What is this?

[Alex 110]

Can't find any reference to this on RAVE, and it seems to have no function. (hope the pictures work) if not, its 2 steel discs about 70mm diameter and 15-20mm thick attached to one side of the rear diff nose with a cable leading to the watts linkage centre pivot bolt. Hope someone can demystify it for me. :eek:

[justinc]

that is a vibration damper.

jc

[Slunnie]

Mine snapped off. Can't say I noticed any difference.

[Marmoset]

I can't say I've ever noticed one of those on my rear diff, wonder how much vibration it old get I'd of? I do get one about 80km/h, but I doubt that our be damped by that.....

[camel_landy]

Yep, harmonic balancer.

:D

M

[Tombie]

Yep, harmonic balancer.

:D

M

You mean Harmonic Dampener :cool:

[justinc]

The idea I believe was to create a vibration of a known frequency and then cancel it out by using a certain weight added in a certain place to cancel the known harmonic vibration, thereby restoring the equilibrium of the system...

Certainly seems to not work on some D1's especially the early 1994/5 Tdi manuls, some of which I have driven seem to have more intrusive NVH than my Isuzu 110:p


JC