Posted by JD Seller on September 21, 2019 at 07:44:58 from (208.126.198.213):
In Reply to: Fouled plug posted by Olliejunkie on September 20, 2019 at 18:37:23:
I would say you have a oil ring broke/stuck on one cylinder. I have found this to be a common issue on the Vanguard engines. I have repaired 4-5 in garden tractors that where doing the same thing. The first one was on a JD 687 zero turn that only had 400 hours on it. It had come from a maintenance nut so I know it had been cared for. The good news is the ones I have fixed just needed new rings. The pistons and cylinder bores where in good condition.
You can try running some Reslone oil treatment in it to see if that will free a stuck ring but I bet that will not fix it.
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