16 hp briggs on simpicity mower

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  #1  
Old 06-14-12, 07:58 PM
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16 hp briggs on simpicity mower

When starting engine motor doesn't want to turn over. Like a dead battery but it does start. Had to replace starter gear.When it does start blows blue smoke for awhile. Then seems fine. model 303777
 
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Old 06-14-12, 09:36 PM
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Sounds like gas is leaking from the carburetor while it is sitting. Does the oil smell like gas?
 
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Old 06-15-12, 05:59 PM
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It does have a faint gas smell. but I can't smell very good. The oil does go down as I check it per cutting.Wouldn't it be adding oil to it instead. What causes it to leak from the carb.Maybe I should just fix that to start
 
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Old 06-15-12, 07:38 PM
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Yes, generally if gas is leaking into the oil, it will raise the oil level, but it also thins the oil really badly, so it will use the oil pretty fast and you'll then have to add oil. Is the oil thin? If the carb is leaking gas, it will be needing a cleaning, new needle, and if it's a nikki carb, it will also need a gasket set. If the carb isn't leaking and the oil isn't thin, then check your valve adjustments. This wouldn't be a bad idea anyway if you haven't adjusted them in a few years... it's normal required maintenance.
 
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Old 06-16-12, 09:05 PM
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Thanks cheese I never adjusted them. Do you know what the settings are
 
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Old 06-16-12, 10:49 PM
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Set them both to .005" and you'll be fine.
 
  #7  
Old 06-18-12, 07:43 PM
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Cheese I thought I knew how to adjust the valves but I don't think I did it right
 
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Old 06-18-12, 09:25 PM
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Set the engine to 1/4" past TDC and set them in that position.
 
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Old 06-19-12, 07:26 PM
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cheese I adjusted the valves by taking out the plug sticking a screw driver in the hole until the piston just started down then adjusted. When I started the mower it ran for awhile then lost power.I opened the cover on the left side and both push rod fell out of place. Put them back in place started the engine same thing happened. What am I doing wrong
 
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Old 06-19-12, 09:19 PM
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You've got them too loose apparently. If they were that loose, the tappet from the top of the valve probably fell off too.
 
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Old 06-20-12, 07:08 PM
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Just wanted to let you know that I got. thanks cheese
 
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Old 06-20-12, 07:36 PM
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Great! An that fixed the starting problem? Glad to help.
 
  #13  
Old 06-20-12, 08:39 PM
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are you torquing the set screws to the correct value?
 
  #14  
Old 06-22-12, 04:41 PM
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Ok now you lost me. I seen that they are to be torq to 45lb.
 
  #15  
Old 06-22-12, 08:47 PM
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The torque is not critical, other than making sure it is tight enough to not come loose again.
 
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Old 06-24-12, 08:34 PM
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Hi cheese what is the torque suppose to be
 
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