Hey all,
Looking for some help. I have an mtd yard mchine 14.5hp riding mower. Gas was leaking through carb and into crank contaminating oil. I replaced the float needle and seat. The float itself seemed ok as when I shook it it had no gas in it.
After replacing the needle and seat I replaced oil and filled gas tank. No leak was present.
The next day went and checked oil and it was over full and all gas from tank was gone. So gas is still leaking into crank. Is there anything else it could be besides the float, needle or seat?
Any help greatly appreciated
Tony
#2
ILENGINE
I have seen cases where carbs would redevelop a leak with a few minutes to few hours after replacing needle, and seat. Most of the time it is due to the same situation that caused the first problems. Piece of debris getting under needle valve and preventing it from sealing. If the vent for the carb bowl is clogged can cause siphoning. So check that also.
#3
Fish
That model is prone to that problem, I always put in an inline fuel shutoff...
I have seen cases where carbs would redevelop a leak with a few minutes to few hours after replacing needle, and seat. Most of the time it is due to the same situation that caused the first problems. Piece of debris getting under needle valve and preventing it from sealing. If the vent for the carb bowl is clogged can cause siphoning. So check that also.
I have no problem installing a shut off that would be easy and great. So when I install the shutoff do I need to run the engine out of gas each time by shutting off the gas valve to kill the engine and ensure that gas will not flood crank.
thanks
I have no problem installing a shut off that would be easy and great. So when I install the shutoff do I need to run the engine out of gas each time by shutting off the gas valve to kill the engine and ensure that gas will not flood crank.
thanks
If you look into the carb by the choke plate, you will see several holes around the edge. the larger hole will be the bowl vent. The reason I brought it up is on some setups, it is easy to block the vent with gaskets, and such.
If you look into the carb by the choke plate, you will see several holes around the edge. the larger hole will be the bowl vent. The reason I brought it up is on some setups, it is easy to block the vent with gaskets, and such.
