Quote:
Originally Posted by Held for Ransom
The blower motor will probably draw 10-15A on start up and drop to 5-7A to run. An electric grid will draw a lot for longer periods requiring a more stout alternator. '71 they realized they needed to go to the larger 12SI alternator.
Either defogs were an option. Option 341 is the 6 cylinder engine.
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The '71-75 ( possible 76) Large 80 amp Fixed in place Alternator use with hi amp options
is a >> type 27Si <<
The type 12Si is a newer upgrade of the 10si, and has same size and plastic fan in front.
Just trying to keep the facts right, no offense ..
I agree, the Grid types draw More current for longer periods. I have Never seen a 1970 with the rear window grid system.