Oil bath in starter motor

K

Kaienana

Recruit
Joined
Sep 16, 2008
Messages
3
I have just stripped a 2006 Mercury starter.
It has/had four brass bushes that revolved the armature using a flat plate rather than the rounded with carbon brushes.
What seems strange to me is that the insided is drenched in a black smelly oil !

Anyone know if this is normal?
 
C

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,811
Re: Oil bath in starter motor

It is not unnsual for a Merc starter to have the flat commutator. The 70s-90s inlines all have them. The oil is not usual however. I would clean it up with some nice clean rags. Don't use any solvent that will disolve varnish, or it will ruin the starter.
 
achris

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Oil bath in starter motor

Kaienana said:
I have just stripped a 2006 Mercury starter.
It has/had four brass bushes that revolved the armature using a flat plate rather than the rounded with carbon brushes.
What seems strange to me is that the insided is drenched in a black smelly oil !

Anyone know if this is normal?
Click to expand...

Someone may have been over zealous with the oil can on the starter pinion shaft... As the commutator is at the bottom of the starter, then that's where any excess oil will end up...

Flat commutators are common on Mercs... they are shorter motors than cylindrical commutator motors.

Chris.....
 
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