Harmonic vibration
05-11-2012, 03:20 PM
#31
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The bolts are about 1/4 inch longer, I would not use the old bolts.
I had to lower the fan but did not take it out after I got it loose to get the pulley out. I had replaced my fan clutch last year and used the tools from AutoZone. I flared the 36mm wrench and did not get the fan loose, had to use a hammer and chisel.
I had to lower the fan but did not take it out after I got it loose to get the pulley out. I had replaced my fan clutch last year and used the tools from AutoZone. I flared the 36mm wrench and did not get the fan loose, had to use a hammer and chisel.
. Is the reason I'm changing the 5.9 fan pulley to compensate for a larger diameter of the 6.7 damper? As I'm writing this, I'm feeling like "why am I overthinking this, just swap the parts"!
05-11-2012, 05:31 PM
#33
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The reason you are changing the fan pulley is the diameter of the fluid damper is larger by about 3/4 inch. The fan pulley is the same as the old one but it has an offset that allows it to clear the damper. Look at both pulleys and you can see the differance.
05-11-2012, 05:51 PM
#34
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06-08-2012, 11:01 AM
#37
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Update,
Ok, I put 3k miles on the truck the past two weeks with 3/4 of those pulling the 5ver. The Fluidampr did suppress the vibrations very well. I can now (un)comfortably say the vibrations I have been trying to find are caused by the motor.
Ok, I put 3k miles on the truck the past two weeks with 3/4 of those pulling the 5ver. The Fluidampr did suppress the vibrations very well. I can now (un)comfortably say the vibrations I have been trying to find are caused by the motor.
09-12-2012, 07:51 PM
#40
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09-13-2012, 05:21 AM
#41
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Do yourself a favor and drop the driveshaft center bearing mount one inch. It makes a huge difference. You just have to make a spacer. The deflection angle is too large. I went through 2 sets of "U" joints before I did mine. Remember, the larger the deflection angle,the greater the velocity modulation from the "U" joint. Straightening mine out really increased smoothness.
09-16-2013, 04:07 PM
#42
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Thread Starter
Update on this vibration,
It has now been awhile since I first noticed this problem and it is now to the point where I can feel it empty.
Always between 1500 and 1900 rpm in second, third and OD most prominent with the torque converter locked up as then the motor and transmission are physically locked together.
Does anyone know of a tool that can sense vibrations and can be remotely monitored? Or some way to determine the source of a harmonic vibration?
It has now been awhile since I first noticed this problem and it is now to the point where I can feel it empty.
Always between 1500 and 1900 rpm in second, third and OD most prominent with the torque converter locked up as then the motor and transmission are physically locked together.
Does anyone know of a tool that can sense vibrations and can be remotely monitored? Or some way to determine the source of a harmonic vibration?
12-24-2015, 09:26 PM
#43
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Vibration
Update on this vibration,
It has now been awhile since I first noticed this problem and it is now to the point where I can feel it empty.
Always between 1500 and 1900 rpm in second, third and OD most prominent with the torque converter locked up as then the motor and transmission are physically locked together.
Does anyone know of a tool that can sense vibrations and can be remotely monitored? Or some way to determine the source of a harmonic vibration?
It has now been awhile since I first noticed this problem and it is now to the point where I can feel it empty.
Always between 1500 and 1900 rpm in second, third and OD most prominent with the torque converter locked up as then the motor and transmission are physically locked together.
Does anyone know of a tool that can sense vibrations and can be remotely monitored? Or some way to determine the source of a harmonic vibration?
04-07-2018, 06:03 PM
#44
I have an 06 with identical problem. Pulling 6k pound trailer, up the slightest hill, I have vibration. I saw some type of silicone dripping from front of engine. I didn’t think the 06 had a fluid dampener. I thought it was rubber. My truck is in the shop that replaced the transmission with a BD last year for a transmission leak. He seems to think the issue is the harmonic balancer. I’ll know next week when he works on it.
05-08-2018, 11:00 PM
#45
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I have an 06 with identical problem. Pulling 6k pound trailer, up the slightest hill, I have vibration. I saw some type of silicone dripping from front of engine. I didn’t think the 06 had a fluid dampener. I thought it was rubber. My truck is in the shop that replaced the transmission with a BD last year for a transmission leak. He seems to think the issue is the harmonic balancer. I’ll know next week when he works on it.