Just purchased 37 model D. Noticed a racket in the front that I first thought was a bad fan shaft bearing. Later discovered it was the tappets clacking. I adjusted
them as the repair manual stipulates. "Set left exhaust valve open position so that all tappets will move. Tighten until no motion and then back off 1/2 turn". They
may not be quite as loud but still making noise. Is normal for this particular engine?
them as the repair manual stipulates. "Set left exhaust valve open position so that all tappets will move. Tighten until no motion and then back off 1/2 turn". They
may not be quite as loud but still making noise. Is normal for this particular engine?