Hello all. Im glad I found this place and hopefully can help fix my problem.
2009 Cub Cadet LTX 1040, 19HP Kohler Courage
I bought the mower knowing that it didn't start. I was told that they mowed the grass last friday, shut it off and attached the hose to the mower deck to clean it, then after cleaning the deck, tried to start mower and nothing but a single backfire. Motor cranks but does not fire.
- There is spark
- No OEM fuel pump on this sv590-0220 19 HP Kohler, so there is no 'bad' fuel pump to contend with
- Good fuel flow from inline filter to carburetor
- New spark plug and correctly gapped at .030
- Clean air filter/breather assembly
- Removed and thoroughly cleaned carb with carb cleaner and compressed air
- Installed new carb solenoid repair kit from dealer
- New carb solenoid was tested by connecting the electrical connectors and the plunger engages/disengages with the key off and on
- I have 12 v going to the carb solenoid connector
- Battery is new and strong and I keep it charged after a series of 'cranking'.
- Fresh gas, 3/4 tank.
- Oil level is good
- COMPRESSION TEST - 0 PSI
-If i throw some gas into the carb so that it gets into the cylinder, it will make one big backfire and that's it. Same goes for a shot of carb cleaner into the carb/cylinder.
Took the valve cover off....the rocker arm on the EX side practically fell off the valve spring and push rod.
When I turn the motor by hand and the valve opens or closes, the rocker will become tight again.
The IN side doesn't have any looseness or play.
I've read/youtube video, describing how the valve guide on the EX side is prone to coming loose and shimmy up the valve, keeping it from closing/opening completely. True?
