My plan is to do a full restoration . They only made 475 of these and I think it is worthy of a complete redo. The engine has been apart from the rtv signs, but I am not sure of the engine history. I am the fourth owner. The third had it for 10 years and did nothing but a little tlc and the second owner had it. 25 years and could not remember what he had done. My guess is it sat for years cause the guy I bought from told me the tires were all flat and he put new tubes in them. It does not smoke at all. What is the crankcase ventilation pump??? Jdtractorman
Re: 620 all fuel pistons in reply to Jdtractorman123, 06-28-2013 20:21:24
It may just be evaporating moisture from the crankcase.. Work it a couple hours, to get it up to temp and dried out.. You can expect some venting from the clutch area as normal.. New rings on your original pistons will most likely be all you may need to do, if you do open it up..+ a valve job..
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