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Im changing the accessory belt on 97 deville 4.6. The 1/2 inch braker bar was too big. Does anybody know what size breaker bar I need?

The correct breaker bar is 1/2", here is the instruction from your service manual:

Install a 1/2 inch drive extension into the belt drive tensioner (6).

Push down on the extension to release tension.

Remove the drive belt from the power steering pump (1).

Slowly return the tensioner to the original position. Remove the belt.

SerpBelt-1.gif

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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The water pump tensioner is 1/4", but you said "accessory" belt. That's 1/2".

Very good point Ranger, I immediately moved to the serp belt that was 1/2" and assumed he did not see the notch

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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  • 2 weeks later...

Im changing the accessory belt on 97 deville 4.6. The 1/2 inch braker bar was too big. Does anybody know what size breaker bar I need?

The correct breaker bar is 1/2", here is the instruction from your service manual:

Install a 1/2 inch drive extension into the belt drive tensioner (6).

Push down on the extension to release tension.

Remove the drive belt from the power steering pump (1).

Slowly return the tensioner to the original position. Remove the belt.

SerpBelt-1.gif

It was a 1/2 inch. I was going based on what ny friend told me. It was dark when he was helping me and he said he tried the 1/2 inch and said it wouldn't fit. Guess I should have tried it myself. Thanks.

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