Powermaster 140 amp alternator squealing and heat

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BaLleRz68

Founding Member

Oct 9, 2001

150

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17

Sep 1, 2007

#1

• Sep 1, 2007

• #1

I started my car after installing my 140 amp powermaster alternator and let it idle for about 25 seconds. I noticed some squealing after reving past 2000 RPMS after startup then it went away. When I turned my car off I touched my alternator it was hot. I also noticed what might have been smoke coming from the alternator but Im not sure if it was just dust (car hasnt been driving in a long time). Should I change my the pulley on the powermaster alternator to my stock on? Any thoughts are appcreciated. Thanks.

 

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mustangman70

Founding Member

Dec 30, 2001

1,235

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St pete, Florida

Sep 1, 2007

#2

• Sep 1, 2007

• #2

BaLleRz68 said:

I started my car after installing my 140 amp powermaster alternator and let it idle for about 25 seconds. I noticed some squealing after reving past 2000 RPMS after startup then it went away. When I turned my car off I touched my alternator it was hot. I also noticed what might have been smoke coming from the alternator but Im not sure if it was just dust (car hasnt been driving in a long time). Should I change my the pulley on the powermaster alternator to my stock on? Any thoughts are appcreciated. Thanks.

Click to expand...

Im assuming you have the " [. . . .] " style pully on

Your belt may need a" [V] style pulley what sort fo belt are you using?

 

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BaLleRz68

Founding Member

Oct 9, 2001

150

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Sep 1, 2007

#3

• Sep 1, 2007

• #3

The powermater alternator has a v-belt pulley just like stock. The belt Im using is just a stock v-belt.

 

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outlaw66

New Member

Apr 1, 2005

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Flowood, Ms

Sep 4, 2007

#4

• Sep 4, 2007

• #4

Just like Mustang 70 said, the belt must be correct. A "V" belt is made to run on the sides of the "V", not the bottom. If the belt is bottomed in the "V", it will slip and heat the pully which in turn heats the alternator to the point of failure. All this can happen without any squeeling. In fact, it will work properly up until failure. At that point you will think the alternator is bad, and it will be, but it was ruined because the belt was the incorrect belt. Ask me how I know?

Outlaw

 

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Robdogg67

New Member

Dec 23, 2002

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Seattle/Tacoma, WA

Sep 4, 2007

#5

• Sep 4, 2007

• #5

I have the same alternator and had squealing with my v-belt initially. I purchased a "top cog" v-belt from Dayco, tightend the crap out of it and that solved my issue. I do not want to go sepentine. It's been working great over the last year but I still have not tested it out with my 600watt amplifier. I really like the quality of the Dayco belt, it seems like it has a softer compound (to help with gripping the pulley) than a traditional Gates type.

 

iskwezm

10 Year Member

May 24, 2005

4,159

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79

Rowland Heights,California

Sep 4, 2007

#6

• Sep 4, 2007

• #6

Robdogg67 said:

...... tightend the crap out of it and that solved my issue.

Click to expand...

Be carefull, too tight will waste the bearings on the alternator

 

DK832

New Member

Apr 11, 2006

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Copenhagen, DK

Sep 4, 2007

#7

• Sep 4, 2007

• #7

I was so frustrated by belt squealing that I ended up running a 3" blower belt on blower pulleys. End of squeal & slipping + has a nice whine to it.

 

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mustangman70

Founding Member

Dec 30, 2001

1,235

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St pete, Florida

Sep 4, 2007

#8

• Sep 4, 2007

• #8

I had a 1000 watt jl audio on my powermaster for quite a few months... No problems and the headlights were barely dim when seriosly loud

How much play do you have in the belt? I allways kept mine no less then a half an inch

 

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BaLleRz68

Founding Member

Oct 9, 2001

150

0

17

Sep 4, 2007

#9

• Sep 4, 2007

• #9

Thanks for all the input. I swapped the pulley for the stock one and the squealing seems to be gone. I will do an update once I start driving my car.