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| | | | Joined: Oct 2011 Posts: 118 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2011 Posts: 118 | have a 48 gmc 1/2ton, but in a 12 volt alternator, pulley alittle more narrow on alt., bottom pulley on motor turns but belt spins around, burning up belt, what to do... | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | get a wider pulley for the alternator
get a narrower pulley for the balancer
get a belt that splits the width difference and doesn't ride the bottom of the balancer groove
belts come in a wide range of dimensions, they make drive contact on the angled sides, should not be tight to the bottom of the groove, but can be slightly proud of the top when tight
Bill | | | | | Joined: Oct 2011 Posts: 118 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2011 Posts: 118 | where would I get a wider pulley for alt., can I take off my 6 volt gen. and put on my 12 volt? | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | alt pulleys are a small diameter, so if the gen one is much bigger, not a good plan - and gen and alt usually have different type shafts, but worth checking out whether it'll work .... otherwise an auto electric shop might have one kicking around, or could try the wreckers
Bill | | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | where would I get a wider pulley for alt.?
Save a life, adopt a senior shelter pet.
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Name your dog Naked so you can walk Naked in the park.
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | I just purchased this one from speedway ...click... It's cheaper to purchase from their eBay store instead of the web site Shipping is less and no tax for some. | | | | | Joined: Oct 2011 Posts: 118 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2011 Posts: 118 | thanks for info guys, will try electric shop first, then ebay... thanks | | | | | Joined: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | just make sure you get the right diameter of what ever you get, they aren't all the same and it will mess with water pump/generator speeds. Which may or may not be OK, but the original sizes will be OK for sure.
Last edited by brokenhead; 05/21/2013 6:42 AM.
| | | | | Joined: Jun 2010 Posts: 1,001 Shop Shark | | Shop Shark Joined: Jun 2010 Posts: 1,001 | I solved this problem the hard way on my '52...mainly for ease of future upgrades. I replaced the stock balancer with a two grove (3/8") balancer purchased from Buffalo Enterprises. I also purchased a water pump for a '53 216 (has 3/8" pulley). Now, I am setup for standard modern 3/8" belts for alternator and A/C compressor. | | |
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