Removing and Replacing your BRZ/FR-S Accessory Belt
 

GrimmSpeed DIY Guide Series
http://www.grimmspeed.com/content/im...iy/figure1.jpg

Tips:

Procedure:

1. Begin by following our intake removal guide to expose the belt.

http://www.grimmspeed.com/content/im...iy/figure2.jpg

2. Next, remove the black covers on the alternator and power steering pump.

http://www.grimmspeed.com/content/im...iy/figure3.jpg

http://www.grimmspeed.com/content/im...iy/figure4.jpg

3. Use your 3/8in drive 12mm socket and wrench on the tensioner pulley as shown below. This will release tension on the belt and you should be able to slip it off of the idler pulley with no issues. After the belt is removed, you can slowly bring the tensioner back.

http://www.grimmspeed.com/content/im...iy/figure5.jpg

http://www.grimmspeed.com/content/im...iy/figure6.jpg

4. Easy as that. Re installation is just the reverse. Remember to double check that the belt is properly routed and seated in each pulley before starting the car.

Added to the DIY Directory:
http://www.ft86club.com/forums/showthread.php?t=7365

FYI to anyone trying to attempt this, pulley is pushed down as if you are trying to tighten the pulley to remove the tension not the way shown on the picture.

To clarify, you're saying the tensioner pulley is loosened with a clockwise (righty tighty) effort with a socket wrench? Weird but thanks for the tip.

It's not weird; the reverse thread prevents it from loosening on its own.

You do not actually loosen the pulley, it pivots out of the way and the pivot point is where the bracket mounts to the engine (don't let go once you release the tension, the bracket is spring loaded.) Basically put a wrench on the pulley bolt like in the picture above, have the wrench orientated just like in the picture and push down towards the bottom of the car. It should be obvious once you start to apply pressure. It does not require much force but be careful because again it is spring loaded so it could snap back and fling the wrench in your face.


EDIT: Pictures have been fixed thanks to Matt from GrimmSpeed. Info above is correct!

Thanks for catching that! I've updated the image to show the correct direction.
Yep.
:happy0180:

Matt

You don't even need to remove the covers for the alternator and a/c compressor pullies. :)

I may have inadvertently over-tightened the v-belt tensioner when releasing belt pressure. Does anyone have the proper torque value for the tensioner pulley bolt?

Also, to be clear, this is reverse-threaded, correct?

Thanks!

I was just reading thru this and I think you made a mistake .. I believe the other black cover is for the a/c compressor ..Please correct me if I'm wrong

Thanks

Just did it. It's a 14 mm wrench and socket for the tensioner not a 12 mm.

Any chance anyone knows the part number of the tensioner
pulley bolt? I've tried googling it but all I can find is the idler pulley bolt. I sheared mine off.

I would recommend reaching out to Toyota/Subaru dealership, they should know the part number...