Some Alternator Help

[COPO 70 RS/Z28]

Can anyone tell what's missing or what the problem might be that is causing the alt to be about 1/4 inch out of line with the pump & crank. I cant seem to find a good diagram in my assem manual. Unfortunately I dont remember if this problem existed before I removed the alt. I'm pretty sure I got it back together the way it came apart. It's a 69 alt.

Any ideas!!!!!

It's on a 70 z28

http://i271.photobucket.com/albums/jj121/70COPORSZ28/P3080111-1.jpg http://i271.

[img]http://i271.photobucket.com/albums/jj121/70COPORSZ28/P3080115-1.jpg

http://i271.photobucket.com/albums/jj121/70COPORSZ28/P3080117-1.jpg

Thanks

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[Mr70]

Carl
It might be your camera angle,but is that an incorrect thin stamped Alt. pulley you're running?..That or do you have a standout spacer behind your waterpump pulley?
The correct deepgroove W/P pulley is stamped #3976060 and should not have any spacer behind it.
The correct deepgroove machined Alt.pulley is #1970831 and won't have a number stamped on it but it does stand out 1/4" from the fan surface.
Rick

[COPO 70 RS/Z28]

The water pump & crank pulley line up perfect, I bet the alt pulley is wrong. If I read correctly you said the correct alt pulley would pull the belt forward 1/4" ??

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[Mr70]

It sits off the fan face about a 1/4".
Here's one for reference on D&R Classics' website,although they didn't come shaded gold from the assembly line back then.
http://www.drclassic.com/catalog/Camaro/Underhood/M00228.html

[COPO 70 RS/Z28]

Thanks Rick,

Ill try the repop. I have some old alts laying around. I can get an old fan off of one of them. Is the 1100837 fan different or are they all the same?



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[Mr70]

Aim for a shark tooth.... EXAMPLE (http://cgi.ebay.com/ebaymotors/68-70-302-350-396-427-454-Z28-LS6-ZL1-ALTERNATOR-FAN_W0QQcmdZViewItemQQcategoryZ33573QQihZ017QQitem Z270217481768QQrdZ1QQsspagenameZWDVW)

[COPO 70 RS/Z28]

Ill keep my eyes open,

Some one just picked that one off!

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Got one http://www.yenko.net/ubbthreads/images/graemlins/biggthumpup.gif

[Mr70]

Yeah that seller has a bunch of those w/BIN.
Good for you..and Frank Arone too. http://www.yenko.net/ubbthreads/images/graemlins/biggthumpup.gif

[Keith Tedford]

I bought a couple of new fans from GM. They aren't quite the same as the original one but don't cost much.

[COPO 70 RS/Z28]

Mr 70

If Alt.pulley #1970831 was a original factory item would it be minus the keyway??????



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[Mr70]

They originally had a key way.

[COPO 70 RS/Z28]

Thanks,

I ran across one represented as NOS but no keyway??

Thanks again for the help. http://www.yenko.net/ubbthreads/images/graemlins/worship.gif http://www.yenko.net/ubbthreads/images/graemlins/worship.gif

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