|
Absolutely replace the brushes. The unit with the brushes also contains the voltage regulator. The job can be done without removing the alternator, but some things are easier to do with it out.
The alternator mounting uses three rubber bushings named accessory mounts. Two on the alternator bracket, one on the tensioner arm where it bolts to the block. Get new ones. Installing them is made easy with a few drops of ATF on them.
The alternator needs three wires connected to it. A fat red wire conntected with a nut on a stud (disconnect battery first), then a thin red wire that connects to a spade lug, and last a black wire, rather short, that connects under the rear bolt of the mount bracket. All three wust be OK for the alternator to work properly.
With the brush unit out, the rotor should spin freely and silently. Look inside where the brushes ride on the slip rings. (No armature, its not a generator.) The rings should be smooth or very moderately pitted. They can be dressed out a bit using 400 grit emery paper and spinning the rotor. BTDT
The whole thing is an easy DIY job, provided you have the tools, space, and nerve. Can save as much as $100.
Good Luck,
Bob
:>)
|
