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gear rattle and fluid dampener

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Old 12-29-2005, 03:45 PM
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gear rattle and fluid dampener

has any one tried a fluid dampener to reduce gear rattle and been successfull?
or not successfull?
Old 12-29-2005, 04:14 PM
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By "fluid dampener" are you talking about a harmonic balancer/dampener that mounts on the front of the crankshaft?
Old 12-29-2005, 05:08 PM
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I have one and will have it installed in the next couple of days if weather and the new baby permits!!

Old 12-29-2005, 10:45 PM
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i have one and it didnt slow anything down... although i was breaking stock dampeners on a regular basis... so this one being one piece it should last...
Old 12-29-2005, 10:52 PM
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Originally Posted by forthcomingtwin
i have one and it didnt slow anything down... although i was breaking stock dampeners on a regular basis... so this one being one piece it should last...
How do you break stock dampeners on a regular basis???
Old 12-30-2005, 02:57 AM
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i have done 3 of them in now... this is my 4th--- HUGE tow bills 2 of the times... your guess is as good as mine.. the rubber just let go- and walked off of the crank.. losing all accessories...
Old 12-30-2005, 07:12 AM
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This thread has confused me .

Only one time I've heard of a stock balancer coming apart and this was on a 60's muscle car converted to a drag car. Big block spinning past 7000rpms.

I had no clue this could/would happen on a bombed Cummins.

About the "gear rattle" question..... that one still has me stumped. I have no clue what you guys are talking about.
Old 12-30-2005, 09:25 AM
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It's mostly a problem/issue for guys with 6 speeds and double disk clutches. With a double there is no room for spings in the hubs, so the disks are solid. At idle with the clutch engaged the input shaft of the tranny resonates with the torsional harmonics produced by the motor. It makes a gear clashing noise and the truck sounds about like a 24V. If you push the clutch in or rev the motor even 100 rpms the noise goes away. The hope was that the Fluidampr would damp out those harmonics, quiet the driveline down, and help save the gears a little.

John
Old 12-30-2005, 09:29 AM
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Learn something new everyday.... thanks

On the other hand, I think you guys are expecting alot out of a dampener. Fluid is a good piece, have used many on BBC's with no problems.. Goodluck
Old 01-01-2006, 03:08 PM
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still havent heard from anyone whether it actually helps or is just another thing to spend money on
Old 01-02-2006, 10:02 AM
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I'm waiting to hear the results also. I think it's very unlikely that a new Fluidamper mounted on the front of your crank is gonna help any noise coming from your clutch/trans. Just my opinion though...
Old 01-04-2006, 02:30 PM
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no one has tried one???
or
just dont want to comment???
Old 01-04-2006, 03:32 PM
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I have one on the truck as we speak.
Seems great so far.
I have a thread on it in the 3rd gen hi po forum.
Old 01-04-2006, 04:02 PM
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Someone posted on the other site , got 15 miles on it and did it becouse to the clutch/ gear noise and he said it works , when I would build engines having balanced was one of the 1st things I would do , so I'm watching this to see if someone is getting some value with a A.T.
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