belt tensioner replacement?

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belt tensioner replacement?

Postby Nathaniel Gjr. on Thu Mar 27, 2008 1:51 am

I check ed my alternator, it is not recharging properly, so i plan on either replacing it with a gm one, or just getting another one from autozone. but i noticed that my belt tensioner seems to be acting funny. the belt is tight, but when you rev the motor, it seems to jump when you let off the gas. is this normal? is it hard to replace. i mean would i need the entire assembly or the pulley itself and a socket? anyone got a pic or vid of the tensioner being changed?


NatGjr. :mtt:
Negative people are fuel for your positivity. 1989 Buick lesabre T-type Garnet Red Red,Black leather Interior, all power, repro rear spoiler,Pontiac Bonneville dual outlet exhaust muffler,new timing gears,kyb GR-2's. One of GM's last great cars. 1998 Buick regal GS sedan Green/Grey, supercharged.
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Postby Alibi on Thu Mar 27, 2008 1:56 am

I think the tensioner has to be replaced as a unit as the pulley itself is not meant to be replaced.

But... I think its only held on by 2 or 3 13mm bolts but I've never done one personally.
-Eric
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Postby 88T-FL on Thu Mar 27, 2008 3:02 am

Hello,
You can replace the pulley. Mine was making noise (bearing). The bolt comes out with a little effort - pretty sure it is reverse thread.
Thanks - Peter
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Postby Tricked-T on Thu Mar 27, 2008 3:15 am

Peter is right. I replaced the pulley on my 88 cause it went bad and came apart, had to roll to a friends with no power steering, or anything, lucky it was not far. Got a handful from the yard looked them over real good and found one that didnt make a sound :)
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Postby Alibi on Thu Mar 27, 2008 3:23 am

88T-FL wrote:Hello,
You can replace the pulley. Mine was making noise (bearing). The bolt comes out with a little effort - pretty sure it is reverse thread.
Thanks - Peter


:pat: Looks like I spoke too soon :P
-Eric
"Energy and Persistence Conquer all Things" -Benjamin Franklin
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Postby Nathaniel Gjr. on Thu Mar 27, 2008 3:55 am

Ok , so it seems it is as simple as releasing the tension, moving the belt, and removing the pulley and then just bolting one back in? If thats the case i can buy the parts saturday and put them in next weekend.

Nat Gjr. :mtt:
Negative people are fuel for your positivity. 1989 Buick lesabre T-type Garnet Red Red,Black leather Interior, all power, repro rear spoiler,Pontiac Bonneville dual outlet exhaust muffler,new timing gears,kyb GR-2's. One of GM's last great cars. 1998 Buick regal GS sedan Green/Grey, supercharged.
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Postby 88T-FL on Thu Mar 27, 2008 11:39 am

Hello Nat,
Newer pulley may look a bit different than those from 87-89 but are correct and work fine.
Thanks - Peter
88 BLT, 89 BLT, 89 BLT (Sold and missed), 86 LGN, 86LGN
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Postby Dirtracr95 on Thu Mar 27, 2008 6:00 pm

but it seems like his problem is there is not enough tension so the entire tensioner needs to be removed not just the pulley. and it is normal for the tensioner to move a little when you rev the engine. now if it moves alot and it seems like the belt is slipping then you have to replace the tensioner.

the whole replacing just the pulley thing is if the bearings are worn out and making noise.
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Postby Nathaniel Gjr. on Fri Mar 28, 2008 1:08 am

Thanks for the responses. The tensioner seems to move alot when you rev the motor and let off the gas. it makes a kind of crackle noise and moves a little. The belt is still good, but the alternator is not charging the battery back up like it should. i think the best thing to do is to just replace the alternator and then examine the pulley more carefully. any one else have any ideas? should the pulley move more than a little when pushed by hand?

Nat Gjr. :mtt:
Negative people are fuel for your positivity. 1989 Buick lesabre T-type Garnet Red Red,Black leather Interior, all power, repro rear spoiler,Pontiac Bonneville dual outlet exhaust muffler,new timing gears,kyb GR-2's. One of GM's last great cars. 1998 Buick regal GS sedan Green/Grey, supercharged.
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Nathaniel Gjr.
2005 Site Supporter
 
Posts: 2480
Joined: Wed Mar 20, 2002 1:00 am
Location: Brooklyn,NY, Graves end section
car:: 89 Lesabre T-type


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