Quote:
Originally Posted by mjncad  My 4200 is a 2001 and has about 485 hours on it. As I recall the owner's manual says to get a valve adjustment every 500-hours. Mine runs just fine, and although I'm not fanatical about maintenance, especially washing my vehicles, I do try to stay on top of the mechanical stuff. |
I would not worry too much about valve adjustment. This machine has
700-800hr on it and none of the 4300s at the rental place have had their
valves adjusted. If your engine starts to smoke or gets difficult to start,
that is a different story. If the valve lash increases, that should not be a
big worry as these are low-revving engines with low valve spring rates that
will minimize the peening effect (distortion) you can get with a loose
valve train. That is my opinion; hardcore engine builders may disagree.
I AM concerned about potential failure of the air hose. I warned the rental
yard about this problem and I think you should check it out, too. The drain
hose from the fuel filler catchment basin is pinched against the air hose and
I think you can reduce the risk of damage by removing this optional hose.
I hope other JD owners see this (incl 4x10 owners) and check it out.