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Here is a link to a photo album containing pics of the original alternator from my 78 SA. Car is an L-82 w/AC, but no power locks, windows or defroster. It's a 42 amp version. Believe cars optioned with more power options had a larger one so they might appear different so TMMV.
The portion of the Stator showing through the 2 half's could have been a yellow cad finish, a reddish in color electrical varnish or a olive in color varnish.
The fans backside is unpainted and looks to be some-kind of cold galvanizing.
The pulleys backside is unpainted and looks like a Zinc plating.
The pulley and fan were painted together as evident of no paint under the pulley with some droplets of over spray on the back of fan.
The color I used on my 77 was satin black.
Olive is about right..blades appear galvanized..here is 79 built in 78 63 amp..black in those years are chinesium rebuilds that suck..
no paint on mine at all pulley or fins front
From the NCRS TIMJG. I likened the fan to a zinc finish but then that was the work of the restorer
Fig. M 12.3 Alternator fan & pulley
Alternator Pulley & Fan Alternators are equipped with a zinc-plated pulley, stamped from sheet stock with a ½" groove. However, examples of a machined pulley are occasionally seen on L82s. A/C equipped cars use pulleys with 6 stamped on the face and are 2.65" in diameter. Non-A/C pulleys are stamped with a 7 and are 2.83" in diameter. All alternators use a silver-plated 11-blade fan. Blades are various sizes with one having an obvious notch
Olive is about right..blades appear galvanized..here is 79 built in 78 63 amp..black in those years are chinesium rebuilds that suck..
no paint on mine at all pulley or fins front
Olive is about right..blades appear galvanized..here is 79 built in 78 63 amp..black in those years are chinesium rebuilds that suck..
no paint on mine at all pulley or fins front
Curious to know if your 79 L82 W/AC pulley was stamped or machined.
Hard to tell from your photo above.
A machined pulley would have had a much squarer transition at the trailing edge into the belt grove.
Notice how the trailing edge of this #6 stamped pulley is more gradual (tapered) into the belt grove.
the replacements are crap.. lost 50 RPM same load.. always rebuild old.. IMO
original before restoring below too.. i did not blast it just clean.. nice color stator @bmotojoe
this is about 14000 miles after rebuild.. so a little dirty.. bought from one owner 28000 miles
Of NOTE.. MY pulley is 2.6 inches by caliper and 2 5/8 by tape measure outer most pulley... no idea if machined or stamped? I have every option but cruise electrically and i also have rear defog
Curious to know if your 79 L82 W/AC pulley was stamped or machined.
Hard to tell from your photo above.
A machined pulley would have had a much squarer transition at the trailing edge into the belt grove.
Notice how the trailing edge of this #6 stamped pulley is more gradual (tapered) into the belt grove.
what do you think machined? best pic i could take ..looks stamped
what do you think machined? best pic i could take ..looks stamped
I agree, looks stamped.
Like hunt4 said for a AC equipped car you might find a #6 stamped on the pulley.
My 77 A/C equipped pulley, #6 stamped just below the key-way.
01-05-2023, 03:52 PM
Alternator ?? 78 Pace car
