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Tecumseh HM80 spits out gas when primed!


rod1995's Avatar
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12-17-05, 06:46 PM   #1  
Tecumseh HM80 spits out gas when primed!

I have a 1984 Canadiana Nova showblower with 8hp motor that I have not run for 2 years. When I tried to start today I put in gas (it was empty) major gas leakage and in looking I note it comes out of a small opening at side of upper carburetor and from the same hole spits air and gas when I use the primer bulb. Hopefully this is sign of major cleaning need and not something more. Any help?


Last edited by rod1995; 12-17-05 at 06:49 PM. Reason: Should read HM80
 
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v8driver's Avatar
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12-17-05, 08:39 PM   #2  
fuel is free flowing? or its just the primer leaking? if its flooding out, float and or needle/seat are bad, or the float hung up. make sure the primer has no holes or cracks it isn't supposed to have, 1984? it really does sound like its in need of a rebuild kit.

 
rod1995's Avatar
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12-17-05, 10:04 PM   #3  
HM80 spits our gas when primed

fuel is free flowing. As soon as the fuel shut off is opened, fuel comes out the hole readily. When the primer is used it is forced the more.
thanks

 
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12-17-05, 10:53 PM   #4  
carburetor

Float is not shutting the fuel off when the bowl is full. Probably has a hole in it or is crushed from freezing when there's water in the bowl. Pull off the bowl--buy a float and a kit and clean up the carb.
S/T

 
v8driver's Avatar
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12-17-05, 10:55 PM   #5  
carb needs a overhaul, like i said, its gotta be a float problem, or needle/seat. these are what meter fuel flow. float is hung open, needle or seat leak, or float has filled up with gas, won't do its job and fuel flows out every hole it can find.

also make sure the change the oil if it smells like gas before you use it, don't want a fried engine.

 
rod1995's Avatar
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12-18-05, 12:50 PM   #6  
tecumseh hm80

Sure enough the float is full of gas - that is not coming out so not sure how got in but in any event I will get new one and fix. Thanks for the help.

 
v8driver's Avatar
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12-18-05, 08:11 PM   #7  
plastic or metal? anyway, they can form a pinhole over time, mostly at the seam, gas leaks in, only way to fix it is to replace it though.

 
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