Terrano Cost Cutting & Clutch Damper

[jims-terrano]

Have been thinking about this on and off over the last week since my MOT. I've thought for some time that the damper pipe must have been fitted for a reason. After removing mine I noticed a noise and vibration from drivers footwell area.
As Rustic pointed out today in a post that cost saving seemed to be introduced to the later Terranos. Such things as the grease nipples on UJ's for instance or the auto locking hubs.

So if and it is an if Nissan decided to cut costs why on earth did they leave the clutch damper pipe?

Does this actually mean that this pipe is actually required?

 

[rustic]

Have been thinking about this on and off over the last week since my MOT. I've thought for some time that the damper pipe must have been fitted for a reason. After removing mine I noticed a noise and vibration from drivers footwell area.
As Rustic pointed out today in a post that cost saving seemed to be introduced to the later Terranos. Such things as the grease nipples on UJ's for instance or the auto locking hubs.

So if and it is an if Nissan decided to cut costs why on earth did they leave the clutch damper pipe?

Does this actually mean that this pipe is actually required?

I think there was a vibration issue on some clutches, so rather than retrofit after a recall, they probably decided to fit to all, so no comeback, and no reliability issues flagged.
Some members on here have removed them, mostly due to leaks over the rear axle, and have not noticed any issues. Then..... some have noticed an issue...
Luck of the draw I guess.:nenau

 

[bry]

Dont need em..

 

[solarman216]

I can see no point whatsoever for the damper pipe, fluid is not compressible so a pipe full of fluid cannot serve as a damper, now if it had some air in it then yes it would and if it was designed to be full of air what would be the point of the bleed nipple at the end? you cannot bleed air in, Rick

 

[rayf3262]

A bit of googling offers this possible explanation:

Hydraulic T-pipe Damper
The T-pipe is a closed length of pipe that damps odd multiples of quarter wave, so there are many operating bands. The damping capacity is good, but the operating band is quite narrow. The length of the T-pipe becomes long at low frequencies. A larger diameter of the T-pipe gives rise to a larger operating band (usually diameter is same as nominal size of the main line).

A T-pipe (T-filter, band-pass filter) is a side-branch pipe that is closed off at the end. The pulsating pressure at a certain frequency is damped if the length of the T-pipe is
Length of T-pipe = [FONT=Helvetica, Verdana, Arial]λ / [/FONT]4
where λ is the wavelength to be damped.

 

[rustic]

This is an interesting post as to why you have a damper...

http://garage.projectraine.com/content_guides/240_clutchdamper/clutchdamper.html

 

[jims-terrano]

I just find it interesting that if Nissan were cost cutting that they left this pipe as a standard fitment.

I have to say that I totally agree that it is not needed to make the clutch work. However from the experience with my older truck I would probably try and keep it on the newer truck. As Rustic says some encountered a vibration without it, my old truck has a vibration that started the very same day as I removed the damper.

 

[davenclaire]

done this one before

i removed mine and had the clutch growl noise when letting the clutch pedal up and vibrations, i made a new pipe and refitted it the growl and vibration went

 

[makeitfit]

I think there was mischievous young designer working for Nissan back in the day. He upset the big wigs and was reprimanded. He then took out his revenge on us all be designing in superfluous terrano add ons like the clutch damper, mini filter and the power steering pipe across the front :lol
Binned mine and all's well

 

[elty001]

Nissan cut costs that much on mine that they didn't even fit a clutch:lol
Oh yeah its an auto.
My clutch damper went on my old tdi while I was driving back from a camping holiday. Fully loaded truck and trailer.
Drove it to a filling station and proceeded to remove and blank off the damper with a screw and the finger from a rubber glove.
Bought some fluid from the garage,bled it and drove home.
Was a bit of a growl from the clutch but didn't feel any difference (apart from it working again :lol)
Blanked it off properly when we got home and never looked back.

 

[Sweety]

The good old damper pipe debate:lol:augie it simple T2's don't need a damper pipe to run well but you may gain some vibration growling from the clutch or make up a new damper pipe some how:nenau both options work well take your pick:thumb2:augie:augie

 

[briggie]

ah the damper pipe debate ....... its to stop the rotax converter oscillating at the double hinged end piece frequency :augie