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Old 02-20-2018, 01:48 PM   #1
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The belt run works! Off the shelf belt too, 600K7.


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Old 02-22-2018, 12:28 PM   #2
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My belt routing is slightly different, coming up and over the tensioner after the crank pulley. I used a 6PK1220 belt.
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Old 02-22-2018, 01:45 PM   #3
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My belt routing is slightly different, coming up and over the tensioner after the crank pulley. I used a 6PK1220 belt.
6 rib? I had the hardest time finding short 7 rib belts, D&D has a few option.
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Old 02-24-2018, 07:05 PM   #4
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6 rib? I had the hardest time finding short 7 rib belts, D&D has a few option.
I'm pretty sure my pulleys are 6 rib. 2001 AUX engine code from an A8. If not, with the reduced stress on the belt from only running the alternator, I'm sure it will survive.
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Old 02-23-2018, 05:05 PM   #5
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Originally Posted by titaniumdave View Post
The belt run works! Off the shelf belt too, 600K7.
Not to poop on your parade, but are you sure that tensioner position is going to work?

When you reference the stock belt routing you'll see that the tensioner is the very last contact point on the belt before it goes back onto the crank pulley. This means the tensioner is at the point in the belt where the actual tension is the least, as the belt isn't actually driving any accessories. This leaves it to simply take up slack in the belt where the most slack would occur since the belt at that point is loosest as there is no tension from driving anything.

But when you route the belt as you have, the tensioner is now the first contact point on the belt, which means it is subject to the full tension resulting from driving all the accessories. This means that it will deflect and allow slack after the tensioner, allowing the accessories to slip on the subsequent pullies.

Does this make sense?

Sorry I was just staring at my own AWN V8 in the garage for the last hour so I had some time to think about exact this...
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Old 02-23-2018, 05:16 PM   #6
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Originally Posted by B6T View Post
Not to poop on your parade, but are you sure that tensioner position is going to work?

When you reference the stock belt routing you'll see that the tensioner is the very last contact point on the belt before it goes back onto the crank pulley. This means the tensioner is at the point in the belt where the actual tension is the least, as the belt isn't actually driving any accessories. This leaves it to simply take up slack in the belt where the most slack would occur since the belt at that point is loosest as there is no tension from driving anything.

But when you route the belt as you have, the tensioner is now the first contact point on the belt, which means it is subject to the full tension resulting from driving all the accessories. This means that it will deflect and allow slack after the tensioner, allowing the accessories to slip on the subsequent pullies.

Does this make sense?

Sorry I was just staring at my own AWN V8 in the garage for the last hour so I had some time to think about exact this...
This is the stock location, I just removed the AC and PS pump. I assume it works since this is how 1/2 million Audi's and VW have been doing it.
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