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Posted: 8/18/2004 8:09:32 PM EST
Link Posted: 8/18/2004 8:10:21 PM EST
You know...if you told us what type of car it JUST MIGHT HELP!!!!!!!!


Sgtar15
Link Posted: 8/18/2004 8:11:31 PM EST

Originally Posted By sgtar15:
You know...if you told us what type of car it JUST MIGHT HELP!!!!!!!!


Sgtar15



Very good point. They are not all the same.
Link Posted: 8/18/2004 8:11:50 PM EST
Link Posted: 8/18/2004 8:12:45 PM EST
Link Posted: 8/18/2004 8:14:29 PM EST
Link Posted: 8/18/2004 8:14:31 PM EST
I am assuming it does NOT have a tensioner pulley on that motor.


Basically tighten it as tight as you can. It then should have about 1/2" of play in the belt at the longest section.


SGtar15
Link Posted: 8/18/2004 8:15:22 PM EST

Originally Posted By iNuhBaDNayburhood:
I know how to change out the alternator on my car. I'll be doing that tomorrow afternoon. My question is how do you tell if you've tensioned the belt enough, or too much?

I need to tension my belt to a maximum of 145 lbs, but the manual doesn't say a minimum tension...

I'm probably going to have to "wing it" by hand and guessing if they're about the same tension. If things don't work out, there's trial & error.



Loosen alternator...

Pull REALLY REALLY HARD to apply tension...

Tighten bolt...
Link Posted: 8/18/2004 8:15:27 PM EST
I HIGHLY doubt you can over tighten this belt....unless you REALLY SERIOUSLY pull on it.


SGtar15
Link Posted: 8/18/2004 8:16:20 PM EST
If it is too loose you will know by a loud screaming noise at start up. Don't pry like a maniac either or you could put undo wear on your bearings in your water pump and alternator.
Link Posted: 8/18/2004 8:16:49 PM EST
Don't over tighten or you can wear out your bearing in the alt.

Like sarge said, make sure you have a little play.
Link Posted: 8/18/2004 8:17:02 PM EST
Link Posted: 8/18/2004 8:17:39 PM EST

Originally Posted By sgtar15:
I HIGHLY doubt you can over tighten this belt....unless you REALLY SERIOUSLY pull on it.


SGtar15



Get a big enough bar and you can. Trust me.
Link Posted: 8/18/2004 8:17:41 PM EST

Originally Posted By iNuhBaDNayburhood:
Good advice, guys!

Shit you people are FAST with responses!!!

Thanks!!!



We live to help people.

It is our calling.


SGtar15
Link Posted: 8/18/2004 8:17:48 PM EST
Link Posted: 8/18/2004 8:18:31 PM EST
You know you've tightened it enough when

1. The alternator generates electricity and charges the battery

2. The belt doesn't squeal like Ned Beatty.
Link Posted: 8/18/2004 8:20:36 PM EST
Link Posted: 8/18/2004 8:22:22 PM EST
Over-tightening your fan belts (especially on older cars, with multiple belts that go around the water pump) can shorten water pump life. Too much tension one way can cause the water pump's shaft to pull to one side, prematurely wearing it. BEST advice? Go buy a belt tension gauge. Probably unecessary, but if you want to tension to the specified 145lbs, do it.
Link Posted: 8/18/2004 8:23:59 PM EST
Link Posted: 8/18/2004 8:24:20 PM EST
did you use a factory belt or a cheapo?

I used some cheapos on a car I have and it was screaming like a stuck pig. I changed to factory belts and it went away.
Link Posted: 8/18/2004 8:26:31 PM EST
Link Posted: 8/19/2004 6:14:27 AM EST
+1 to 1/4 to 1/2 inch of play when it is tight. There is a tool to test tension but I've never heard of any shade tree guys using one.

GunLvr
Link Posted: 8/19/2004 6:27:19 AM EST
Well, if you had a '65 Tempest, I would say that either your voltage regulator is shot or one of your windings is shot. However, all that stuff is internal now. If you have a battery gauge or a meter, when your car is at idle with minimum electrical load, your battery should be reading about 14 volts. If your belt has less then 1/2 an inch of deflection and you're pulling 14 volts, you've got it tight enough.

My Tempest has been through two alternators and two belts in four years. I have become extremely adept at swapping out alternators. I finally bought a '92 Delco 90 Amp Alt that was internally regulated and jumpered around the external regulator. No more alternator problems.
Link Posted: 8/19/2004 1:15:27 PM EST
Link Posted: 8/19/2004 1:24:01 PM EST
Link Posted: 8/19/2004 2:08:13 PM EST
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