I am sure it was checked more then once but only needed that one shim one time.Not really out of the relm as many high mileage 1800 owners have claimed they have checked the valves many times over 200-300K and they have been within specs.My buddy has a 2003 with 230,000 miles and he checked the valves three times in the first 100K and all good so he is just running her until he sees a performance drop which has not happened.He changes the oil and filter every 5K with Amsoil 10/40 full synthetic which is overkill but he likes the 5K intervals.One altenator and rear end/drive shaft replacement and lots of tires,brake pads and other fluid changes like brake,clutch,coolant every two years or so.Hard to break one of these engines.Originally Posted by willtill
One valve needed adjustment only? in half a million miles?
Really?
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