Carburetor Rebuild on 4-7HP Tecumseh Snowblower Engine Part 2/2
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- เผยแพร่เมื่อ 8 ก.ย. 2024
- In this easy to follow video I show you how to rebuild the carburetor on an older 7HP Tecumseh engine on a snowblower. The same procedure will apply even if your engine is not mounted on a snowblower.
Buy carburetor kit here; www.repairclini...
Visit my channel for more repair videos; www.youtube.com...
![Tecumseh 640266 (640288) Detailed Carb Clean [4K]](http://i.ytimg.com/vi/tELlcbxgnww/mqdefault.jpg)
Thank you - I have never commented on a video before - you do an excellent job doing these videos, explaining and showing what is going on. Your delivery of information is first-rate. Thanks again.
Great Video. I have now completed my small engine repair course. Your videos touch on so much more than the material we were given. Thank you, Jason from Manitoba
Thank you so much for making this video! Excellent job of walking us through the process. I have a 1978 Ariens snowblower - 5hp Tecumseh engine with the exact same carburetor. I have never worked on a carburetor. Thanks to your video not only did a I take it off, throw a kit in it, and re-assemble it. It fired-up on the third pull!!! It don't leak or anything. Again Thank you.
Your videos are much appreciated! I bought a 20 year old Simplicity snow blower last year. It ran great for a few storms. Then it ran rough and gas was gushing out of the carburetor bulb. I had no idea what was wrong. Looked up TH-cam for help and discovered your videos for rebuilding carbs. The brass float wasn't floating because of fuel leaking into it. I followed your videos for taking apart, replacing the float, adjusting the idle screws, governor arm, and throttle screw. It started on the first pull and is adjusted just right. I've never done anything like this before so congrat's for posting these videos!
That's a great video!
Our snowblower sat outdoors, partly covered for a number of years (at least 10) and with fresh gas did start and run for a few moments briefly this fall, but then wouldn't start at all.
I got a rebuild kit and new float and followed the video instructions and it started, and ran, on the the first try; and restarted easily.
So thank you very much for the excellent presentation. It was clear, and I especially appreciated the close-ups showing exactly what goes where. Also appreciated your explaining that drill bits could be used if the special tool wasn't available--it wasn't.
Just did this on a 1978 Ariens with a H70 Tecumseh. Your video was a great help. After the rebuild and replacing the float because there was gas inside it, the old beast is running like a champ. Thanks for such a detailed, easy to follow video!
I'll admit. I have ALWAYS DREADED learning how to work on a carburetor thinking it was going to be super complex. Watching this has given me the confidence to go tackle the issue with the snowblower! Thanks for posting this!!!!!! If I would have tried to do something like this, I would get bleeped out the entire time while getting frustrated LOL
Thanks for the clear set of instructions. Our tired old snow blower runs like a new machine. We bought a kit for $20 and rebuilt the carb according to your instructions. This will make the rest of the winter in Anchorage a lot more bearable.
I have an Areins ST724 that has the same carb. I couldn't figure out how to assemble after taking it off so my son could clean it. Your video solved the adjustment problem and was awesome in helping me to get it back on the engine.
thanks, greetings from Canada
Your videos are so helpful all I have to say is thanks :)
Best video on the subject I have found. Helped me finally figure out how to put the little piece on the float. That little spring was a mystery to me until I saw your detail of this area.
Thanks for helping me get that engine running again.
Great Video. Saved me a lot of frustration in repairing and keeping my 40 year Craftsman 7/26 snowblower running. Carb is repaired and running great again.
Thank you for sharing your knowledge!! I rebuilt my first carburetor and has brought new life to my Sears Power Brush! With sincere gratitude...THANK YOU!
thanks...it was the float..got the new plastic version. Now my engine starts up in one pull...thanks so much! You saved me a ton of money by teaching me how to do it myself! :)
Great video Dony.I recently purchased a used rototiller with the carb detached,got it home,installed the carb and would only run when gas was poured in the carb.I took it back off,ordered a kit,installed it,still the same thing,took it back off again this time I removed the welch plug and to my surprise their was a live small grub worm living under it along with dirt,strangest thing I ever saw! Cleaned it out,back together and runs like a champ now.True story.
lol
I like your clean and well organized workshop 👍
Hello Don and all in the morning I will start my cleaning on my 6 hp torn snow throw built in 2000 I believe I will not remove for now I will remove bol and clean and float and needle and spray carb clean.
I will try this way first. Then put back and removed all gas with a baster add fresh gas a bit and remove again. Then add more fresh gas just enough to see if it starts. Plus new spark plug.
Don thank you for all you do for us.
Snow starts tonight.
Thank you, I have a MTD snow blower from the mid 1970s and the information and guidance you provided helped to keep it running. Thanks again!
Excellent guide! Only advice I would add would be to almost completely unscrew the main needle valve in the bowl nut before screwing it onto the bowl. If the needle is too far in from the factory, you can ruin it when you torque the bowl nut.
Also the idle mixture screw needs to be installed with the bowl facing straight down otherwise the emulsion tube can be damaged.
You talk about installing the needle seat with the ridge facing the bottom of the carb. To me, it looks like you installed it facing the top of the carb. You did have the carb upside down in the video. If the ridged end goes into the hole first, then it is truly facing the top of the carb. Is this correct?
Other than that point, it is refreshing to see someone present material like this in a professional and methodical approach. Keep up the good work.
Chris
Great video!! My snowblower had been whimpering for a while, and it is running strong now!! Thanks for sharing your wisdom.
You should buy a Gunson colortune so you can see whats happening inside the engine after you clean and try to tune the engine.
All your videos are great and full of information don, I don't understand how anyone could dislike them lol
usually jealous and boring people dislike them
Had to replace the needle and seat on my snowblower. Thank you for the tips.
Didn't do a complete teardown... was just aiming to fix the gas leak and it wouldn't start. After the snowblower started right up to my surprise.
The old seat was completely clogged. Forced it out with compressed air which made the bowl float leak. $11 in parts for the two gaskets, clip, needle and seat...
+Clayton εжз that's good
donyboy73 Had to replace the worm gear too but that's another story. Nothing like a weather report to light a fire under your butt.
Awesome video. I rebuilt my 1998 simplicity carb, much newer but very similiar. Thanks for making seem so easy. I was very eager to dive into this project after seeing your video.
Thanks dony, i adjusted the idle today as your video show us, my snowblower run as a new one!!! Perfect, thank you for your experience!
Thanks for these videos donyboy73. These are some of the most professionally done DIY videos on TH-cam and I admire your motivation to help people like me (non-professional) make basic repairs to their own equipment. Blessings!
you're welcome
The mechanic returned my machine and sAid he was frustrated with it.
I followed your instructions cleaned emulsion tube and a blocked primer tube
My machine started first pull THANKS
raymond frank maybe you're the real mechanic
you're welcome and greetings from Ontario Canada
I've watched several of your videos so far and they are great. Your work is very thorough and clean. Thank you.
Thanks for the information. Saved me from buying a new blower. I have a 1970 Ariens that is made very well but I had to run it with the choke partially on. Now it runs fine thanks to your video.
you're welcome, make sure you are subscribed
@donyboy73, thanks for this video. My snowblower only runs if I use almost full Choke. So I need to do a rebuild kit.
Most professional self-help video series I've seen. If you're not teaching engine mechanics in school, you should be. Thanks for the help. Bob Z.
thanks bob
Enjoy the vids donyboy73, thank you. I performed all the steps in Part I & 2, and rebuilt the entire carb with kit on a Tecumseh 7HP. Installed new plug, fuel line and primer hose, fresh gas, changed oil. Cleaned the carb thoroughly. Engine will not start. The electric starter and recoil works. Any other areas to look at? Thx for the help.
Another GREAT video Don.
thanks
BRAVO! Dony, you do very nice work. Thank you for sharing your knowledge. We all appreciate your wisdom and your ability to teach. We have learned so much just from watching your videos. It's also nice to know your videos are available for a refresher course ;)May God continue to bless you, your family and your business.
Gracias, Armando.
Here in the catskills NY we had a hard freeze last night . It has been up in the high 70s all week even hit 83 one day . This is weird weather ! If its global warming bring it on I love the warmer weather.
very thorough. wouldn't have tried to do this job otherwise
Here in Niagara Falls we all ready have 2ft. of snow on the grass.The most we got this year is 1ft.And I snow blowed with my snow thrower
Great video, I have very poor eyesight when it comes to working on carbs, I would never be able to get that little spring in the hinge pin for the float.
I have very bad luck working on carbs, things don't run after I mess with carbs...LOL..
But I learned alot Donny, Thanks for your videos.
Just rebuilt my tecumseh carb off a 7hl kohler engine which powers a late 1900s walk behind tractor!
This was a good set of videos. Thanks Dony
Another awesome vid! makes me wish I had a carb to rebuild... Wait, I do have that old lawnboy that needs some work...
Sounds nice for an old blower.
Thank you! Just replacing a carb actually but this helped me understand the function and install much better. Cheers!
Thanks for the great video!
I was always taught never to use gasoline to clean carbs because of its volitility and lower flash point in comparison to other cleaners you could use like kerosene, diesel or mineral spirits. But I guess if your careful enough not to clean them around open flames, sparks and keep the shop well ventilated you'll be fine.
Hello Dony. thanks for the instructions. I have a (I believe it's 5HP) MTD Snow King Model 317-550-000 with the Tecumseh engine. I was given this snowblower. It had sat for years. I cleaned the carburetor, but it still won't run good. Perhaps I didn't do a very good job...not like you did. I'm going to get the repair kit like you did. The main problem with my carburetor now is that it will only run on full choke making the control lever useless. When I try to "off choke" it dies. I believe I have everything out of adjustment now as I've been tweaking it to make it run on full choke. Any other pointers much appreciated. What I'll be doing at any rate is follow your video instructions. Thank you again.
J Nieto .
Nice video...much better others I watched with similar instructions. I think I can go ahead and rebuild mine...Thank you!
Nice an clean detailed carb job wtg! cheers
excellent video, wish I'd had it when I rebuilt mine
Excellent video once again. Thanx
Great job dony!
Nicely done! Very detailed and great job on the video images.
Hey Doc, You sure do a good job! AttaBoy!
Your videos are getting better and better Dony, great job!
thanks man
Awesome exactly the solution to what I needed. This was Perfect Dony!
Thanks!!!
VERRY NICE VIDEO !!!
THANKS !!
greetings from Germany
Donyboy73 great videos that's for posting them for us, I have a 1977 Ariens snowblower with the same card in this video but mine doesn't have a primer, now I went through and cleaned everything replacing the gaskets, float needle and the seat, also put new fuel lines, filter, and shut off valve and got it running but my problem is it'll only run on full choke I tried cleaning the carb three times thinking I missed something and I have the same issue, do you have any suggestions thank it'll be greatly appreciated,
Thanks Ryan R
A1 job don. i sure like watching these videos.
on these engines i often find that the exhaust valve leaks and causes similar problems
definitely that carb needs to be cleaned and maybe install kit #631021b
usually on the older carbs the tube is permanent, on the newer carbs the emulsion tube comes out
nice job it start like it was brand new sweet
When you adjusted the float, it looked like you had to push down on it to get it to touch the adjusting tool or drill bit.
Did I see that right?
thank you this video was very helpful
you may want to check the carb adjsutments
Awesome video Dony, thank you
Ok thanks ill have a look at that by taking head off and clean valves it started Doing it after carb was clean
push the tab on the float toward the float itself
yes you can
dony, carb was gummed up -never started. i used your video & now starts. replaced on 5.5hp 2007 tecumseh snowblower parts: needle kit, bowl, float, bowl nut, tiny washer in needle hole. BUT after i put back everything, new issues are: 1. engine smells like burning when started. 2. case where carb is attached vibrates. 3. throttle revs at high speed when lowered does not slow down. 4. when auger engaged - engine revs much slower. please help or do i take it to a shop - your videos are awesome
check all the linkages
very informative! 5 stars and on my favorites....thank you/merci!
Still looking for a vid where you pop out that round plug that s a little smaller than a dime. I am still having trouble with 2 cabs after doing everything you did. Also I have one that, if I don't turn off the gas it will empty the tank out through the air intake. I replaced the needle and seat.
I was wondering about that, I am sure his carb is probably dirty and needs a rebuild, it's gas oil mix, it starts ok in the summer but it won't in the winter
that's good man, is there a video of them up?
thanks dude.
very helpful and clear.
thank you sir
Nice video. Thank you.
I rebuilt mine (5hp MTD snowblower) and all seems ok now. One difference I noticed is that my fuel bowl nut only seems to have 1 hole. But I can make the engine blow black smoke by richening it. So I think it's ok.
One question. The throttle lever that sticks out of the sheet metal covering is broken in half. Do you know where I can get a replacement?
I do have a photo, but it won't let me post a link to it in the comments here.
Great I found one I haven’t watch yet
thank you!
Great video, Don!! Real helpful.
might be the linkage configuration causing the overspeed, make sure it's ok
great vid . keep them coming
thanks for the video, very good information.
Perfectly done.
dony quick question - my craftsman lawn mower with similar tecumseh carb got wet from rain, then I went to start it and it was about to start then gave a loud pop little explosion and white cloud came out the muffler and it wont start anymore - do you think it was moisture that got in there and what did it destroy? ty
I noticed when you were reattaching the linkage there was some play in the governor arm... Mine doesn't seem to have any play on my 7hp that I am working on... Do you have any videos about the governor for these older 7's? If not could you cover it an upcoming video? I suspect I'm gonna need to work on this next...:) thank you again!
i'll have to make a video or replace the bowl that does not have a drain valve
Between the two videos, the only thing I missed is the nut that kept turning in Video 1 and how to resolve that problem. Was the nut stripped or was the bolt broken? What was done to repair it if anything? I'm guessing the nut was frozen on and the whole bolt loosened from the engine? Last I wanted to know if you show a video on replacing the welsh plug?
Thanks
wow, thanks a lot
DonyBoy, Thanks for the video. I think there is a small error. The drill bit size to test the float is 17/64 not 11/64 as you state. At least my float looks like yours but I needed the larger bit. If you think I'm wrong, I'd like to know.
great instructional vid thanks
yes behind in editing, you will see soon vids from a year ago
Is there a way to bypass the safety shutoff on an Ariens 4 HP Model 922024 snow-blower with the attachment clutch engaged(auger/impeller) once the Interlock lever or Traction drive levers are released on the handles to keep the engine running? I'm fully aware of the risk but hate to disengage the attachment clutch every time just to keep the engine running. Thanks, great videos to watch!
Smashing, so on this type the emulsion tube does not have side pin holes like on other engines?
Nice tutorial :-)
it may also be low on compression
I have that special tool for those carburetors. It makes rebuilds a breeze.
Quick question donyboy...I rebuilt my tecumseh carb on an old H50 for my woodchipper, but I didn't replace the float. I noticed that my engine runs great, but when I shut it off, fuel continues to enter the carb and it soaks my muffler. Is this an issue with the float or float setting? Thanks for the great informational videos!
donyboy73, thank you for all your videos... they're awesome and VERY VERY helpful. I followed your video step by step and cleaned out the carb, reassembled, etc etc. However, a few seconds after putting gas in the gas tank, fuel began to pour out of the carb/air filter. I checked the float, shaking it and listening for liquids and there was nothing. Do you know what is causing this? Thanks again for your great videos and look forward to reading your response. Have a nice day.