[Guy]

Anyone have any experience with Trico air wipers? My 1984 has become very sluggish on the drivers side. 1 pass of the wiper  and it is tired out. It does respond to the park command perfectly. I have the Trico motor out on the work bench. Before I go any further, it appears this motor has never been serviced. It has sawdust on it from the dash board construction. Would I do any harm putting a little mineral oil in the run and park intake ports? I realize the problem may not be in the motor, but the control valve in the dash, but it must need some lubricant for the o rings after 34 years?