I have a Tecumseh lawnmower model TVS 43745n. I crank the cord but it wont start. The spark plug gives a good spark. I have undone the carb bowl, gave everything a good cleaning including the jet holes but still no start. I even tried putting a tablespoon of gas in the engine and cranked it with no luck. I also have fresh gas. Does anyone have any suggestions that I might try to get this mower working. Thanks in advance, Philip
I took off the head cover and I noticed that the valves open and close when I turn the blade but the piston does not move. I checked the flywheel key and it is fine. Is it possible that something connected to the piston is broken?
Most likely you have a broken connecting rod. You would need to tear down the engine and inspect to see if it's worth repairing or not. Any damage to the crankshaft at any of the journals or the bearing surfaces of the block and it would probably not be a cost effective repair.
Camshaft and Connecting rod Replaced but other issues persist
I have a Tecumseh lawnmower and my connecting rod and camshaft broke as the result of hitting a solid object. Only my teenage son knows
what it is!!! Isn't the flywheel key suppose to break first? It didn't, it's not even slightly bent. Anyway I digress. My question is
I don't know how to reassemble the oil pump part. I know it fits on the bottom end of the camshaft but where do I position the small rod
with the round end? Any help would be much appreciated.
Thanks to your help and pdf attachment I was able to get my oil pump back on properly. Thank you so much. If you send me your paypal account I will send you a small gift as a token of my appreciation for the time you took to help me out.