*Disclaimer* - I am not liable for anything you do to your car. This is just a basic walkthrough.
I took the pics with my HTC EVO 4G from Sprint (love this phone). End of shameless plug lol.
Task: Change the engine belts
Time: About an hour and a half if you work slowly and take caution
- 10mm socket + maybe one extension to take off the splash shield and first part of the air intake system
- 12mm (I believe - may be 14mm) socket to loosen tensioner pulleys
- Both drive belts - I got the 60k maintenance kit from Sewell Infiniti (link) which had these in the kit. The part numbers for the belts are (according to google since Sewell doesn't list them on the kit information) 11920-AG900 (smaller belt) and 11720-4P10A (larger belt).
- Car jack and proper support (so you don't get crushed)
1) Jack the car up in a safe manner so you can get under it to do the work.
2) Remove the front underbody splash shield using the 10mm socket + extension (if need be):
You will be then left with this:
3) Remove the first part of the air intake system to give yourself some room from the top and to allow in more light (helped me - this might be an optional step)
4) Locate the tensioner pulley bolts
Loosen the bolts until the pulleys move all the way down and swap belts. To be honest with you, I couldn't get the main belt on no matter what I did and ended up stripping the bolt a little bit (the head part). I had the dealer do that belt for me. I got the smaller belt on fine. Not sure why I wasn't able to get the main one on because as far as I know the dealer used the belt I supplied them with (according to the paperwork).mgokool wrote:IlyaKol, great writeup! What you might wanna add though, before you loosen the tensioner bolts that move the pulley's up and down, you we're supposed to loosen the bolt in the center of the tensioner's FIRST. ((seen in your 1st pic under step #4 looking from the top-down!))
I ran into the same problem as you did, not being able to get the belt off, seemed like the tensioner won't move far enough downard to allow enough room...IT IS VERY IMPORTANT TO LOOSEN THAT BOLT ON EACH IDLER PULLEY *FIRST* BEFORE loosening the tensioner screws...otherwise you risk rounding up the tensioner bolt, stripping it or even snapping it!....its in the FSM and can easily be overlooked!
Anyone doing this, follow this step along with IlyaKol's original steps and you shouldn't have any problems!...
**loosen bolt on idler pulley -> loosen tensioner -> replace belts -> tighten tensioner -> tighten idler pulley bolt...**
HOPE THIS HELPS!
6) Tighten the belts till they have the same or slightly tighter inflection as before.
7) If you have chirping when the car is running, you have to tighten the belts more. Otherwise, you are done.