honda gx160, 5.5hp fuel running into oil

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  #1  
Old 10-08-13, 11:37 PM
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honda gx160, 5.5hp fuel running into oil

hi there
i have a brick saw powered by honda gx 160 5.5hp, saw has been running for years without any problems, recently saw cut out and i found fuel getting into oil,
drained fuel/oil and removed head assy to find gasket worn, replaced head gasket and reassembled, started fine and was running better than ever, 2weeks later same problem fuel into oil and saw keeps cutting out. has anyone come across this or can anyone shed some light on this problem.
cheers....matty
 
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Old 10-09-13, 12:05 AM
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Welcome to the forums.

It would appear that you have a carburetor float problem. The float is not shutting the gas off at the correct level and it's overflowing and running into the engine.
 
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Old 10-09-13, 09:06 AM
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Hello matsmit,


As PJmax said, You have a carb issue. Cleaning the carb and replacing the float needle valve should solve the issue.


Good Luck
 
  #4  
Old 10-10-13, 02:08 PM
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I can't say if you have the following problem or not but I can tell you that we have replaced more pressed-in, typically brass inlet seats in the last three years than we did in the last 50 years in the business. We know that it is the ethanol fuel that is etching the brass to the point where a new rubber-tipped inlet needle will not solve the problem. However, in your situation - with a Honda - there will be no such replacement part available. The good news for you (if this is your trouble) is that the vast majority of Honda carburetor assemblies are quite inexpensive to replace. Since your carburetor likely has a plastic float I would not place blame with such. You certainly would not be out much money if you installed a new inlet needle and it did not solve your fuel-dumping issue...you'd then need to order a new carburetor assembly. But watch out, many Honda inlet needles are nearly as much cost as a new, replacement carburetor assembly.
 
  #5  
Old 10-10-13, 06:27 PM
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thanks PJmax, i"ll give it a try with a new needle / carb and will post outcome....
cheers..........
 
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