1989 Oldsmobile Cutles Ciera 2.8 liter engine. I want to ...

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The diagram shows a black disk attached directly to the alternator (caption says place wrench here). This part does not exist on the auto or in the accompanying diagram showing the route of the belt. Below the alternator on this diagram is the "tensioner" but on the car I dont see a bolt in the center that can be loosened.

Diagram shows the alternator with a black disk attached along with the caption "place wrench here..." This does not exist on the car. Diagram on the right shows belt pathway. Below alternator is a wheel "tensioner". On the car I see this wheel but do not see a outward bolt that you can put a wrench on.??

we are correct that this is a 1989 2.8 in a cutlas Ciera. That is the info I have on these. In the middle of the pulley on tensioner there should be a bolt head that you put wrench on and rotate the whole tensioner to take tension off belt.

Ok I beleive the picture shows the tensioner backwards look for a square hole to place a 3/8 rachet into and releive the tension

Edited by crazi429 on August 28 2006 at 12:44pm

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You have the correct model etc. I looked again and found that while the tensioner pulley itself has no bolt in its center there is a short bracket holding it to the block that has a single 1/2 inch bolt. I assume that this is the one that I can loosen. Am I correct? Are there any special tools (other than socket wrenches) required to uninstal and reinstal the alternator?

No there should be a point close to in line with pulley to attach rachet/wrench to. Then rotate tensioner up to take tension off the belt. I have tried to find a picture that shows the other side of tensioner but I have not found one as of yet.

No special tools required just be sure to disconnect battery and watch when removing nut from output stud. They have a tendicy to spin the stud in the housing and breaking the terminal of end of wire. When disconnecting battery you will need to relearn Idle with out a scan tool you will need to take it out and run it for 15 minutes at highway speed. Be aware that till Idle is relearned it my die when coming to a stop.

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When you refer to the output stud I guess your talking about the wire coming out of the alternator.. What steps do I need to take to avoid breaking the terminal off the end of the wire? Also will idle be relearned after running car for 15 minutes at highway speed?

Ussually you can fit another wrench behind the wire the stud is square and hold it. It ussually doesn't take much to hold it.

Yes It should relearn Idle speed as long as you can run above 40 mph for a few minutes I ussually prefer to get on highway and run for 15 min to make sure it relearns.

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Thanks Tim