My Odyssey threw a belt and the new one doesn't fit
#1
My Odyssey threw a belt and the new one doesn't fit
My 2002 Honda Odyssey's alternator/serpentine belt started making a whirring noise and then got thrown. It's mostly intact except one of the ribs has been stripped off. Not knowing why it would come off, I wiggled the tensioner a bit. It had a couple of millimeters of play so I figured it needed replaced. The new one has the same play and I was able to put the new belt on easily without even having to pull back the tensioner. I called O'Reilly's and verified the part number but I compared it to my old belt and it was a little bigger. I put the old belt (or what's left of it) on the pulleys and it was still way loose. I checked the alternator and a/c pulleys. Everything SEEMS good. Nothing wiggles and the pulleys spin.
Yes, I double checked the belt diagram. I've got it like this: (Not the same year but same diagram as far as I can tell)
My working theory is that the harmonic balancer (AKA crankshaft pulley) is worn down to the point that it is too small to hold the belt on. Here's a photo of that pulley. It measures at just under 6 inches in diameter. I've already spent $90 that I may or may not have needed to spend on this project. I'd rather not spend another $80 for nothing. Does this seem like the likely culprit? What else could it be?
Harmonic balancer (AKA Crankshaft pulley)
Yes, I double checked the belt diagram. I've got it like this: (Not the same year but same diagram as far as I can tell)
My working theory is that the harmonic balancer (AKA crankshaft pulley) is worn down to the point that it is too small to hold the belt on. Here's a photo of that pulley. It measures at just under 6 inches in diameter. I've already spent $90 that I may or may not have needed to spend on this project. I'd rather not spend another $80 for nothing. Does this seem like the likely culprit? What else could it be?
Harmonic balancer (AKA Crankshaft pulley)
#3
I haven't tried that. They appear to be the same size but I'll double check.
#4
If you haven’t already figured it out, or if someone else happens to land here trying to figure out why it’s still loose like I was, it’s the upper alternator stay bracket that bolts to the the head and the alternator. It’s broken, and it’s hard to see from the top. It costs about $40 from Honda, $15-25 on eBay, or if you happen to have a pick and pull salvage yard nearby you can get it for about $5-10.
I looked for for three days trying to see who had a similar problem, found this thread and still had no good answers. The alternator seem ok from above but when I pushed up from the bottom it moved up, Knowing it was supposed to be stationary led me to finally find the bracket broken in Two pieces
I looked for for three days trying to see who had a similar problem, found this thread and still had no good answers. The alternator seem ok from above but when I pushed up from the bottom it moved up, Knowing it was supposed to be stationary led me to finally find the bracket broken in Two pieces
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Nny_XX
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07-16-2015 11:58 PM