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  • 3.8L A/C Delete serpentine belt info.

    For those of you that want to get rid of the A/C on your 3.8 with or without removing the compressor and didn't want to have a random pulley sitting off to the side. I deleted everything. Soo I did my diligence and have searched other forums with only one answer. Supposedly a 60.5" or 61" belt would work if routed correctly. I tried a 60.75" belt and a 62.125" belt and nothing worked. Soo I did some more thinking and found that if I could find a 80" belt I would be set unfortunately I couldn't find that but I did find a 81" belt Duralast 810K6. Unfortunately the belt was still too loose under load. So I found the DAYCO 89001 pulley to swap withy tensioner pulley the DAYCO is 1/2 bigger and has sides to help keep the belt in place. I did have to use a washer as a spacer behind it to keep from rubbing but it worked well. I also had to cut the plastic tab that helped keep the wires from rubbing the belt. These cars are Soo old those wires won't move anyway. I also haven't had any problems as of yet. I will post more if something changes.
    Attached Files

  • #2
    Nice, I’m just going to run a ribbed idler. But I’ll keep this in mind for when I add my turbo. Don’t know if the idler can be run with the turbo pipes. Your way definitely makes more room.
    Last edited by ssms5411; 05-25-2020, 10:54 PM.
    08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
    96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

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    • #3
      I went with a shorter belt similar setup, but I had zzp’s underdriven water pump pulley. Pretty sure I threw out my short belt when I parted the car out so I can’t measure what I used. It’s a nice setup without A/C - lots more room to move lol

      2002 SOM Z28 Camaro - 12.9 @ 104 mph
      1996 3800 Camaro - 13.43 @ 100.77 mph


      Project Cars | How To Guides | Scratch Repair | Synthetic Oil

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      • #4
        I tried that for a little while, and I don't recommend it. Even if the tensioner is tight, it's not putting direct enough pressure on the belt where it needs to be. I was slinging belts off left and right. That was when I came up with this. The belt is much tighter now and a lot easier to replace.
        Click image for larger version

Name:	Belt routing take 2.jpg
Size:	107.0 KB
ID:	1576477
        The belt is a Dayco 5060800 which should be stocked at every parts store, and the tensioner pulley is a Dayco 89015.

        Comment


        • #5
          Originally posted by v6buick View Post
          I tried that for a little while, and I don't recommend it. Even if the tensioner is tight, it's not putting direct enough pressure on the belt where it needs to be. I was slinging belts off left and right. That was when I came up with this. The belt is much tighter now and a lot easier to replace.
          Click image for larger version

Name:	Belt routing take 2.jpg
Size:	107.0 KB
ID:	1576477
          The belt is a Dayco 5060800 which should be stocked at every parts store, and the tensioner pulley is a Dayco 89015.
          That is why I increased the size of the tensioner pulley from the stock size of 3" to a 3.5" rimmed pulley to get the belt tight.

          Comment


          • #6
            Originally posted by v6buick View Post
            I tried that for a little while, and I don't recommend it. Even if the tensioner is tight, it's not putting direct enough pressure on the belt where it needs to be. I was slinging belts off left and right. That was when I came up with this. The belt is much tighter now and a lot easier to replace.
            Click image for larger version

Name:	Belt routing take 2.jpg
Size:	107.0 KB
ID:	1576477
            The belt is a Dayco 5060800 which should be stocked at every parts store, and the tensioner pulley is a Dayco 89015.
            Interesting. Did that reverse the direction of your water pump? (looks like it did). I didn't know they could be reversed without having issues? I need to look at the fins on a water pump now lol

            2002 SOM Z28 Camaro - 12.9 @ 104 mph
            1996 3800 Camaro - 13.43 @ 100.77 mph


            Project Cars | How To Guides | Scratch Repair | Synthetic Oil

            Comment


            • #7
              Originally posted by RedneckinaRAV4 View Post

              That is why I increased the size of the tensioner pulley from the stock size of 3" to a 3.5" rimmed pulley to get the belt tight.
              I tried that but it still slung belts. I had the biggest pulley I could install without running into water pump clearance issues.

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              • #8
                Originally posted by LETZRIDE View Post

                Interesting. Did that reverse the direction of your water pump? (looks like it did). I didn't know they could be reversed without having issues? I need to look at the fins on a water pump now lol
                It's not reversed. If you don't change the pulley, and the belt is still riding on the correct surface then that pulley will always spin in the same direction. The only pulley I changed was the tensioner. It's ribbed now.

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                • #9
                  Originally posted by RedneckinaRAV4 View Post

                  That is why I increased the size of the tensioner pulley from the stock size of 3" to a 3.5" rimmed pulley to get the belt tight.
                  I just noticed that your pulley also has guides on it so it should work okay. Mine were unguided so the belt would always jump teeth on the alternator.

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                  • #10
                    What about adding a small idler pulley somewhere near where your AC was? That could help get around some belt sizes and still help you follow the same routing to get the belt around the tensioner?

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                    • #11
                      Originally posted by Lightspeed View Post
                      What about adding a small idler pulley somewhere near where your AC was? That could help get around some belt sizes and still help you follow the same routing to get the belt around the tensioner?
                      Yeah, they make a ribbed pulley to go where the idler pulley goes and it’s just like they came from the factory, bypassing it just makes It easier to run turbo pipes. I’ll find out soon when I install my turbo.
                      08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                      96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

                      Comment


                      • #12
                        Originally posted by v6buick View Post

                        I tried that but it still slung belts. I had the biggest pulley I could install without running into water pump clearance issues.
                        I have my belt routed different than your belt is. I tried to route my belt that way and came to the same result that I couldn't fit a larger pulley that's why I routed it this way​ image widuget
                        Attached Files

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                        • #13
                          Originally posted by RedneckinaRAV4 View Post

                          I have my belt routed different than your belt is. I tried to route my belt that way and came to the same result that I couldn't fit a larger pulley that's why I routed it this way​ image widuget
                          Your image didn't show up. Maybe try using the upload attachment button if you didn't try that. If you did maybe just try again and it should work.

                          2002 SOM Z28 Camaro - 12.9 @ 104 mph
                          1996 3800 Camaro - 13.43 @ 100.77 mph


                          Project Cars | How To Guides | Scratch Repair | Synthetic Oil

                          Comment


                          • #14
                            Almost forgot this post going to try v6buicks method. Will post pics when done.
                            08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                            96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

                            Comment


                            • #15
                              ​ Got the ribbed tensioner pulley and belt on , removed the idler pulley. Works great, will remove the A/C tomorrow or this weekend.
                              08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
                              96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

                              Comment

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