flyingace43
Forum Newbie
- Joined
- Sep 9, 2024
- Threads
- 0
- Messages
- 1
check the camshaft they have been known to bend.
When an engine won't start, I try Starting Fluid. If it fires and dies, likely a Fuel Problem. If it does not fire, likely electrical - Coil and or Spark plug.Okay guys, I need some help.
This is driving me crazy.
I took the deck off of my Troy-Bilt Pony to change out both blade pulleys.
While I had the deck off I changed the upper and lower belts.
I tried to crank the mower to see how it ran with the new belts.
Well, I couldn't get it to start up.
I could turn the top with my hand but it stops when I try to go clockwise.
Starter is good.
So I changed out the carburetor and the solenoid back by the battery apartment. Oh and a new battery.
I just don't know what's wrong with it.
Thanks in advance
17.5hp 500cc 42"cut
model #13an77kg011
Confusion, Can you turn the engine over multiple times with the spark plug out while turning it by hand? If you can, install the spark plug and try cranking with the starter. If the starter turns but stops at full compression, or turns really hard, you have an exhaust valve adjustment problem. If it does not pull through, put a braker bar wrench on the pulley nut at the bottom of the crank shaft, or on the flywheel nut, and try to pull it through. If pulls hard but does pull through, it confirms the valve adjustment requirement. If it is stuck, you got a big problem. The exhaust valve adjustment is critical, like .005 or less, while intake can be .0008 or .0009. Check your engine guide for the exact clearances. The close tolerance allows the exhaust valve to open a little just before top dead canter and acts as a compression release to allow the engine to turn over more easily and is easier on the starter. These newer engines have higher compression. If the exhaust valve adjustment is too much the extra cam bump won't open the valve. There will be no compression release causing the engine turn over really hard. It is normally never the starter. Good luck
I haven't read every post in this thread but I can tell you that it is highly, highly, highly and I mean again highly unlikely for a valve to drop on one of these engines unless somebody has been monkeying around in the valve cover and with stuff they shouldn't be messing with.Okay guys, I need some help.
This is driving me crazy.
I took the deck off of my Troy-Bilt Pony to change out both blade pulleys.
While I had the deck off I changed the upper and lower belts.
I tried to crank the mower to see how it ran with the new belts.
Well, I couldn't get it to start up.
I could turn the top with my hand but it stops when I try to go clockwise.
Starter is good.
So I changed out the carburetor and the solenoid back by the battery apartment. Oh and a new battery.
I just don't know what's wrong with it.
Thanks in advance
17.5hp 500cc 42"cut
model #13an77kg011
I have a feeling we don't have all the information or if we would have been there as a fly in the wall watching we would have spotted something that we would have been concerned about or said you shouldn't do.Murphy's Law, 4th axiom. "If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong. First corollary: If there is a worse time for something to go wrong, it will happen then."
Contrary to popular claims, coincidences DO happen. Unless the OP is lying about not doing something to the mower besides just removing the deck, this appears to be one.
Engine hydro locked.... Remove spark plugs, crank engine. Crank until no more gas out of spark plug holes. Gas filled engine. Drain oil/gas, flush, refill with the oil.Okay guys, I need some help.
This is driving me crazy.
I took the deck off of my Troy-Bilt Pony to change out both blade pulleys.
While I had the deck off I changed the upper and lower belts.
I tried to crank the mower to see how it ran with the new belts.
Well, I couldn't get it to start up.
I could turn the top with my hand but it stops when I try to go clockwise.
Starter is good.
So I changed out the carburetor and the solenoid back by the battery apartment. Oh and a new battery.
I just don't know what's wrong with it.
Thanks in advance
17.5hp 500cc 42"cut
model #13an77kg011
This entire post is a great example of a few things. Diagnostic skills versus shooting in the dark. Listening and comprehension versus throwing parts at it. Experience versus “maybe this will fix it.”Engine hydro locked.... Remove spark plugs, crank engine. Crank until no more gas out of spark plug holes. Gas filled engine. Drain oil/gas, flush, refill with the oil.