<!-- s:?: --><img src="{SMILIES_PATH}/icon_question.gif" alt=":?:" title="Question" /><!-- s:?: --> I have overhalled my super 77 diesel head valve guides valves  sleeve assy t crank  injectors and pump at a diesel shop have put it back together 
starts good hot and cold but puffs some white smoke on a cylinder not sure witch one think # 4 or 5  have been taking it to the tractor pulls  under a load it seems to sound fine   any suggestions Thanks Randy M <!-- s:? --><img src="{SMILIES_PATH}/icon_confused.gif" alt=":?" title="Confused" /><!-- s:? -->