| Author |
Message |
Dan4104FL
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 29, 2006 - 7:49 pm: | |
I am installing a belt driven alt. and I need help..the accessory drive has a 1 1/4" shaft..where can I get a pulley and what diameter should it be..also I have a 130 amp leece neville alt..what size pulley should I have on that?? |
Casper4104
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, June 30, 2006 - 11:50 am: | |
Hey dan,
I can't help you with diameter. If you know how fast your alt. needs to turn, how fast your driving pulley is turning, and what diameter your driving pulley is, then we can do a little math and get a size.
A jillion pulleys are available from stock from McMaster-Carr supply company. I use them all the time at work and they're great. Fair price, 1 or 2 day delivery, good customer service.
Look here:
http://www.mcmaster.com/
And more specifically, here:
http://www.mcmaster.com/param/asp/PSearch2.asp?reqTyp=parametric&act=psearch&FAM=pulley&FT _2425=106325&FT_2411=105998&session=pulley,2425=106325;2411=105998&sesnextrep=520844940762947&ScreenWidth=1400&McMMainWidth=879
FWIW-YMMV-Good luck,
Casper |
Gus Causbie (Gusc)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, June 30, 2006 - 6:03 pm: | |
Dan,
I can send you a photo of mine if you like. I can't give you any details because it was installed when I got the bus but it sure works well. |
john w. roan (Chessie4905)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, June 30, 2006 - 8:08 pm: | |
Dan, I have a leece-neville 160 amp on mine; been on there probably 15 years... never had a problem with it.The origional generator setup is a pita, esp now that they make these alts.Mine has a two grove drive pulley installed in place of the generator location, which is about 6 1/2 inch diameter. the alternator has about a 3 inch two groove pulley. Looking straight in from the side engine door, there is a sort of a triangular plate mounted to the bellhousing bolts ( bottom of triangle is curved to match curve of bell housing ). Triangle is attached using grade8 longer bellhousing to block bolts. This triangle is approx 12 to 16 inches long.When this is on engine, the bracket looks like a square corner with ( still looking in at end of engine ) starts at three o'clock on the bell housing, goes vertical about six inches, then makes a right angle, ending about eleven o'clock. At the right angle of the plate is welded a spacer corresponding to the distance between the ears on the alternator.At the eleven o'clock or left end of this triangular plate, is where the adjusting brace is attached. The other end of this brace is curved and slotted. BTW, the point where the previously mentioned spacer is welded, we have little triangular gussets welded to it to properly support weight of alternator, also my plate is 1/2 inch thick.Designed it all with patterns made of cardboard till it came out right, then copied onto steel. Alternator mounts forward of drive pulley and centerline of alternator pulley is slightly below center line of drive pulley if you check it with a level. When in place, the backside of the alternator faces away from the end of the engine. When the belts are tightened,the alternator case clears the drive pulley by about 1 to 1 1/2 inches.In another words, short belts This enables everything to easily clear the shift rods.Get a drive pulley from a detroit truck engine as they use belt driven alternators.Off a 6-71 would make it the easiest. Hope this isn't too confusing. Use matched HD belts. |
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