ChrisJames81
Forum Newbie
- Joined
- Jul 23, 2016
- Threads
- 2
- Messages
- 8
So at work I had a project put on me. It was to clean up someone's mess. We have a scag mower that originally came with at CV22S. This guy put a used CV20S in it and the #2 cylinder overheated and the valve seat fell out. When I first started my job (over 2 years ago) I saw the mower and engine in pieces. The other guy managed to order a new head. Well It finally became somewhat a priority to get it going so I had to clean up this guy's mess and put something back together that i didn't take apart (which I HATE). I had the brand new head, ordered valves, seals, gaskets and whatnot. I installed everything, with a new fuel filter, brand new gas, new plugs, Cleaned the carb and intake manifold, bled the hydraulic lifters to check for proper operation. I started it up finally yesterday. It sounded good, as in I think both cylinders are firing correctly, ran it for about 4 minutes, then revved it up to blade cutting speed for about 30 seconds, then put it to idle for about 30 seconds, and then shut it down. The thing I noticed is, the #1 cylinder I could hold in my hand, wasn't hot enough to take my hand off, got close though. The #2 cylinder, the one that overheated before, was on fire, couldn't get my hand near it without burning. Now that temp could be normal operating temp, because Cant normally touch an engine after running. But the thing that concerns me is that there was that much of a difference in temperature and that was the same cylinder that overheated and dropped a valve seat. This is my first time building and installing a head, and I followed all the instructions verbatim.
I don't want it to blow up again, so is there anything I can do to see if there is a problem? Like I said I only ran the engine for 5 minutes. I have access to some equipment, but not sure what to do to see if something is wrong. I have a compression tester, Leakdown tester, and IR thermometer.
Another thing, I think I have to order a choke lever for the carb, No mater what way I put it on, it doesn't seam to operate correctly and looks slightly different in the drawings. It was in my parts bag when given the project, but don't know if it was jerry rigged to work or not, at 6 bucks, i'm going to order one and hopefully its different. I can assure the choke was not engaged while running, it's easy to move by hand, and it sticks well in whatever position you put it.
Notes
Scaq: STHM-22CV
Current engine: Kohler CV20S-65540
New Plugs, brand new #2 head and components
New intake and exhaust gaskets, all surfaces scotched to shiny smooth condition
I don't want it to blow up again, so is there anything I can do to see if there is a problem? Like I said I only ran the engine for 5 minutes. I have access to some equipment, but not sure what to do to see if something is wrong. I have a compression tester, Leakdown tester, and IR thermometer.
Another thing, I think I have to order a choke lever for the carb, No mater what way I put it on, it doesn't seam to operate correctly and looks slightly different in the drawings. It was in my parts bag when given the project, but don't know if it was jerry rigged to work or not, at 6 bucks, i'm going to order one and hopefully its different. I can assure the choke was not engaged while running, it's easy to move by hand, and it sticks well in whatever position you put it.
Notes
Scaq: STHM-22CV
Current engine: Kohler CV20S-65540
New Plugs, brand new #2 head and components
New intake and exhaust gaskets, all surfaces scotched to shiny smooth condition