Main windshield washer pump was non functional when I recently purchased my 1991 FJ80.
Since a replacement is not only hard to come by but quite spendy I figured what’s the loss in trying to take it apart and see what failed...
I used a pair of channel locks to break the glue seal on the top
Found internally the motor was rusted in place causing it to freeze up.
Removed all the parts and cleaned all the rust off of them and left a skim coat of dielectric grease on most surfaces.
Put the assembly back together and tested it with a direct 12v from the battery and it ran like a new motor.
I sealed the top of it with a little PVC cement.
I believe that the internal moisture was most likely caused by a failed seal in the bottom that separates the motor from the pump and as such most likely will fail again... but until then at least I have washer fluid on the windshield!
Since a replacement is not only hard to come by but quite spendy I figured what’s the loss in trying to take it apart and see what failed...
I used a pair of channel locks to break the glue seal on the top
Found internally the motor was rusted in place causing it to freeze up.
Removed all the parts and cleaned all the rust off of them and left a skim coat of dielectric grease on most surfaces.
Put the assembly back together and tested it with a direct 12v from the battery and it ran like a new motor.
I sealed the top of it with a little PVC cement.
I believe that the internal moisture was most likely caused by a failed seal in the bottom that separates the motor from the pump and as such most likely will fail again... but until then at least I have washer fluid on the windshield!
