Guess what I get to do tomorrow?

Sir Sam · **Posted:** Mon Jul 25, 2011 10:52 pm

Powersteering pump seized and shredded the belt. Looks like I get to replace it tomorrow. Gonna be fun. Feels like I was just in there to replace the timing belt.

ebbnflow · **Posted:** Tue Jul 26, 2011 1:58 am

Bummer. How many miles do you have on it? How much does that part run? Just curious.

Sir Sam · **Posted:** Tue Jul 26, 2011 2:42 pm

Well the good news is that the pump was not seized, the tensioner when not under any tension moved so far that the pivot arm touched the PS pulley making it seem like it was locked down.

Late last night I decided I would try to make some headway on getting it pulled for today when I discovered that, ended up putting on the original belt(which I still had sitting around from the TB change a little while back) and am now running it. Put about 200 miles on it so far today and no problems, so I have no idea what caused the belt to come off, only thing I can think of is that it appears that the alternator pulley is locked up, maybe that somehow did it........

Also, it looks like its about a $200 part, owch.

BlackLibertyCRD · **Posted:** Wed Jul 27, 2011 1:36 am

When the tensioner did that on mine I replace it. I figure it wouldn't be long before it walked out again and hit the P/S pulley.

ibedonc · **Joined:** Mon Feb 12, 2007 2:40 pm **Posts:** 236

this is what happened on my 05

Sir Sam wrote:

Well the good news is that the pump was not seized, the tensioner when not under any tension moved so far that the pivot arm touched the PS pulley making it seem like it was locked down.

Late last night I decided I would try to make some headway on getting it pulled for today when I discovered that, ended up putting on the original belt(which I still had sitting around from the TB change a little while back) and am now running it. Put about 200 miles on it so far today and no problems, so I have no idea what caused the belt to come off, only thing I can think of is that it appears that the alternator pulley is locked up, maybe that somehow did it........

Also, it looks like its about a $200 part, owch.

papaindigo · **Posted:** Wed Jul 27, 2011 10:11 am

On a different vehicle when the tension got weak I throw a serp belt. No damage to belt but did have to replace tensioner.

geordi · **Posted:** Wed Jul 27, 2011 2:52 pm

I don't think the tensioner is weak, it sounds like when the belt was thrown the tensioner continued rotating past where it would have been with the belt (as if tensioning a longer belt) and hit the PS pulley. If the alternator clutch is locked, I would suggest trying Advance Auto - I got a complete lifetime alternator from them with the correct pulley for $150. Can't beat that.

You can check the parts availability for Advance and Autozone online, which saves a lot of time driving around. Cool that they have the inventory tied in now.

GreenDieselEngineering · **Joined:** Sun Jun 07, 2009 5:10 pm **Posts:** 1111

That is strange, it seems something is wrong with the tensioner to rotate that far, like a broken stop. On a spare engine with no belt on, the tensioner does not impact the p/s pump. Did the tensioner lose torque and slip off the alingnment pins on its backside?

BlackLibertyCRD · **Posted:** Wed Jul 27, 2011 3:51 pm

GreenDieselEngineering wrote:

That is strange, it seems something is wrong with the tensioner to rotate that far, like a broken stop. On a spare engine with no belt on, the tensioner does not impact the p/s pump. Did the tensioner lose torque and slip off the alingnment pins on its backside?

The two half's of the tensioner is pressed together with a bearing and spring. Now imagine the two half's spreading with the spring trying to escape and and the outer arm hitting the p/s pulley. It will also lose it's stop when spread so much. I replaced mine and I was lucky I didn't lose the belt. The belt was worn from rubbing the tensioner arm.

Sir Sam · **Posted:** Wed Jul 27, 2011 4:16 pm

geordi wrote:

I don't think the tensioner is weak, it sounds like when the belt was thrown the tensioner continued rotating past where it would have been with the belt (as if tensioning a longer belt) and hit the PS pulley. If the alternator clutch is locked, I would suggest trying Advance Auto - I got a complete lifetime alternator from them with the correct pulley for $150. Can't beat that.

You can check the parts availability for Advance and Autozone online, which saves a lot of time driving around. Cool that they have the inventory tied in now.

I've already got a lifetime warrantee from autozone on it, I have a spare alt here with a good pulley(that doesn't charge), I will probably swap that pulley on and then return the bad pulley/bad alt unit and have a nice new one sitting here on the shelf.

Sir Sam · **Posted:** Wed Jul 27, 2011 5:21 pm

Looks like the part number for the tensioner is 05072440AB

anyone remember what they paid for it?

BlackLibertyCRD · **Posted:** Wed Jul 27, 2011 8:30 pm

Mitchell 1 list dealer cost as $255 with part number 5072440AB. :5SHOTS:

I know I didn't pay much less then that. :dizzy:

Sir Sam · **Posted:** Wed Jul 27, 2011 9:52 pm

looks like 5072440AB works for looking up the price, little shy of $200, pricey little bugger. I think I'll try the alternator first and see if it chucks another one.

Sir Sam · **Posted:** Thu Jul 28, 2011 7:02 pm

Replaced the tensioner today, was seperating and coming apart. Pulled the one of off the MJ because it was easy to get to.

I also put on another belt as this one got chewed up again. I put on the belt from the MJ, its basically brand new but its been sitting around for years, so now I have a belt thats 5 years older than the Jeep, and is even a year older than the first CRD KJ. :-)r

Guess what I get to do tomorrow?

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