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Codes and pulleys and belts ... Oh My!
09-24-2014, 09:59 PM
Post: #1
Codes and pulleys and belts ... Oh My!
I mentioned the other day that I had shredded a belt while I was out driving around..fortunately I had a new HD green belt in the trunk and was able to be on my way. Well I also later that day threw a code - don't recall the exact one at the moment - that indicated that the air flow at throttle was high. This was the same code I had a couple years ago when my MAP sensor took a crap.

I decided to head over, swap out my MAP sensor with a spare I have and do some logging. The first interesting thing was the o-ring on the map sensor was cracked into two pieces. I swap the new sensor in and start her up. So far so good, except I'm hearing a squeaking sound from the front of the car...wtf?!?

It starts to go away so I hook up the trinity and turn on the logging function and do some laps in the complex where my garage is at. So far, so good....no squeaking. I decide to do some spirited runs to see if it will trip a code again. On the fourth lap, with a heavy dose of right foot....I let off of the throttle and the steering wheel gets heavy....shit here we go again. I shut the car off and coast back into my garage. I pop the hood and find the belt off the pulleys. However, every other time I have had a belt issue it has been shredded. This is what it looked like today:

[Image: ce50cf08e56a9bb83a23610c21e1932b_zps1272ba84.jpg]


All the pulleys spin freely with no catch.

Thoughts?

Mopar408
2009 Challenger SRT8 6Spd - Arrington 392 / 2.9 Whipple "FOR SALE"
2016 Charger SRT - Stock Daily Driver
2016 Challenger SRT Hellcat - Fun Car
1971 Plymouth Scamp - 435HP/402CI & a 5spd
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09-24-2014, 10:21 PM
Post: #2
RE: Codes and pulleys and belts ... Oh My!
Houston, we have a problem.........

David Gibson
2015 Best of Show Mopars at the Battleship
2009 Challenger R/T
2017 Dodge Ram 1500
2016 Jeep Grand Cherokee

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09-25-2014, 05:14 AM (This post was last modified: 09-25-2014 05:16 AM by TA340.)
Post: #3
RE: Codes and pulleys and belts ... Oh My!
Rob, 2 obvious things come to mind.

Alignment of all of the pulleys. Are all of the accessories with pulleys bolted down tight?

Is the tensioner working. Is it to tight or is the spring weak. I saw an interesting video on how those tensioners move under load.

That's an interesting black mark where the belt broke.

Gotta love these cars when they are modded. Laugh

[Image: motor%20cf6%201%20sig1_zps2hec8qzv.jpg]

Craig

Bookends FTW
1970 Challenger T/A 340 Six Pack
2009 Challenger SRT8 393 forged stroker with KB 2.8L SC
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09-25-2014, 05:20 AM (This post was last modified: 09-25-2014 05:21 AM by rdrdr90.)
Post: #4
Codes and pulleys and belts ... Oh My!
Tensioner is my thought, especially with a break like that. Looks like a slack/tight/slack/tight/slack/snap kinda thing.

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09-25-2014, 07:11 AM
Post: #5
RE: Codes and pulleys and belts ... Oh My!
Tensioner is certainly an easy, fairly inexpensive place to look.
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09-25-2014, 07:20 AM
Post: #6
RE: Codes and pulleys and belts ... Oh My!
I'm pretty sure the tensioner is good...it is one of those thumper racing ones and work really well. I'm wondering if in an effort to minimize belt slip if I went too small (tight) on the belt. I was just shocked last night at the kind of break on the belt.

Mopar408
2009 Challenger SRT8 6Spd - Arrington 392 / 2.9 Whipple "FOR SALE"
2016 Charger SRT - Stock Daily Driver
2016 Challenger SRT Hellcat - Fun Car
1971 Plymouth Scamp - 435HP/402CI & a 5spd
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09-25-2014, 07:29 AM
Post: #7
Codes and pulleys and belts ... Oh My!
You dang 6speeds are hell on belts. Where was the tensioner with the belt on? More than halfway through its range?


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2010 R/T Challenger 6.4 cam and Maggie @8lbs of boost. Some more stuff, but you get the idea. Installed by Texas House of Hemi. Tuned by the Hemituner!

[Image: 11SecondClub-5_zpshewte6gp.gif]

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2004 Jeep Grand Cherokee Limited
1970 Plymouth Barracuda (440, M5)....currently residing in Austin
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09-25-2014, 07:36 AM
Post: #8
RE: Codes and pulleys and belts ... Oh My!
no....just shy of middle of the range

Mopar408
2009 Challenger SRT8 6Spd - Arrington 392 / 2.9 Whipple "FOR SALE"
2016 Charger SRT - Stock Daily Driver
2016 Challenger SRT Hellcat - Fun Car
1971 Plymouth Scamp - 435HP/402CI & a 5spd
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09-25-2014, 07:41 AM (This post was last modified: 09-25-2014 07:42 AM by rdrdr90.)
Post: #9
Codes and pulleys and belts ... Oh My!
Then you're not only a drive train wrecker your belt wrecker it's just your special magic. LMAO


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They call me Pinque



2010 R/T Challenger 6.4 cam and Maggie @8lbs of boost. Some more stuff, but you get the idea. Installed by Texas House of Hemi. Tuned by the Hemituner!

[Image: 11SecondClub-5_zpshewte6gp.gif]

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2014 Dodge Durango Citadel
2004 Jeep Grand Cherokee Limited
1970 Plymouth Barracuda (440, M5)....currently residing in Austin
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09-25-2014, 07:52 AM
Post: #10
RE: Codes and pulleys and belts ... Oh My!
LMAO....well in the spirit of bringing laughter to you all.....As I was going through the engine compartment looking for the shredded remnants of the prior belt, I saw a piece hanging down low in the engine compartment so I decided to grap it from underneath the car. I got down and saw this:

[Image: d3ebac40f20b8abbfdaaac27e1b38ba8_zps2cb7406a.jpg]



well I just about shit myself...wtf is this????? what else did I fucking break?? Fortunately, it appears to be a full catch can that leaks LMAO

Mopar408
2009 Challenger SRT8 6Spd - Arrington 392 / 2.9 Whipple "FOR SALE"
2016 Charger SRT - Stock Daily Driver
2016 Challenger SRT Hellcat - Fun Car
1971 Plymouth Scamp - 435HP/402CI & a 5spd
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