failing alternator or belt?

azureblue · Post by **azureblue** » 15 Dec 2022, 09:23

Alternator arrived -- I have a tensioner that has what looks like a 14MM bolt on the pulley. I can't see the torx fitting - maybe I have a different type? I saw a vid where the guy used a socket on the pulley bolt to release tension, but is this OK, and how would I get the belt back on? Maybe there is a T45... I can't find a picture of the type tensioner I have.

Meanwhile, the Amazon delivery guy ran the truck off my driveway, and is stuck, so I can't go anywhere until he gets towed out..

Post by **vtl** » 15 Dec 2022, 09:33

T45 is on casting. You can use a socket/wrench on the hex bolt as well.

azureblue · Post by **azureblue** » 15 Dec 2022, 09:38

Thanks - Where is the t45 hole on the casting? I can't see it.. I'll use the 14 to loosen the tension but I'm concerned with loosening the bolt when I have to pull the tension back to replace the belt

Post by **vtl** » 15 Dec 2022, 09:43

azureblue wrote: 15 Dec 2022, 09:38 Thanks - Where is the t45 hole on the casting? I can't see it.. I'll use the 14 to loosen the tension but I'm concerned with loosening the bolt when I have to pull the tension back to replace the belt

You actually release the tension by turning the bolt CW, so it is tightening the bolt, not loosening.

azureblue · Post by **azureblue** » 15 Dec 2022, 09:57

Thanks but the picture is not what I have. Mine has a 14MM bolt through the middle of the pulley, and this kind of looks like a T60

Post by **vtl** » 15 Dec 2022, 09:58

It's an older style tensioner. I had one like that on a 2002 V70. Use 14MM bolt to slacken the tensioner.

azureblue · Post by **azureblue** » 15 Dec 2022, 10:02

Thanks - Will it be Ok to use it to re leave tension to put the belt back on?

Post by **vtl** » 15 Dec 2022, 10:03

azureblue wrote: 15 Dec 2022, 10:02 Thanks - Will it be Ok to use it to re leave tension to put the belt back on?

It is in fact designed that way.

azureblue · Post by **azureblue** » 15 Dec 2022, 10:10

Much thanks to all. Looking for my drain pan, and getting ready to dive in..

Post by **vtl** » 15 Dec 2022, 10:13

You don't need to drain anything for aux belt change...