beebad
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10hp Tecumseh engine on MTD 665E snow thrower: gas squirts as I prime
I was getting ready to jump in and start some maintenance on a unit not used in a while. I planned to let some sea foam soak in the fuel system by priming it and letting it sit overnight. Joke was on me. When I primed it i noticed fuel dripping from the other side of the motor. Now I have to start taking stuff apart to investigate and see if it is just a varnish plug or a complete rebuilt or replacement is needed. First I need a diagram of this engine. I think I found the oil drainage pipe but I really need an engine manual. Any Ideas? TIA
post edited by beebad - 2025/01/09 10:22:24
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SRTsFZ6
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 06:24:05
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A full ENGINE model # would help...
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 10:14:02
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Of course. I forgot. i really don’t want to break anything on this engine. It is in excellent condition except that is has been cranked in a few years. The choke knob just pops off? I have a picture of label…. model: HMSK 105 159908B engine famdamily: 1TPXS.3582BF displacement 358. DOM: 1277E i forgot to explain the picture, there is green @$&@$# coming out of the carb. TIA
post edited by beebad - 2025/01/09 16:29:06
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SRTsFZ6
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 13:15:41
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 16:32:04
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Scott thanks, the link goes no where.
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Mikel1
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 17:09:47
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Link works for me
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Mikel1
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 17:10:59
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Green looks like algae from water, carb needs cleaning
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SRTsFZ6
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 17:32:26
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I didn't see the green in the pic, but I do now Mike.... +1, there's something going on in that carb... Here's what the inside of the carb should look like (after a Sonic cleaning): 
post edited by SRTsFZ6 - 2025/01/09 17:33:58
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 17:50:09
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hey Man THANKS, the link wouldn't work on my new IPAD pro, but worked on my MBP.
I appreciate it.
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 17:54:49
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i have rebuilt a few carbs this year: a poulan chainsaw, a wood chipper with a Kohler engine, craftsman string trimmer, and now looks like this 10hp tecumseh engine. It looks more complicated than the others I have done this year. More linkages and so on. But it needs to be done. This diagram will help me know this engine!
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/09 21:35:21
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I just ordered a new carb from Amazon from a brand I have used before. It will be here Monday.
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Mikel1
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/11 13:40:40
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☄ Helpfulby beebad 2025/01/14 17:07:07
Hang on to your old carb just in case. Tecumseh closed up many years ago
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/11 20:12:48
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Yes. absolutely!
the Kohler engine I worked on‘s carb hasn’t been made in a very ling while and only after market chinese imports are the only ones available anywhere………anywhere.
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/14 17:40:14
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MADDENING...I AM TRYING TO UPLOAD 2 JPG IMAGES IN ORDER TO AS A QUESTION ONE ONE IS 89 THE OTHER 99 KB. I MODIFIED THEM IN LIGHTROOM AND PHOTOSHOP AND IT IS STILL REJECTED.
any ideas?
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/14 17:43:20
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Mikel1
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/14 19:00:16
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☄ Helpfulby beebad 2025/01/14 19:09:51
Doesn’t matter, it’s just a drain valve for fuel bowl.
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/14 19:10:30
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/14 23:28:20
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beebad
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/14 23:45:28
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The one thing I find really odd is this engine didn't have an air filter. What am I missing? I looked in the manual and couldnt find an idle speed in rpms.
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SRTsFZ6
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Re: 10hp Tecumseh engine on MTD 665E snow thrower: gas quirts as I prime
2025/01/15 07:12:33
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☄ Helpfulby beebad 2025/01/15 09:16:15
Looking at your picture links, the machine is designed with no air filter.
Being a snow blower, there's no dirt kicked up that could be sucked in to the engine.
Just like a an outboard boat engine, no air filter.
Regarding idle RPM's, just a good steady low RPM that with the rotating
part of the machine turning, the engine doesn't stall. This isn't terribly important.
Max RPMs will likely be 3,600 RPMs.
You don't want to go above that as it'll shorten the life of the engine and wear parts of the machine prematurely.
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