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Old 02-06-2013, 04:58 AM
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Automatic Belt Tensioner

Just finished my weekend job/mod replaced water pump, new 203* thermostat ( from diesel site very happy), upper, lower, from lower to resivor hoses along with zerex coolant and, and ford SCA. I came to notice that my automatic belt tensioner is **** eyed. i ordered a napa automatic tensioner and it does not seat behind pulley to the left of it. Why is this did anyone else have this issue? I did put my old and napa tensioner next to each other the napa tensioners depth is about a inch and half deeper than the original.
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Old 02-06-2013, 05:34 AM
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What brand and model of tensioner? Could be they sent you the wrong one.

You might want to consider converting to the SuperDuty tensioner. It replaces the original tensioner and the idler next to it. Requires minor mod to the bracket. Here's a TSB on the topic: http://www.powerstroke.org/forum/att...-tensioner.pdf
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Old 02-06-2013, 06:33 AM
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NAPA AUTO PARTS

As I said the only one from Napa.
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Old 02-06-2013, 08:44 AM
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Hmm, that's the right part number (38119, shared part # with Gates and AC/Delco). I'm running the Gates version of that part in the ECLB; went in just fine. The arm is longer than the OEM, but the pulley lines up just right. Any chance you can take a pic of the new tensioner as it sits on the bracket, and illustrate the fitment issue?
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Old 02-06-2013, 11:10 AM
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Where the spring is in the automatic tensioner the idler does not clear. You can not physicaly put the idler because the tensioner is in the way. I sat eith the napa associate for about 2 hours, showed him on the truck, took everything apart in their parking lot and placed their part in my truck and showed him the issue. He contiued to look up on his system and other parts companies and all led to 38119. He was just puzzled as I was. the automatic tensioner does not sit deep enough to allow the idler pulley to be put in place
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Old 02-06-2013, 11:44 AM
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Possibly the wrong part got placed in the right box?
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Old 02-06-2013, 11:52 AM
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Quote:
Originally Posted by creekfreak View Post
Possibly the wrong part got placed in the right box?
That I could believe
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Old 02-07-2013, 03:46 AM
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So yesterday I went to Ford to purchase a Ford tensioner come to find out that it didn't fit either with the idler. I took some pictures to compare the Ford and Napa tensioner.
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Old 02-07-2013, 03:49 AM
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Here is the comparison.
Attached Thumbnails
Automatic Belt Tensioner-2013-02-07-06.36.59.jpg  
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  #10  
Old 02-07-2013, 07:25 AM
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Is that Ford one the new one or the old one? It'd be illustrative to compare all three.

Then again, I can't help but think that the SD tensioner mod would make this whole problem go away.
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