Wiper motor cleaning and overhaul
Posted: Thu Jul 25, 2019 7:53 pm
Hello there,
Any thoughts out there as to the best method and material to use when cleaning the wiper motor armature and field coil?
I have read recently that solvents are to be avoided as they can dissolve the lacquer or insulation used in the windings back in the 60's, is that right?
I think I may have been able to rescue and renovate the whole mechanical system, even the wiper gear boxes are reusable although drivers side was a b****r to get back in, it is not necessary to remove dash side panels and more as advised in manual
.
The fuse kept blowing as drive rack was well and truly stuck in tubes with dried up grease from Jan 1967, just trying to get the motor back up to muster. The commutator seems ok, just needs cleaning, gentle "resurfacing" with fine emery cloth whilst rotating in pillar drill and segments carefully re-undercut....I hope, unless you know or can advise otherwise!
The thermal protection device mentioned in the manual circuit diagram has been "modified out" in my motor it seems, it is nowhere to be seen, have read in later books about classic car small part repair and overhaul that this was usual and performed by dealers as official mod due to over sensitivity and causing too many failures.
Thanks as always for any ideas.
Regards
Rob c.
Any thoughts out there as to the best method and material to use when cleaning the wiper motor armature and field coil?
I have read recently that solvents are to be avoided as they can dissolve the lacquer or insulation used in the windings back in the 60's, is that right?
I think I may have been able to rescue and renovate the whole mechanical system, even the wiper gear boxes are reusable although drivers side was a b****r to get back in, it is not necessary to remove dash side panels and more as advised in manual
.
The fuse kept blowing as drive rack was well and truly stuck in tubes with dried up grease from Jan 1967, just trying to get the motor back up to muster. The commutator seems ok, just needs cleaning, gentle "resurfacing" with fine emery cloth whilst rotating in pillar drill and segments carefully re-undercut....I hope, unless you know or can advise otherwise!
The thermal protection device mentioned in the manual circuit diagram has been "modified out" in my motor it seems, it is nowhere to be seen, have read in later books about classic car small part repair and overhaul that this was usual and performed by dealers as official mod due to over sensitivity and causing too many failures.
Thanks as always for any ideas.
Regards
Rob c.