Collar on Drive Shaft?
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8th Gear
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Collar on Drive Shaft?
Hey guys. I got a pure stock AFAIK 2001 F-250 7.3 liter. I have had it for about 6 years now. This morning a piece of rubber came off my driveshaft while I was leaving for work. I have no idea what it is or how to explain it. I did, however, make a video about it. Can you tell me what this is and what it is for and why I need it?
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It's a drive shaft harmonic "balancer" or damper.
Confounding people for years:
https://www.ford-trucks.com/forums/8...-balancer.html
IMO have it replaced. You will never notice the vibrations it dampens until they take out a pinion bearing. Or maybe you will when you notice your mirrors are fuzzy at certain speeds.
Meanwhile I'd see if I could get that ring off there until proper reinstallation can be done.
Confounding people for years:
https://www.ford-trucks.com/forums/8...-balancer.html
IMO have it replaced. You will never notice the vibrations it dampens until they take out a pinion bearing. Or maybe you will when you notice your mirrors are fuzzy at certain speeds.
Meanwhile I'd see if I could get that ring off there until proper reinstallation can be done.
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8th Gear
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Actually. Is there a way I can glue this all back together? It seems like adhesive or pressure was the only thing holding it on to begin with. Is the ring offset to compensate for variations in the driveshaft weight? Would the driveshaft be balanced according to the variations in the ring's weight? How exactly does this function?
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Actually. Is there a way I can glue this all back together? It seems like adhesive or pressure was the only thing holding it on to begin with. Is the ring offset to compensate for variations in the driveshaft weight? Would the driveshaft be balanced according to the variations in the ring's weight? How exactly does this function?
You can have your driveshaft balanced all you want, and that's a good thing. This damper is not primarily for driveshaft balance. It is for harmonic vibrations. Those torsional impulses from the engine that find their way through the drivetrain. And other vibrations that in harmony with the frequencies in your driveshaft can mount up to create larger vibrations.
Harmonic--think harmony. A great thing for the choir, not so good when it's different components finding a common frequency to buzz to.
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8th Gear
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While it was in fact held together by some combination of pressure and friction, you can not glue it back together. It will come apart in short order.
You can have your driveshaft balanced all you want, and that's a good thing. This damper is not primarily for driveshaft balance. It is for harmonic vibrations. Those torsional impulses from the engine that find their way through the drivetrain. And other vibrations that in harmony with the frequencies in your driveshaft can mount up to create larger vibrations.
Harmonic--thing harmony. A great thing for the choir, not so good when it's different components finding a common frequency to buzz to.
You can have your driveshaft balanced all you want, and that's a good thing. This damper is not primarily for driveshaft balance. It is for harmonic vibrations. Those torsional impulses from the engine that find their way through the drivetrain. And other vibrations that in harmony with the frequencies in your driveshaft can mount up to create larger vibrations.
Harmonic--thing harmony. A great thing for the choir, not so good when it's different components finding a common frequency to buzz to.
I understand it is on there for a reason and I really want to keep my truck for another 800k miles and get to a million. I am going to cut it off so I can at least drive it and start setting aside for a new drive line next month. I guess my truck gets the most expensive gift this Christmas.
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Yes, cut it off and inspect the shaft for any dents or dings however small around where it has been clanking away.
You can run without it, and you may never notice it. "May". For the 800k run, it probably should be replaced.
Funny you ran into "shops" that do driveline repair and they've never dealt with one before. They are a "thing" with Jeep, Dodge and Cummins forums, and that was the first page.
Good luck!
You can run without it, and you may never notice it. "May". For the 800k run, it probably should be replaced.
Funny you ran into "shops" that do driveline repair and they've never dealt with one before. They are a "thing" with Jeep, Dodge and Cummins forums, and that was the first page.
Good luck!
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Thread Starter
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8th Gear
Joined: Oct 2019
Posts: 8
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Yes, cut it off and inspect the shaft for any dents or dings however small around where it has been clanking away.
You can run without it, and you may never notice it. "May". For the 800k run, it probably should be replaced.
Funny you ran into "shops" that do driveline repair and they've never dealt with one before. They are a "thing" with Jeep, Dodge and Cummins forums, and that was the first page.
Good luck!
You can run without it, and you may never notice it. "May". For the 800k run, it probably should be replaced.
Funny you ran into "shops" that do driveline repair and they've never dealt with one before. They are a "thing" with Jeep, Dodge and Cummins forums, and that was the first page.
Good luck!
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