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Old 10-20-2001, 12:21 PM
Robert Doubrava's Avatar
Robert Doubrava Robert Doubrava is offline
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8 horse tecumseh problems

i mow my grandfathers lawn for him because he's in a nursing home. i was mowing with his murray rear engine mower, and i heard a weird noise. i cant describe what it sounded like, but i know it came from the engine. right after i heard the noise, it started popping very loudly. fire and smoke was coming out of the muffler. i checked it a few days ago, and it still does it. thats why i say briggs engines are better than tecumsehs, we have not had a problem like this with any B&S engines before. im guessing, is it an internal engine problem, or a carb problem?
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1984 22" Yazoo BigWheel 5hp B&S I/C
1993 38" Craftsman rider 12.5hp B&S I/C
2004 Craftsman 17" gas weed-wacker
2004 Craftsman gas blower
1982 Trim-All edger 2hp B&S
1990's Stihl 009L, 14" bar
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  #2  
Old 10-20-2001, 04:07 PM
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Robert Doubrava Robert Doubrava is offline
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i forgot. i beleive the tube coming out of the valve cover is the overflow tube, right? if it is, gasoline has been draining out of it, i think. i beleive it may be a problem with the valves or something.
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My truck:

1970 Chevrolet C20

My equipment:

1984 22" Yazoo BigWheel 5hp B&S I/C
1993 38" Craftsman rider 12.5hp B&S I/C
2004 Craftsman 17" gas weed-wacker
2004 Craftsman gas blower
1982 Trim-All edger 2hp B&S
1990's Stihl 009L, 14" bar
1964 McCulloch 250, 20" bar
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Old 10-21-2001, 04:34 AM
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vipermanz vipermanz is offline
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has to be internal if it did all that
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Old 10-21-2001, 07:47 AM
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MOW ED MOW ED is offline
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I can't really help you with the mechanical part of the trouble but I can almost guarantee you that the nice slugs at Tecumseh dont give a sh!+ about the problem. They are really a fine class of people.

I'd take that Tecumseh off and throw it in the crap heap and put a rubber band engine on it before I'd buy another fast food engine from those idiots.


Good Luck.
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Old 10-21-2001, 08:26 AM
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Richard Martin Richard Martin is online now
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Robert Doubrava wrote:
.............................
it started popping very loudly. fire and smoke was coming out of the muffler.
.............................

It is probably either a stuck exhaust valve or the camshaft has jumped a tooth. These engines are so cheap new that it's not worth fixing.
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Old 10-21-2001, 01:26 PM
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Robert Doubrava Robert Doubrava is offline
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when you sit there with the engine running, it starts to screw up. once you start to use it and you turn the blades on, it runs better.
__________________
My truck:

1970 Chevrolet C20

My equipment:

1984 22" Yazoo BigWheel 5hp B&S I/C
1993 38" Craftsman rider 12.5hp B&S I/C
2004 Craftsman 17" gas weed-wacker
2004 Craftsman gas blower
1982 Trim-All edger 2hp B&S
1990's Stihl 009L, 14" bar
1964 McCulloch 250, 20" bar
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Old 10-21-2001, 04:36 PM
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vipermanz vipermanz is offline
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sounds like something is loose in that case
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  #8  
Old 10-21-2001, 07:52 PM
Robert Doubrava's Avatar
Robert Doubrava Robert Doubrava is offline
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Location: Beeville, Texas
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all i know is, tecumseh engines are not reliable.
__________________
My truck:

1970 Chevrolet C20

My equipment:

1984 22" Yazoo BigWheel 5hp B&S I/C
1993 38" Craftsman rider 12.5hp B&S I/C
2004 Craftsman 17" gas weed-wacker
2004 Craftsman gas blower
1982 Trim-All edger 2hp B&S
1990's Stihl 009L, 14" bar
1964 McCulloch 250, 20" bar
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  #9  
Old 10-21-2001, 09:35 PM
khouse khouse is offline
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I agree with Richard. You have an exhaust problem. Burnt or sticking. This would be a good repair for you. Remove the cylinder head and inspect the exhaust valve. Use that Briggs manual you have and remove the valve while your in there and check it. I believe that Tecumseh has a much better engine today then the ones years ago. They have never really gotten over there past reliability problems. I'm not sure but I think they were the first to introduce the overhead valve design for a small engine back in the early 70's.
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  #10  
Old 10-21-2001, 09:43 PM
khouse khouse is offline
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This is just my opionion. The new Tecumseh and Briggs engines are pretty close in performance and reliability. 10 years ago I would have said Briggs. On small equipment that's under 2k$ you'll see Briggs and Tecumseh. These engines are fine for residential and light commercial use. But if you want 100% commercial then you'll get equipment with Kaw's, Honda, Robin, Kabota, Kohler? I think the new Briggs 25 hp Vertical looks and runs great. We'll have to see how long they will run.
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