2005 Corolla Serpentine tensioner Bolt - Toyota Nation Forum : Toyota Car and Truck Forums

BOBRT10 · 08-21-2011, 10:42 AM

I want to change my serpentine belt, but Toyota changed the bolt from 19mm to some sort of Hex, Spline, or torx bolt. Does any one know this bolt and the size?. Everybody on the forum keeps saying 19mm, even when somebody post a picture of the new bolt. This is the original tensioner.
The car was delivered late 2005 to the dealer, even the Haynes manual shows the 19mm bolt. They must have changed it late in the model year.
I would really appreciate some help. Thanks, BOB

invader · 08-21-2011, 10:54 AM

The 17 mm bolt holds the tensioner, and the 19 mm hex above it is used to release tension to replace the belt.

BOBRT10 · 08-21-2011, 11:10 AM

Thanks for responding, But the 17mm bolt is to remove the tensioner , I just want to relive the tension so i can put on a new belt there is no 19mm bolt, the 17mm is the biggest bolt on the tensioner. The bolt on the pully is spline, torx, or hex. BOB

invader · 08-21-2011, 11:19 AM

The 19 mm tension release hex head is just above the 17 mm bolt that holds the tensioner

BOBRT10 · 08-21-2011, 11:36 AM

Thank you very much, I was looking at the bolt on the pully I did not notice the fake bolt above the 17mm bolt. It took me a few minutes to check it, had to wait till the rain stopped. I owe you big time" INVADER" thanks for taking time to post PICS. BOB

BOBRT10 · 08-21-2011, 01:17 PM

Update! The belt is on, no problems, again thanks to "Invader". It was easy to see that fake bolt once I put my eye glasses on! Thanks Again, BOB

blackLE · 08-21-2011, 07:40 PM

Pics are worth a thousand words sometimes!!!

I just changed my serpentine belt last week.

bennor · 08-22-2011, 08:22 AM

FYI. In the stickied/tacked Official 9th Gen Corolla FAQ - List of DIYs thread there is a DIY thread on how to change the serpentine belt. In that thread there are various comments from users (including myself) on changing the belt and some things to watch out for when making the change.

In that thread on the first page there is a picture (below) which shows the 'fake bolt' location and how the belt should be routed. It may help others to print out this picture and have it on hand as you change the belt.