Quick Lansdowne Damper Question
- Thread starter pete.v
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Now sorted.
Brooking 850
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Hi Pete a bit late for the reply as John got back to you, I stamped each needle brass head with a C or a R to match the C & R on the yoke nuts when the needle was fully wound in, that way no confusion of what belonged where and also it gave a good indicated for turns when setting up, also one needle is longer than the other as I am sure John pointed out.
I put my compression cartridge on the left fork leg, rebound on the right, R for right !!!!
Regards Mike
I put my compression cartridge on the left fork leg, rebound on the right, R for right !!!!
Regards Mike
Here is the response from John to the question. It does matter which needle top goes to which cartridge.dennisgb said:
"Hi The Damper with 10 radial holes at the top is the "R" rebound side which as the longer needle, converse the 8 holes at the bottom is the compression side "C" and the shorter {15mm] needle fits that side.
John"
Brooking 850
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Pete, see my post , easy way to remember, right?
Regards Mike
Regards Mike
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L.A.B. said:
Thanks, LAB, for the quest of having me read through these 11 pages only to find no answer to my seemingly simple question. If it's there feel free to plug it and paste below. This is YOUR quest. If there was an answer to my question there, it was cryptic at best. Maybe I had that coming to me. Anyhow, some reiterations were refreshing.
Again, Is there a reason for putting rebound side on the disk brake side. Yes or No.
And, if I decide to put the disk on the left, should the rebound be on the left? Yes or No.
Please, no opinions or misdirection's. "Just the facts, ma'am"
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If the fork legs are too weak to resist normal road loads to resist deflection then Yep unequal damping or springs or fluid weight will cause some sense of bar twitching , but if fork legs are robust enough [as most are for ordinary use], then it should not matter if one leg had all the springs damper and fluid with the other empty. The unequal set up is so ancient and common even today its a total non issue to detect, though of course all structures deviate so some degree with unequal loads, but should not be detectable unless hi end measuring method used in a shop but for sure not on or off road. Clever designers/builders will use unequal spring stacks and unequal fluid weight-amounts to get more perfect set up and of course unequal dampening directions too for more room for better dampening device uncmpromised having to do both direction dampening on its own. If unequal brake placement and spring dampening causes trouble then the trouble lies in the cheap fork production and at risk of bending on normal road loads even if both perfectly the same. Roadholders are up to the task and i have not noticed anything unusual when all the fluid leaked out one leg, except more-faster fork dive to brake and a softer ride unless bottoming or topping out. I've had issues in my Trixie Combat [set up with hydraulic steering fluid hydrophillic rusting] and on other cycles I was asked to examine that had striction in fork motion or stem bearings, for bucking bronco sense from small road lumps and mild wind gusts till fixed.
Tony Folate image to worry you worry warts.
Tony Folate image to worry you worry warts.
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pete.v said:
Yes you're right, sorry for the wild goose chase, as it doesn't specifically say, but in his reply to 79x100, John seemed to be of the opinion that it didn't really matter from a technical point of view which damper goes on which side (unless he has since changed his mind?).
The Dominator instructions also say the same "Start with the rebound side, stamped 'R' on the alloy nut top face, and normally fitted to the right side", no discs (usually) on Dominators.
I guess I cannot help dragging this out a little but this is item 15 in the instruction.
"15. Fit the alloy needle top nuts to the damper rods and screw home into
the stanchion. Ensure the stamped ‘R’ is fitted to the right leg and the
stamped ‘C’ to the left leg."
I truly believe that maybe nobody really knows why and quite frankly, I just don't give a damn anymore. :?
LAB delete this miserable thread and let it die a quick death rather then letting it drag on down the pages to it's ultimate demise. There is nothing useful here. Thank you all the same.
Good bye all, I'm going with it. I know darn well someone will ask so I'll be leaving my bike to my dog. :cry:
"15. Fit the alloy needle top nuts to the damper rods and screw home into
the stanchion. Ensure the stamped ‘R’ is fitted to the right leg and the
stamped ‘C’ to the left leg."
I truly believe that maybe nobody really knows why and quite frankly, I just don't give a damn anymore. :?
LAB delete this miserable thread and let it die a quick death rather then letting it drag on down the pages to it's ultimate demise. There is nothing useful here. Thank you all the same.
Good bye all, I'm going with it. I know darn well someone will ask so I'll be leaving my bike to my dog. :cry:
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