Alternator, A.C. Compressor and Plugs

[axel]

Forgive the ignorance but on a 2000 2.5L engine, are the alternator and A/C compressor run off the timing belt?

I didn't notice individual belts for the Alt. or a/c comp.

 

Is it worthwhile going with platinum spark plugs or not?

Are non platinum NKG plugs good for 30k miles?

[nipper]

Timing belt is under the plastic covers and runs the water pump. The ac/alt/ps are run off an accessory drive belt. That one you can see easily.

 

 

 

nipper

[porcupine73]

Hi, I too have an '00 2.5L. The a/c compressor has it's own drive belt, and the power steering and alternator share a separate drive belt. Both these accessory drive belts are run off the crank pulley. (The timing belt is something different).

 

For plugs, the platinum, iridium, etc can give you a longer interval between plug changes. However for performance in that engine even the normal NGK v-power copper plugs do just fine.

 

[axel]

Thanks, Porcupine, or the detailed info.

At what mileage intervals is it good to replace the accessory belts. They don't last indefinitely, do they?( I think that Subaru says to inspect them at various service intervals, nothing about replacing them).

Is accessing the pulleys and replacing the belts very difficult?

[porcupine73]

hehe right they don't last forever. I believe the itnerval is the same as the timing belt, 105k miles or 105 months. Replacing those belts is pretty easy but you need the right sockets and such for the tensioner bolts, plus if you have rusty tensioner bolts you might need to get penetrating oil on for a few days before. Also don't overtighten especially the belt with the p/s or it will start squeaking within a day or two.

[nipper]

Replace them with the timing belt.

 

nipper