[dmuirwatson]

I just replaced the timing belt at 102k on my wife's 2002 outback, along with the water pump, three timing belt pulleys and the tensioner. I think that I got everything right and was very careful, but it seems to be making this "churring" noise. I am pretty sure it didn't make it before. I started it without coolant for about 5 seconds and thought the churring was the water pump. i put 1.5 gal of coolant in and it is still making the noise. At this point i have run it for about 3 minutes. any ideas on what it is? here is a video of it. 2002 outback "churring" - YouTube thanks. -don-

 

[dmuirwatson]

Just took the drive belts off for the ac, power steering, etc. and the noise is not there.

 

[1 Lucky Texan]

probably air being sucked into the Power Steering pump. Look in the reservoir for bubbles/foam.

if you put new drive belts on, one may be dragging on the adjustment bolt head - some folks have found that.

 

[dmuirwatson]

looks like maybe the power steering pump or alternator won't be with us for a real long time, but oh well. put that belt on and tightened it enough, so that it squealed like crazy, then tightened it enough that it quit squealing and everything is all good now!

 

[1 Lucky Texan]

looks like maybe the power steering pump or alternator won't be with us for a real long time, but oh well. put that belt on and tightened it enough, so that it squealed like crazy, then tightened it enough that it quit squealing and everything is all good now!

the proper tension should about 1/3" (8-9mm) deflection with 22 lbs of force halfway between the crank and A/C or alt.

 

[urabn yeti]

If the noise is coming from your ps pump get some lubrizol. this stuff quieted down my pump a lot. I got my from the BMW dealer but you should be able to get it lots of other places. hope this helps