medium_jon Posted March 9, 2017 Report Share Posted March 9, 2017 I had thought my Trico Wiper Motor was seized, but instead I think the real issue is that the wiper arms / mounts are either on the wrong side or mounted upside down as with the wiper motor removed, the arms can only move a little bit before hitting the limiters inside under the dash. How do I get them off? Quote Link to comment Share on other sites More sharing options...
dpollo Posted March 9, 2017 Report Share Posted March 9, 2017 You pull the arm away from the glass as far as it will go then with a flat screwdriver tease the cap off of its spline. You cannot see the spline as it is completely hidden by the cap. When the arm is against the glass, there is a little tab which prevents the cap from coming off. you may need to put a little WD 40 around the splined part. Your car looks to be in good shape judging by the area around the cowl vent so I do not expect you will have too much trouble 1 Quote Link to comment Share on other sites More sharing options...
medium_jon Posted March 10, 2017 Author Report Share Posted March 10, 2017 (edited) Thanks dpollo. That is what I ended up doing, except without the screwdriver. Just sort of manhandled it and pop, they came off. I had only tried the driver's side before posting and it was much more stuck than the passenger that came off really easy. Strangely, the passenger side 'bearings' were frozen. Took a bit of time, effort, and lubrication to get them moving smoothly again. Everything is back together and it sort of works -- I think I need more vacuum. This car has a combination fuel pump / vacuum pump, but in the driveway it wasn't moving the wipers by itself -- a little manual lift on the arms and they would move and come back (on occasion). Hopefully I'll get more vacuum when on the road. Next up to fix is the brake lights. Edited March 10, 2017 by medium_jon Quote Link to comment Share on other sites More sharing options...
dpollo Posted March 10, 2017 Report Share Posted March 10, 2017 so far so good. Don't overlook that the vacuum motor has to have an air inlet. This is in the cover or in the vicinity of the cover over the reversing mechanism ( toggle) It often gets plugged with dirt from under the dash. If you loosen this cover by reaching through the radio opening and the wipers speed up then you know the filter is in need of cleaning. You can also lube the inside of the motor by spraying WD40 into the air inlet while the wipers are running. Needless to say, do this outside where exhaust fumes will not sneak up on you. Quote Link to comment Share on other sites More sharing options...
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