Tonight I tried to change my alternator and power steering belt, which unfortunately failed because Repco gave me the wrong sized belt. GRRR.
I decided to make a quick 'how to' though, as I seem to remember an old 'how to' on the old site which has been lost.
You will need:
An EJ20TT engine.
10mm socket
12mm socket
A 5PK887 belt - Repco gave me an 875 which is just slightly too small. My belt actually died the other day and I had to temporarily use a 5PK900, which is too big. The belt will work, but there is alot of screeching as it slips.
Winger Subaru sold me the 5PK887 for $49.50.
Step 1: Remove the plastic cover.
Step 2: Remove bolt #1
Step 3: Loosen bolt #2
Step 4: The black metal bracing, #3, can now be removed. In the next picture you'll see I simply rotated this out of the way, it was only afterward that I saw that bolt #2 fits through a notch in this bar, rather than an actual hole.
Step 5: Loosen bolt #4
Step 6: Loosen bolt #5 all the way, as you loosen this bolt your alternator will lower. If it doesn't, press down on the alternator, #6.
You will now have your alternator lowered all the way, the drive belt will be loose and you can simply remove it and fit the replacement. Repeat the previous steps in reverse order.
Yay, you're done. Such an easy job.