Re: 140 Alternator Pics-Test

Posted by Hugh MacKay on March 19, 2007 at 08:04:13 from (209.226.106.191):

In Reply to: Re: 140 Alternator Pics-Test posted by Nawlens Gator on March 19, 2007 at 06:57:44:

Nawlens: Actually that 5/8" threaded hole makes the 140 an easy fix. If I had mine scanned I send it to you, however I will describe what I did. I went a store specializing in bolts, bought one of those 2" long hex nuts 3/4" size. I cut it to 1-1/2" long, ran a 5/8" drill through it so 5/8 bolt would fit through it. I then welded a 3/16" plate on one of the flat sides of nut. Put the 5/8" bolt through it and threaded this on front side of that unused 5/8" threaded hole in block. My plate on flat side of nut extended to flush with back side of that hole in block. I then put another piece of 3/16" plate with a 5/8" hole on the bolt, letting it extend up past the plate. Those two are welded at right angles. Then I welded a tab at front end of plate, drilled holes throught the two upright tabs for alternator mounting bolt. That made the two upright tabs about 1/2" wider than the alternator base, thus I had to use several washers, but the washers also allow you to align the belt. By using one of those double pullies off an 80s V8 GM, and using outer pulley V this allows you to set alternator back about 1/2". That 1/2" allows the original 140 top belt adjustment arm to come straight to top of alternator, plus allows one to tuck alternator in closer to engine block.

I did much the same on my SA and 130, however they don't have that unused 5/8" threaded hole, thus I just welded a 3/16" plate on top of old generator mount, welded tabs on that for base mount of alternator. I do have a close up photo of my SA alternator scanned, and on all three, position of the alternator is much the same. If you wish send me an e mail and I'll send back that photo.

I will also tell you my SA having the Delco alternator has a 6 volt internal regulator and is still a fully functional 6 volt system. My 130 and 140 are both 12 volt. SA was done in 93-94 complete with new 6 volt battery. It has been completely trouble free, and I only changed that battery one year ago. 130 was done 12 volt about 2 years later and is on it's 3rd battery, 2nd alternator. 140 was done 3 years ago and to date works fine.

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