RandyAdcox
Forum Newbie
- Joined
- May 20, 2017
- Threads
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- 4
Hi all,
Recently inherited an old Ford LS55, which has a Kohler CV18S engine. Original owner tells it me "was running a couple of years ago, but started running ragged, and so it was parked and replaced with a new mower". Engine seems to have good compression, but I've determined that I have no spark on the "right" cylinder (if you're sitting on the tractor). Spark is good on the other cylinder, but engine refuses to even try to start. Installed a new battery, so have plenty of "power", but engine does nothing but spin...never even attempts to "fire". Found a service manual online, which references an ECU module, and associated EFI system.
I originally thought perhaps I had a bad coil on the right cylinder, but now I'm wondering if maybe this is an ECU/EFI problem. Don't know if it matters, but here is the Spec#: 61515, and Sr#: 2417510117. Anyone got any thoughts/ideas/suggestions for this admitted "rookie small engine mechanic"? Thanks!
Update!! Confirmed the "right" coil is indeed bad (swapped coils and the problem went to the other cylinder). Still curious as to why the dang thing doesn't even attempt to crank on the one, "good" cylinder, but anyway, will order a new coil and see what happens after it's installed.
Recently inherited an old Ford LS55, which has a Kohler CV18S engine. Original owner tells it me "was running a couple of years ago, but started running ragged, and so it was parked and replaced with a new mower". Engine seems to have good compression, but I've determined that I have no spark on the "right" cylinder (if you're sitting on the tractor). Spark is good on the other cylinder, but engine refuses to even try to start. Installed a new battery, so have plenty of "power", but engine does nothing but spin...never even attempts to "fire". Found a service manual online, which references an ECU module, and associated EFI system.
I originally thought perhaps I had a bad coil on the right cylinder, but now I'm wondering if maybe this is an ECU/EFI problem. Don't know if it matters, but here is the Spec#: 61515, and Sr#: 2417510117. Anyone got any thoughts/ideas/suggestions for this admitted "rookie small engine mechanic"? Thanks!
Update!! Confirmed the "right" coil is indeed bad (swapped coils and the problem went to the other cylinder). Still curious as to why the dang thing doesn't even attempt to crank on the one, "good" cylinder, but anyway, will order a new coil and see what happens after it's installed.
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