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Kohler Generators Restoring, maintaining and operating vintage Kohler generators.

Kohler Generators

What can you tell me about this model?


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  #21  
Old 11-16-2018, 04:48:15 PM
07wingnut 07wingnut is offline
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Default Re: What can you tell me about this model?

Thanks for the heads up on the oil restrictor. I was wondering if there was perhaps too much oil flow thru the filter, knocking down the oil pressure to much. I will pull the filter off, drill a 1/16 inch hole in the plug that used to be in there, and put it back in, then bolt the filter assembly back on.
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  #22  
Old 11-26-2018, 04:05:09 PM
07wingnut 07wingnut is offline
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Default Re: What can you tell me about this model?

I have the oil pressure problem fixed now that there is a restrictor in the bypass oil filter. The generator seems to run fine now, except it will start to bog with much over 4kw loads. At this point, the throttle is maxed out and changing the setting on the enrichment needle makes no difference. It does test very low on a compression gauge, about 40 to 50 psi on all cylinders and adding a bit of oil into each cylinder does not change the compression significantly. I have also run the engine with regular spark plugs and resistance wire, and with the shielded wire setup you see in the pics. Makes no difference.
It looks like a valve sealing problem. Now to the question of the day. Has anyone used one of those valve seat cutting kits that you see on Ebay, are they any good and if so, what set would you recommend? IMO there is no point in trying to lap the valves again if the seats are pitted and worn a bit.
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