman-engine-made-by-tecumseh/
#11
R
Rivets
R
Rivets
I’ve tried to do the best I can for you, but if you need a 1000% proof you’ll not get it from me. Hope someone still has the Tecumseh micro fiche cards and a reader to give you the absolute proof you want, I don’t. There are a lot of other service techs on this site who are way smarter than I am, maybe they can help you. Bye, Bye, Bye.
#12
TylerH
You have just said that the number on the amazon site is a valid tecumseh number. But that really is not in question.
But again, maybe i have misunderstood.
Either way, thanks for your efforts.
TylerH
I guess maybe I'm just not very good at articulating the situation or something? I'm not asking for a thousand percent proof. I'm just asking if there's a way to try to confirm that the model number on the Sears/craftsman label, matches that model number that I posted from the Amazon site. I don't feel like you thus far have said 'yes those two match' or 'here's how you find out what engine is being used in the Craftsman lawn mower.'I’ve tried to do the best I can for you, but if you need a 1000% proof you’ll not get it from me. Hope someone still has the Tecumseh micro fiche cards and a reader to give you the absolute proof you want, I don’t. There are a lot of other service techs on this site who are way smarter than I am, maybe they can help you. Bye, Bye, Bye.
You have just said that the number on the amazon site is a valid tecumseh number. But that really is not in question.
But again, maybe i have misunderstood.
Either way, thanks for your efforts.
#13
B
bertsmobile1
B
bertsmobile1
Tyler.
A carb is a carb is a carb is a carb is a carb
Provided that the throat is big enough to pass enough air/fuel mix into the engine and the main jet is close to the right size for that carburettor then any carb can be made to work on any engine and this applies even to lawnmowers.
If I pay $ 100 US to any one of 20,000 people in India they will give me a 100% perfect score on AmmoZone or Evilpay .
This is why, just like Rivets I don't source parts from either of them
The more lazy you are the higher chance you will get ripped off.
Rivets gave you the best answer
A rebuild kit & new gasket
No real skill or deep judgement required
Clean , remove old bits, replace with new bits put it back together.
The only time I replace as standard carb on a mower is when the holes that the butterflys goes through are so big the butterflys can not close fully
A carb is a carb is a carb is a carb is a carb
Provided that the throat is big enough to pass enough air/fuel mix into the engine and the main jet is close to the right size for that carburettor then any carb can be made to work on any engine and this applies even to lawnmowers.
If I pay $ 100 US to any one of 20,000 people in India they will give me a 100% perfect score on AmmoZone or Evilpay .
This is why, just like Rivets I don't source parts from either of them
The more lazy you are the higher chance you will get ripped off.
Rivets gave you the best answer
A rebuild kit & new gasket
No real skill or deep judgement required
Clean , remove old bits, replace with new bits put it back together.
The only time I replace as standard carb on a mower is when the holes that the butterflys goes through are so big the butterflys can not close fully
#14
TylerH
TylerH
I don't doubt he gave me a good answer... for someone who wants to do a rebuild. It's not something i care to undertake, so it's kinda an answer to a question i didn't ask is all.
But again, i appreciate the effort that you fine technically talented people have taken.
I can order on amazon for $25 canadian to my door in one day. Bolt it on and if it doesn't work, then try to rebuild the old one i guess. Potentially return the old one. I was afraid that perhaps mounting holes and openings might not match up if models were wrong. But sounds like they mostly all fit different applications i guess.
Just not sure I have the time, patience, products and tools for the rebuild. I don't need the mower to run like a ferrari. For $25 and very little effort, i can switch to plan b if no good.
But again, i appreciate the effort that you fine technically talented people have taken.
I can order on amazon for $25 canadian to my door in one day. Bolt it on and if it doesn't work, then try to rebuild the old one i guess. Potentially return the old one. I was afraid that perhaps mounting holes and openings might not match up if models were wrong. But sounds like they mostly all fit different applications i guess.
Just not sure I have the time, patience, products and tools for the rebuild. I don't need the mower to run like a ferrari. For $25 and very little effort, i can switch to plan b if no good.
#15
B
bertsmobile1
B
bertsmobile1
Well it is your money
The mounting holes are fairly well standardized across the whole industry
However you can always ask the vendor .
We gave you the correct answer
You asked the wrong question
As it is your money then you can do with it as you please but stop to have a think.
Ammozone / Evilpay will take around $ 5 of your $ 25 and Canada post another $ 5 to $ 10 .
The vendor would have to be making a profit on top of that so how much did the factory get for the carb ?
And remember their was freight from China to Canada as well to come out of it .
The factories in China sell 100% of their output
What gets rejected by QC goes into the secondary market where people who are very poor will attempt to work out why it was rejected the repair them and sell them back into the wholesale market
What they can't fix get resold to even poorer people who do the same.
Eventually you end up with scrap and depending upon the current scrap prices for zinc, aluminium. plastic & brass some one will pull it apart for scrap or onsell it into the whole sale market knowing that there are millions of idiots out there who believe in Santa Clause and honestly think a $ 25 carb is just the same as a $ 125 carb without the $ 100 of excess profit that the thieving parts retailers put on their parts .
The mounting holes are fairly well standardized across the whole industry
However you can always ask the vendor .
We gave you the correct answer
You asked the wrong question
As it is your money then you can do with it as you please but stop to have a think.
Ammozone / Evilpay will take around $ 5 of your $ 25 and Canada post another $ 5 to $ 10 .
The vendor would have to be making a profit on top of that so how much did the factory get for the carb ?
And remember their was freight from China to Canada as well to come out of it .
The factories in China sell 100% of their output
What gets rejected by QC goes into the secondary market where people who are very poor will attempt to work out why it was rejected the repair them and sell them back into the wholesale market
What they can't fix get resold to even poorer people who do the same.
Eventually you end up with scrap and depending upon the current scrap prices for zinc, aluminium. plastic & brass some one will pull it apart for scrap or onsell it into the whole sale market knowing that there are millions of idiots out there who believe in Santa Clause and honestly think a $ 25 carb is just the same as a $ 125 carb without the $ 100 of excess profit that the thieving parts retailers put on their parts .
#16
Charlie8d
Charlie8d
If you are set on trying a cheap carb, buy 3 of the one listed on Amazon. You may get one to work OK. Look at all their carbs & NOTICE that they all have reviews that are 4 1/2 or 5 stars ! HA !