Author Topic: alternator squealing  (Read 5736 times)

April 17, 2009, 08:35:48 pm

jettabrendan

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alternator squealing
« on: April 17, 2009, 08:35:48 pm »
new belt, new alternator, same old irritating and embarrassing shreaking sound coming from under the hood. When i put a load on the alternator like a/c or even heat it starts. worse when its wet. Besides the hard to find splash guard, what other alternatives does one have to cover it all up?
1991 Jetta TD Dark Teal
1983 bmw e21 320is Hennarot
1997 Volvo 850 Black

Reply #1April 17, 2009, 10:12:07 pm

subsonic

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alternator squealing
« Reply #1 on: April 17, 2009, 10:12:07 pm »
Which car is it on?
2009 Jetta TDI Loyal edition, 6-spd. 16V 2.0CR


1985 VW Golf 5-spd, 4-door, 1.6NA  Bought from orig. owner in Savannah with 42,000 miles.
"Making the jump NA to TD" slow but sure.

1980 VW Rabbit LS 5-spd, 4-door 1.6NA almost 450,000miles  RIP

Reply #2April 17, 2009, 10:32:16 pm

jettabrendan

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alternator squealing
« Reply #2 on: April 17, 2009, 10:32:16 pm »
1991 and 92 td's
1991 Jetta TD Dark Teal
1983 bmw e21 320is Hennarot
1997 Volvo 850 Black

Reply #3April 17, 2009, 11:49:59 pm

8v-of-fury

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alternator squealing
« Reply #3 on: April 17, 2009, 11:49:59 pm »
What amp alt's? 65 or 90?

Reply #4April 18, 2009, 03:12:29 am

Patrick

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alternator squealing
« Reply #4 on: April 18, 2009, 03:12:29 am »
V belt is slipping on the alternator, I get it on a regular basis. You can try taking some sandpaper or emery cloth to the pulley (with the alternator out of the car). Pulley should come off the alternator in two pieces....... Too much wear, probably should have a new pulley.

Reply #5April 18, 2009, 03:16:56 am

Smokey Eddy

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alternator squealing
« Reply #5 on: April 18, 2009, 03:16:56 am »
Has anyone roughed up the pulley with emery cloth and not shredded the belt?

ps. is this in the correct section...
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD

Reply #6April 18, 2009, 06:42:29 am

burn_your_money

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alternator squealing
« Reply #6 on: April 18, 2009, 06:42:29 am »
Quote from: "Smokey Eddy"

ps. is this in the correct section...


It is now.
Tyler

Reply #7April 18, 2009, 08:49:43 am

8v-of-fury

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alternator squealing
« Reply #7 on: April 18, 2009, 08:49:43 am »
are you sure the belt has enough tension? i just replaced the belt and it was a tad bit smaller and it fits on real tight like. My car used to squeal ALL the time dry or wet :( it was embarrasing

Reply #8April 18, 2009, 10:34:00 am

jettabrendan

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alternator squealing
« Reply #8 on: April 18, 2009, 10:34:00 am »
Yeah the belt is tight it squeals even when I first start it and even if its bone dry.
1991 Jetta TD Dark Teal
1983 bmw e21 320is Hennarot
1997 Volvo 850 Black

Reply #9April 18, 2009, 10:35:50 am

jettabrendan

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alternator squealing
« Reply #9 on: April 18, 2009, 10:35:50 am »
I have air so it should be a 90 amp
1991 Jetta TD Dark Teal
1983 bmw e21 320is Hennarot
1997 Volvo 850 Black

Reply #10April 18, 2009, 01:51:57 pm

Smokey Eddy

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alternator squealing
« Reply #10 on: April 18, 2009, 01:51:57 pm »
Mine is starting to squeal to! I just replaced it last week!!!

I think it's just loose. Belts stretch over time.

Is your belt all smooth and shiny?
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD

Reply #11April 18, 2009, 03:13:18 pm

jettabrendan

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alternator squealing
« Reply #11 on: April 18, 2009, 03:13:18 pm »
Nope its brand new same as the alternator
1991 Jetta TD Dark Teal
1983 bmw e21 320is Hennarot
1997 Volvo 850 Black

Reply #12April 18, 2009, 05:18:42 pm

theman53

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alternator squealing
« Reply #12 on: April 18, 2009, 05:18:42 pm »
http://www.vwdieselparts.com/forum/viewtopic.php?t=8173&highlight=belt+tensioner

check out that link...I am doing that with my new turbo engine as soon as it is in. I started it already with the N/A. I replaced the bearing, retightened, sanded, etc and the thing would never stop squeeling. I had everything off the front of the engine put it all back on after inspecting and cleaning and it still did it....right now I have a metal piece with 2 small roller bearings on one end and a hole in the other just like the guy above. I think I even posted in that thread a couple of times when I started to make that piece.

Reply #13April 26, 2009, 04:41:17 pm

jettabrendan

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alternator squealing
« Reply #13 on: April 26, 2009, 04:41:17 pm »
i wonder if getting a new alt pulley will solve it?
1991 Jetta TD Dark Teal
1983 bmw e21 320is Hennarot
1997 Volvo 850 Black

Reply #14April 26, 2009, 06:09:55 pm

8v-of-fury

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alternator squealing
« Reply #14 on: April 26, 2009, 06:09:55 pm »
but you already got one when you got a new alt no? or did u have to use your old one?