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1997 850 GLT Alternator?

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

1997 850 GLT Alternator?

Postby HareBall » 04 May 2008, 22:05

My problem started about 1 1/2 months ago. I went out after work to start the car and it didn't have enough power to turn it over. It had been a little slow starting for a few days, but always started.
I thought it would be the alternator, but when we jumped it off, I turned on the headlights and drove it home with no problems. I then charged the battery and didn't have any more problems until about 2 weeks ago. This time my wife left the vanity mirror open and I think it drained the battery.
I charged it again.
Then this week, I went out to go to work and it wouldn't start.
I pulled the alternator(what a pain :x ) and took it to Advance Auto. The guy there tested it and when he first pushed the button, the voltage gage would go to about 11 volts. He then let off and pushed it again and it went to 14.4~V.
I wasn't sure what to do, so I took the alternator to Autozone, but they couldn't check it. He said they didn't list this alternator in their software to he tested.
Any ideas?
Larry

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GLT Alt.

Postby drsugg » 05 May 2008, 03:20

Should test unit on car with load test. Volt regulators tend to drop out on older alt and will not allow full amperage output. Sounds like typical bad alt to me.
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Postby HareBall » 05 May 2008, 20:11

Thanx for the response. I took it in today to have it rebuilt.
Larry

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Postby HareBall » 07 May 2008, 00:18

I took my alternator to Gabby's here in Knoxville and he rebuilt it for $65.
Now I have another problem. When I put everything back together, I found that my serpentine belt had grown about 3 or 4 inches since Sunday.
I routed it around all the pulleys like the manual shows and now I have slack in the belt with the tensioner all the way towards the alt.
I removed the power steering pump again and could not find anything that would make the distance shorter than it should be.
Any help would be appreciated.
Larry

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Postby MadeInJapan » 07 May 2008, 02:42

You sure you're routing it correctly? There is a new routing you know, with the longer belt.

Image

Oh, and this might help too: http://volvospeed.com/Repair/850_serp.pdf
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
94 850 Sedan NA Drk Blue/Tan
'00 V40 Purple/Grey Mobil-1
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Postby Ozark Lee » 07 May 2008, 03:24

+1!

I think nearly all of the Volvos of this age have been converted to the "new" belt arrangement. It got me last weekend as well when I tried to do the old routing after changing the timing belt.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
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Previous: 1989 740 GLT
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Postby HareBall » 07 May 2008, 10:08

That must be what it is. I was going by the diagram from the Haynes manual download here.
I will try this when I get home today.
Thanx guys.
Larry

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Postby crazy_frog » 08 May 2008, 01:22

I seen this post and want to do my belt as well. It looks my belt has the new routing. My question is how do you get the tensioner to move? On my olds you put a socket on the bolt and turn it. What about these cars? I heard something about sticking a socket extension bar in the hole and turning it. What size wrench are you all using for that.
96' 850 Turbo 90k
90' 740 Turbo 150k
Portland, OR
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Postby MadeInJapan » 08 May 2008, 02:17

Whatever works...I've even seen a pr of vice grips with 2 quarters firmly mashed together being used to turn it upward.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
94 850 Sedan NA Drk Blue/Tan
'00 V40 Purple/Grey Mobil-1
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Postby timmyc » 08 May 2008, 02:43

[quote="crazy_frog"]I seen this post and want to do my belt as well. It looks my belt has the new routing. My question is how do you get the tensioner to move?

The tensioner is pretty easy to get to and the size of the square hole is 3/4 inch ( or the metric equivalent). I don't have a tool that is made for it ,but I made one from an old pry bar. I heated up the end with the "pry" part and bent it about 60-70 degrees (90 was too much). Works great for me! I'd sure like to see that two quarters in the vice grip trick! :D You know, a piece of 3/4 inch square steel would be the ticket!
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Postby MadeInJapan » 08 May 2008, 03:14

Sorry, I was wrong...it was 3 quarters: 8) http://www.matthewsvolvosite.com/serpentine_belt.php

Image[/list]
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
94 850 Sedan NA Drk Blue/Tan
'00 V40 Purple/Grey Mobil-1
MadeInJapan
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Model and Year: '98 S70 T5

Postby HareBall » 09 May 2008, 22:15

I did the math and figured out that front corner to corner the hole is right at 1". I had a piece of 1X1/4 inch flat stock and ground it down enough to fit catty corner in the hole. Just grabbed it with a pair of visegrips and turned.
Thanx for the help guys.
David check your messages.
Larry

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Postby MadeInJapan » 09 May 2008, 23:18

Got it Larry...send me an email so I have your email address to send you the file you specified.
MIJ
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
94 850 Sedan NA Drk Blue/Tan
'00 V40 Purple/Grey Mobil-1
MadeInJapan
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Postby HareBall » 09 May 2008, 23:47

David, you got another message with the address.
Larry

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