Alt belt squealing like a madman

PETC · 04-14-2006, 03:02 PM

Drove in the pouring rain today... and my alt belt wouldn't STFU.

First my voltage gauge would drop, then the belt would SCREAM for about 1-2 seconds and then stop. On the highway this happend once about every 1/2 a mile. Got off and losened the belt, don't know if that helped.

I don't have my under-motor plastic covers on. Could that be a problem?

MR2TRD1 · 04-14-2006, 03:20 PM

Mine used to make noise after washing the car. I replaced the belt and tightened it to spec. Those belts are so cheap you might as well just get a new one. If its tightened to spec...I don't think it should squeal unless you're in a puddle or something.

PETC · 04-14-2006, 03:25 PM

When I swapped my motor, I didn't change the harmonic resonator on the block, so the ribs were off on the alt belt because the motor I installed came out of a Celica... so I've gone through a lot of belts getting it right. This belt has less than 5K miles on it, and is installed correctly, and tightened to spec.

Mister2.2 · 04-14-2006, 06:35 PM

If everything is good with the belt and its tightened to spec I don't see why it would squeel... Does it do it when its not raining?

Gallagher005 · 04-14-2006, 07:19 PM

mine squeals not loud but just enough to piss me off when idling

CyFi · 04-15-2006, 12:22 AM

sometimes when idle goes low enough mine will send out and earth shattering squeel, il look into replacing it sometime.... how mucha re they anyways

Dillyumpshous · 04-15-2006, 01:12 AM

mine squeels only if i dont warm up my car in the morning.

PETC · 04-15-2006, 01:16 AM

The belt is brand new.

It only squeels in the rain.

Mister2.2 · 04-15-2006, 01:21 AM

Well then it must be getting wet somehow.... Is your hood free from any junk? I'm not all that sure that the little guard at the bottom would keep rain out but maybe that's the problem.

PETC · 04-15-2006, 01:10 PM

It's getting wet, because I don't have my underpanels on under my engine.

N8s93turbo · 04-15-2006, 01:31 PM

mine squeels for about 30sec when the car isnt warm, but its not loud.

Dillyumpshous · 04-18-2006, 02:08 AM

get the underpanel. i heard it can damage the spark plugs or something like that

CyFi · 04-18-2006, 02:12 AM

can squeeling wear it out more and cause it to snap or melt?

VTsuckah131 · 04-18-2006, 07:20 AM

Mine only squeels at start up after I wash her.

Mister-Twoster · 04-18-2006, 10:37 AM

Quote:

Originally Posted by CyFi

sometimes when idle goes low enough mine will send out and earth shattering squeel, il look into replacing it sometime.... how mucha re they anyways

I got my belt at NAPA for 11 bucks. But i get a GIANT discount there since my parents are partners with napa. I think the belt can be had for about 18 or 20 bucks otherwise. Or you can get one online at www.partznet.com or whatever. It will be around 10 + shipping.

My alternator belt use to squeel a lot on my NA. When i got my turbo, i let my NA sit for a week or so then went to start it and my alternator had seized up. Snapped the belt right off and im still in the process of replacing my alternator. So, id say that if everything is to spec, and youre SURE of that, then maybe your alternator is about to go? Just an idea. Good luck!

Luni · 04-18-2006, 10:58 AM

IF your belt is squealing or making noise its prematurely wearing. It WILL eventually die. All you guys with squeaky belts need to just replace the belt.

Tightening the belt might fix it, but depending on how long its been doing it for, you may have already shortened the belt life.

Just replace it. The belt is like 8 bux from napa. (IIRC)

MR2TRD1 · 04-18-2006, 11:12 AM

Quote:

Originally Posted by Dillyumpshous

get the underpanel. i heard it can damage the spark plugs or something like that

the spark plug tubes will just fill up with water which will cause rust, misfiring issues, corrosion, possibly broken plugs when you try to remove them.

Gairloch · 04-18-2006, 01:22 PM

I've been having issues with belt squeal myself on start up. I'm going to replace both my AC and alternator belts. I just hope to god it's not the timing belt or any related hardware.

Quote:

Originally Posted by Dillyumpshous

get the underpanel. i heard it can damage the spark plugs or something like that

Can anyone that's experienced what he's talking about corroborate this? Seems pretty unlikely to me.

PETC · 04-18-2006, 01:57 PM

Yeah... I've never had water on top of my engine.

I've got another belt in my trunk... I'll just hope it doesn't snap on some pouring wet day...

Mister-Twoster · 04-18-2006, 02:53 PM

Replacing the Alt belt is a chore if you ask me. Most people have told me it takes about an hour but it took me 3 hours or so. Its a pain in the ***

04-14-2006, 03:02 PM	#1 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,690 Thanks: 43 Thanked 65 Times in 53 Posts My Google Map iTrader Rating: (4/100% )	Alt belt squealing like a madman Drove in the pouring rain today... and my alt belt wouldn't STFU. First my voltage gauge would drop, then the belt would SCREAM for about 1-2 seconds and then stop. On the highway this happend once about every 1/2 a mile. Got off and losened the belt, don't know if that helped. I don't have my under-motor plastic covers on. Could that be a problem?

04-14-2006, 06:35 PM	#4 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,561 Thanks: 121 Thanked 115 Times in 99 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	If everything is good with the belt and its tightened to spec I don't see why it would squeel... Does it do it when its not raining? __________________ --Josh MR2Trader.com Free to Buy and Sell your MR2 Parts!

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

04-14-2006, 03:20 PM	#2 (permalink)
MR2TRD1 pimpin' valet ;-) Join Date: Feb 2005 Location: Atlanta Posts: 2,180 Thanks: 1 Thanked 37 Times in 34 Posts iTrader Rating: (19/100% )	Mine used to make noise after washing the car. I replaced the belt and tightened it to spec. Those belts are so cheap you might as well just get a new one. If its tightened to spec...I don't think it should squeal unless you're in a puddle or something.

04-14-2006, 03:25 PM	#3 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,690 Thanks: 43 Thanked 65 Times in 53 Posts My Google Map iTrader Rating: (4/100% )	When I swapped my motor, I didn't change the harmonic resonator on the block, so the ribs were off on the alt belt because the motor I installed came out of a Celica... so I've gone through a lot of belts getting it right. This belt has less than 5K miles on it, and is installed correctly, and tightened to spec.

04-14-2006, 07:19 PM	#5 (permalink)
Gallagher005 Watermelon Smasher Join Date: Mar 2006 Location: Arizona Posts: 566 Thanks: 10 Thanked 3 Times in 3 Posts My Google Map iTrader Rating: (1/100% )	mine squeals not loud but just enough to piss me off when idling

04-15-2006, 12:22 AM	#6 (permalink)
CyFi Moved on Join Date: Oct 2005 Location: Phoenix Posts: 1,401 Thanks: 12 Thanked 38 Times in 35 Posts iTrader Rating: (11/100% )	sometimes when idle goes low enough mine will send out and earth shattering squeel, il look into replacing it sometime.... how mucha re they anyways

04-15-2006, 01:12 AM	#7 (permalink)
Dillyumpshous ALL MOTOR Join Date: Apr 2006 Posts: 139 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (1/100% )	mine squeels only if i dont warm up my car in the morning.

04-15-2006, 01:16 AM	#8 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,690 Thanks: 43 Thanked 65 Times in 53 Posts My Google Map iTrader Rating: (4/100% )	The belt is brand new. It only squeels in the rain.

04-15-2006, 01:21 AM	#9 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,561 Thanks: 121 Thanked 115 Times in 99 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	Well then it must be getting wet somehow.... Is your hood free from any junk? I'm not all that sure that the little guard at the bottom would keep rain out but maybe that's the problem.

04-15-2006, 01:10 PM	#10 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,690 Thanks: 43 Thanked 65 Times in 53 Posts My Google Map iTrader Rating: (4/100% )	It's getting wet, because I don't have my underpanels on under my engine.

04-15-2006, 01:31 PM	#11 (permalink)
N8s93turbo TEAM A.S.S. RACING Join Date: Feb 2005 Location: Mississippi/Pennsylvania Posts: 2,450 Thanks: 5 Thanked 26 Times in 16 Posts My Google Map iTrader Rating: (14/100% )	mine squeels for about 30sec when the car isnt warm, but its not loud.

04-18-2006, 02:08 AM	#12 (permalink)
Dillyumpshous ALL MOTOR Join Date: Apr 2006 Posts: 139 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (1/100% )	get the underpanel. i heard it can damage the spark plugs or something like that

04-18-2006, 02:12 AM	#13 (permalink)
CyFi Moved on Join Date: Oct 2005 Location: Phoenix Posts: 1,401 Thanks: 12 Thanked 38 Times in 35 Posts iTrader Rating: (11/100% )	can squeeling wear it out more and cause it to snap or melt?

04-18-2006, 07:20 AM	#14 (permalink)
VTsuckah131 Sirc's secret lover Join Date: Feb 2006 Location: Northern VA Posts: 514 Thanks: 0 Thanked 13 Times in 12 Posts iTrader Rating: (1/100% )	Mine only squeels at start up after I wash her.

04-18-2006, 10:58 AM	#16 (permalink)
Luni Cage Fighter Join Date: Oct 2005 Location: Salt Lake City Utah Posts: 3,213 Thanks: 10 Thanked 130 Times in 110 Posts My Google Map iTrader Rating: (8/100% )	IF your belt is squealing or making noise its prematurely wearing. It WILL eventually die. All you guys with squeaky belts need to just replace the belt. Tightening the belt might fix it, but depending on how long its been doing it for, you may have already shortened the belt life. Just replace it. The belt is like 8 bux from napa. (IIRC)

04-18-2006, 01:57 PM	#19 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,690 Thanks: 43 Thanked 65 Times in 53 Posts My Google Map iTrader Rating: (4/100% )	Yeah... I've never had water on top of my engine. I've got another belt in my trunk... I'll just hope it doesn't snap on some pouring wet day...

04-18-2006, 02:53 PM	#20 (permalink)
Mister-Twoster shhwWAAAAA PSSHHHHHhhh Join Date: Oct 2005 Location: Carmel, IN Posts: 371 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Replacing the Alt belt is a chore if you ask me. Most people have told me it takes about an hour but it took me 3 hours or so. Its a pain in the ***