Awesome. I'm convinced that I need to go find the proper alternator, but am curious- you say the second belt provides traction to the AC compressor- does it serve an other purpose? What if I don't care about AC?tgreese wrote:In your case, it looks like a DSPO (dip stick previous owner) replaced the alternator and did not switch over the pulley. You need a second belt to provide the traction needed for the AC compressor. Maybe you can find a source for an alternator with the proper pulley. Check junkyards if the parts store can't help (likely).
The belt width is right, but it's too long. The length adjustment on the alternator should be near the middle. Any parts store can sell you a shorter belt - that's easy. Either get the right part for your application, or have them measure the belt (they should have a device for that) and get one that's a couple inches shorter. Usually the length is printed on the belt, so it may be as easy as reading it. If you had a dual pulley, you'd buy a pair of belts from the same maker at the same time, so they will be the same length when installed and work together. This is very easy, trivial stuff for any competent mechanic. Does not reflect well on the places you went to.
Thanks! You all and your acronyms- WTB?will e wrote:The squealing means slipping. Slipping means heat. It will contribute to early belt failure. But driving it shouldn't be an issue. When you get a two groove pulley, replace both belts.
I would bet there are a bunch of people who have a spare pulley. Post up on WTB and I bet you will get a quick response.
Likely you have the right alternator but the wrong pulley. If you can find a pulley, you can replace just that. If a shop would have replaced the alternator, they would have swapped the pulleys and sent back your core with the single-groove pulley.memsiej wrote:Awesome. I'm convinced that I need to go find the proper alternator, but am curious- you say the second belt provides traction to the AC compressor- does it serve an other purpose? What if I don't care about AC?tgreese wrote:In your case, it looks like a DSPO (dip stick previous owner) replaced the alternator and did not switch over the pulley. You need a second belt to provide the traction needed for the AC compressor. Maybe you can find a source for an alternator with the proper pulley. Check junkyards if the parts store can't help (likely).
The belt width is right, but it's too long. The length adjustment on the alternator should be near the middle. Any parts store can sell you a shorter belt - that's easy. Either get the right part for your application, or have them measure the belt (they should have a device for that) and get one that's a couple inches shorter. Usually the length is printed on the belt, so it may be as easy as reading it. If you had a dual pulley, you'd buy a pair of belts from the same maker at the same time, so they will be the same length when installed and work together. This is very easy, trivial stuff for any competent mechanic. Does not reflect well on the places you went to.
You may be right. Though as you go up in amperage, the load on the belt increases. For a 63 amp alternator, I'm sure one belt is fine (even though I like to have more than one "just in case"). But go up above 100 amps and you really start to need that second belt.tgreese wrote:Derf makes good points, but IMO the contact patch isn't all that small compared to other apps with one belt. If it's a problem, using a shorter belt, you can skip the AC pulley and get more contact. But I think it's going to be ok - looks to me like the belt adjustment on the alternator is way out on the end, and it can't be tightened enough not to squeal. I think the shop was right about this. How much can you deflect the belt?
Could be too narrow. That would make the belt sit down in the grooves and be effectively longer. There's a clear label on it - I think it's Gates - read the PN and check on RockAuto if it's what's spec'd for that app. Belt width varies by mfr and both width and length will be considered in matching a part to an app.letank wrote:agree w previous posts, but that alt belt looks too narrow, When my alternator gave up, the store did not have matching belts, so still running 1 belt, but no AC compressor for the last 6 year, it is a 75A, not an 85A as recommended w AC