This is old, but I just faced the exact same issue on a friend's Craftsman mower with the 20hp Courage engine. Just quit running on her. The problem was overheating due to 20 years of the entire cylinder head being caked with mud and grass debris. Cooked in hard and carbonized! Cleaned it out and suspected ACR, but found loose exhaust rocker. Engine would not crank at all due to valve not opening properly. Got stuck on compression stroke. Cranked fine with plug out. Exhaust guide out 1/2" as in video. Placed piston at TDC so valve would not fall into cylinder and removed spring/keeper. Used a socket that fit over valve stem and contacted guide and drove it back in until seated. Peened aluminum head around it to keep it in place. Pushrod was not bent, so reinstalled spring/keeper, adjusted valves and it fired right up. To make it easier use a foot of rope to fill the cylinder to keep the valve closed. I had none with me, and it was hard to get the valve spring back on. She will make sure her cylinder head is clean from now on. She was paying a company to service it annually, but they failed to do that simple service. Four bolts to get the cover off. It runs like a champ now!
@Antonio1974K5Blazer2 жыл бұрын
Thank you sir. I hope this fixes my P0101 code. No other codes except the one. If this works I will be back to do a follow up.
@saharadeserttunisia23172 жыл бұрын
This the same issue I had today . Did you fix it ?
@jennelynsios-e98052 жыл бұрын
Same issue with my head unit...
@realToddLane3 жыл бұрын
The exhaust valve came into contact with the piston. That is how the push rod got bent.
@lomgshorts33 жыл бұрын
You didn' clean the head and crap that clogged the cooling fins on the head. That is why the exhaust valve overheated and unseated. The valve seat may be loose, too. Any kind of oil leak on the head will accumulate and stop the necessary cooling needed. I use Brakekleen® to get rid of the crap building up and replace gaskets as needed. Setting the valves clearances, I use 6mm exhaust and 4mm intake clearances for wear on older brass gauges that flex. Tight with newer stainless gauges, so you have to allow for what type you use and the age. I use brass gauges because they are more flexible in tight spaces.
@edsanchez2793 жыл бұрын
Thank you for your help, my issue was resolved based on your suggestion . I found a collapsed vacuum hose connection. I installed a stint and its working great!. Just curious on where you bought your pulley puller.
@bobbyatman2733 жыл бұрын
was recorded by a potato with a camera
@gamingwithpax8223 жыл бұрын
Thank you for making this video and the last one of the Kohler engine I think I know what my courage 21 problem is now
@SanjayMcDermott3 жыл бұрын
This the same issue I have, any solution?
@jhatfield8053 жыл бұрын
Besides buying a better stereo have yet to find a solution!
@ANG19403 жыл бұрын
I have a 2002 duaramax with the same code. I’m wondering if this is the problem
@darrenmaglione62354 жыл бұрын
Sounds just like mine!
@123chestercheetah4 жыл бұрын
you wouldn't have good compression if a valve was stuck open
@kylegreenhaw66534 жыл бұрын
This is a super useful tip! The power of hydraulics!