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Old 01-29-2017, 07:24 PM   #1
J-Pipes
 
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Harmonic balancer failure

Had to go rescue my neighbor this evening, his balancer broke. When he called, I was thinking the the rubber ring had failed and the balancer came apart. When I got there, the center "hub" actually broke out of it. Just wondering if anyone has ever seen this type of failure before? I don't know the full specs of the truck, basically that it's a p-pump 24v, 62mm turbo. He was on his way back from helping a friend move, so he had an empty gooseneck on it, driving on the freeway. Only other relevant detail I can think of, is that he is definitely not afraid to lean on the truck.Click the image to open in full size.Click the image to open in full size.Click the image to open in full size.

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Old 01-30-2017, 04:19 PM   #2
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Anything?

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2000 Dodge ext cab short bed, 6spd.
 
Old 01-30-2017, 08:28 PM   #3
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I've had a couple of VP trucks that we caught before they broke. They were cracked through and around the bolt holes but not cracked all the way around yet. These were both pretty hot VP trucks with redlines. I just figured it was the extra rpms and wear in the old balancers that caused the centers to crack. I've seen some outers come off and they either exit without creating much damage, or take lots of stuff on the way out. Haha
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Old 01-31-2017, 05:16 AM   #4
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Interesting, he's definitely turned more rpms with the p-pump. What's the recommended replacement? In another thread, can't remember which, there was talk of big builders going away from the aftermarket ones because the bolts keep coming loose, and using stock 6.7 balancers. If that's the route to go, does it require any other changes?

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2000 Dodge ext cab short bed, 6spd.
 
Old 01-31-2017, 07:09 AM   #5
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Never had a problem with my Fluidampner coming loose at 5000+ rpm
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Old 01-31-2017, 07:35 AM   #6
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errrrr!!! Never seen that before ever. Was this a takeout engine?
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Old 01-31-2017, 08:05 AM   #7
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Quote:
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errrrr!!! Never seen that before ever. Was this a takeout engine?
Believe it's factory engine, around 180k miles I think, don't know how long it's been p-pumped. Now I'm thinking I might want to check my truck, I'm at 193k!

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2000 Dodge ext cab short bed, 6spd.
 
Old 01-31-2017, 09:11 AM   #8
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Quote:
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Never had a problem with my Fluidampner coming loose at 5000+ rpm
x2, and it takes a lot of rpm drone away in my truck.

My last car had knock sensors and it looked like I was getting pre-detonation until I swapped to a fluidampr. I was able to pull ~8-10 more degrees of timing at higher rpms and that was the only change.
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Old 01-31-2017, 10:11 AM   #9
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The factory ones were different sizes based on engine hp. If he goes with a OEM replacement, he should get the biggest one for a modded engine. Pesrsonally, I run a Fluidampr like the others. Works good, well worth the bucks.
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Old 01-31-2017, 11:20 AM   #10
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Ok, I know for now he just got oem to get it back on the road.

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Old 01-31-2017, 11:22 AM   #11
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Ok, I know for now he just got oem to get it back on the road.
Painting things white makes it easier to see when they start cracking since dirt/oil is typically black.
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