Replacing tensioner pulley

[Kayden]

Not much chance that the belt stretched that much.
U most likely got the belt not running around the pullies correctly.
When you were getting the belt on over the tensioner how far did you have to pull the tensioner back to get it over the pulley? It should be rather far. Belts don't stretch that much.

I pulled the tensioner all the way to get the belt on and the spring seemed really strong to me.

I followed the diagram on placing the belt back on, can the belt "not" sit on the pulleys right.I would imagine the belt grooves have to line up with the lines on the pulleys? I mean I can't imagine that it'd be possible for them not to line uprices "or" is this possible?

BTW any idea on torque specs for alternator?

 

[mliebal]

Yes grooves have to line up. Being off the lined pulley could cause slippage.
I put my belt on with the fan off the vehicle. The fan pulley was on, just the fan was not.
Then I could see what was going on.
Follow the belt diag on this
http://www.toyota-4runner.org/4th-g...ging-serpentine-belts-v6-1gr-fe-4runners.html

 

[nasdamus]

Question for those that have done this. Is the bottom alternator bolt the same as the top one (length etc.)? I had no issues getting the top alternator bolt out but the bottom one is almost rounded and i need to buy a replacement one before i get that sucker out.

Also, i tried just replacing the old pulley with the new one off the assembly but it didn't really fix my issue, which was noise/almost rattling (video below).

https://www.youtube.com/watch?v=WBDIMhiwoUc

 

[Brutalguyracing]

did you check the tension on the tensioner?
as is there tension on it?

 

[Kayden]

Question for those that have done this. Is the bottom alternator bolt the same as the top one (length etc.)? I had no issues getting the top alternator bolt out but the bottom one is almost rounded and i need to buy a replacement one before i get that sucker out.

Also, i tried just replacing the old pulley with the new one off the assembly but it didn't really fix my issue, which was noise/almost rattling (video below).

https://www.youtube.com/watch?v=WBDIMhiwoUc

The bolts on the alternator top and bottom are both the same size and length. I had to use a breaker bar to get both loose. Well actually I use the belt tensioner tool to loosen the bolts up.

I removed my pulley from the new tensioner as well and used it on the old tensioner.

 

[Kayden]

So got everything back together and my vehicle stays started but idle sounds not quite right. I can now turn the ac on/off with no issues but the idle sounds a little funny or off. I checked over the belt a couple times and everything looks good. What should my idle be in park? My idle in park is at a quarter below 1. When I shift into drive it drops a little but not much. Ideas?

 

[Kayden]

Finally got everything running only by cleaning the throttle body and mass air flow sensor. Strange knowing this is nothing I was working with but now everything is running much much smoothly. I do have a small rattling or turning kind of sound and I'm thinking it might be one of the other two pulleys. But the engine is much smother, quite and overall great besides the slight rattle turning sound.

 

[Kayden]

I'm finally a 110% fixed. Turns out the pulley above the tensioner pulley on top next to the alternator was bad. I started my vehicle and watched the pulleys for about 30 minutes and noticed that very pulley wobbling. I drove to the parts store and picked that pulley up and installed it and now everything sounds beautiful like a brand new engine. I've never heard it sound so good before because I bought it used three years ago.

Thank you very much everyone for all your help, advice and time. :high5:

 

[Frank1]

Kinda late but are you talking about the idler pulley...the center one on top in the middle of the cam pulleys?