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Stretching belts? |
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Romeo 
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Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
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 Topic: Stretching belts?Posted: 05 July 2010 at 10:46am |
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Ok, I know it sounds weird, or like something else has gone wrong, but I have checked literally EVERYTHING, and my belt has gotten looser, which is bad, because my alternator is as far as it can go in the bracket, so I can't tighten it further. It is so loose there's about 2-3" worth of movement I can do by hand, it doesn't stop after starting up and it squeels at absolutely any RPM. Also, there's little pieces of rubber (About the same size as dust mites) everywhere, so it's obviously wearing out somewhere. So, I know I'm going to have to get a new belt, but before I do, does anyone have any idea what could've caused this? |
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Dawg
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Posted: 05 July 2010 at 11:39am |
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One of your pulleys could be out of round somehow or wobbling "up and down" (eccentric). A bent shaft?
On my last truck, the clutch on my water pump was slightly bent from an accident. You couldn't see it with the naked eye and the seller said nothing. It ate a belt every 8 months or so till I figured it out. DG |
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Dawg
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Posted: 05 July 2010 at 11:46am |
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I just reread your post and the little bits make me think the belt is just being over worked. Something there doesn't want to turn. Does everything spin easily? Do you have a bad battery or phantom loads that make your alternator work hard all the time?
Could be a combination of my first post and this one. DG |
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Patrick
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Joined: 19 April 2008 Location: Vancouver Status: Offline Points: 5 |
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Posted: 05 July 2010 at 12:13pm |
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I still haven't placed my order yet if you're interested - Here.
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Dr.Fiero
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Posted: 05 July 2010 at 2:18pm |
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If the pulleys are fubared, it'll eat belts too.
See if the tips of the ribs are pointy, or rounded off and smooth (you might have to look at another for comparison). |
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Romeo
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Posted: 05 July 2010 at 6:53pm |
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Yep yep, I'll do an autopsy on the belt tomorrow and check everything else for resistance/electrical loads and that should further narrow things down. But does that explain why the belt is bigger?
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Capt Fiero
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Posted: 05 July 2010 at 6:56pm |
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Belts do stretch with age, also as a new belt wears into the grooves on the pulley it can seem like it has stretched even when it is not. On Lisa's V6 auto, it had a belt squeal, I removed the belt took an SOS pad and scrubbed all the pulleys, put the belt back on and it was perfect. It was slipping so bad in fact that the alternator would quit charging.
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Capt Fiero
88 Fiero GT 5spd V6 Eight Fifty Seven GT V8 5spd. |
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Romeo
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Posted: 05 July 2010 at 8:04pm |
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Alright, will try that tomorrow as well.
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Never shift into reverse without a back-up plan.
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Dawg
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Posted: 05 July 2010 at 10:56pm |
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If a pulley is wobbling it will over tighten for a microsecond as it turns and jack hammer the belt to death. DG
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Romeo
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Posted: 06 July 2010 at 8:03pm |
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So the pulleys all turn well and straight (By eye, I don't have measuring tools for it) however I did notice that the pulleys don't appear to be lined up with one another (So the belt would turn cockeyed). Anyways, have a new belt on, but any ideas how one could fix that?
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Dr.Fiero
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Posted: 06 July 2010 at 8:21pm |
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Do the crank and water pump pulleys look in line, but the alt is kicked over to one side or the other?
If so - someone probably put the wrong, or wrong number of spacers behind the pulley/fan at some point. |
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Romeo
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Posted: 06 July 2010 at 8:34pm |
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No actually, that's the weird thing: The crank looks further "outside" than the water pump (As in center of the WP pulley looks like it lines up in between the v-belt and serpentine sections of the crank). Can't really tell if the alternator is out or not (In line with the crank, out of line with the water pump).
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Dawg
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Posted: 06 July 2010 at 8:58pm |
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Ack! Belts don't like that. Especially these flat belts.
Sounds like something is seriously f'ed up. Maybe you've got the wrong harmonic balancer? Hmmmmmm.......???? DG |
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Romeo
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Posted: 06 July 2010 at 11:18pm |
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I suppose it is always a possibility. Truth be told, I'm not sure how things are supposed to look in the belt department. Maybe at the meet someone could sneak a glance and say "Everything's peachy" or "Well Tristan, she was a good car..."
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Patrick
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Posted: 06 July 2010 at 11:29pm |
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Might be a couple of 2.8's at the meeting you can have a look at.
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Dawg
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Posted: 06 July 2010 at 11:59pm |
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Bring a yard stick or some other straight edge and we'll compare pulleys.
DG |
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Romeo
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Posted: 07 July 2010 at 1:29pm |
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Nah Patty, "no one bothers with the 2.8s. You can save so much time and money just going to a V8". That's what some crazy old man keeps telling me, anyways. And will do, thanks for the idea Damien. |
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Romeo wrote:
