Quote:
Originally Posted by J-Mech
You've not been into many engines then.....
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You are taking a giant leap of faith to make a statement like that about someone you know nothing about.
I suspect it may be you that is lacking in experience. Your statement about today's fuel is an indicator of this. With today's fuels you can run an engine for hours and hours or years and years and the spark plugs stay clean. Usually only have to be replaced when they just wear out. Compared to yesterday's spark plugs that used to get deposits all over them in a very short space of time to the point they'd short out and that is mostly a direct result of the fuel being used. I think small engine manufacturers used to recommend changing spark plugs annually? I have engines that have run 15 years on the same plugs and are still clean and seem to fire good. We've had ethanol in the gasoline around here for close to 30 years so nothing new here for me.
I'm old enough to remember when you opened up an engine it was expected to be full of crud, both in the combustion chamber and in the crankcase. In the event of overhead valves, yeah, it was full up there too. Bearings eaten up with corrosion. Stuck rings..........................................
You just don't see problems like that anymore.