Vulcan Bagger Forums - View Single Post - Got NOS Forks, dont seem to have dampening?

RACNRAY · 05-21-2013, 10:08 AM

These are simp[le damper rod forks so not much can go wrong. I would disassemble them to inspect a few areas.
At the top of the damper rod is a piston, these usually have a groove in them with a floating piston ring, usually made of some type of plastic. If this ring is damaged, broken, scored or stuck in the groove it will allow oil to bypass the dampening rod orifices. Also inspect the inside bore of the chrome tube. Since it is made of steel check for rust. This rust will damage that ring and also not allow that ring to make good contact to the inside bore, thus again allowing the oil to bypass the damper rod orifices.

If all this checks out ok then there is the possibility that the oil has broken down. Did the oil appear thin? If these are new forks they should operate as new forks, so the exact cause of their loss of dampening needs to be detirmined.

HOPE THIS HELPS

RACNRAY

05-21-2013, 10:08 AM	#4
RACNRAY Sr. Member Join Date: Sep 2011 Location: SOUTH FLORIDA Posts: 1,210	These are simp[le damper rod forks so not much can go wrong. I would disassemble them to inspect a few areas. At the top of the damper rod is a piston, these usually have a groove in them with a floating piston ring, usually made of some type of plastic. If this ring is damaged, broken, scored or stuck in the groove it will allow oil to bypass the dampening rod orifices. Also inspect the inside bore of the chrome tube. Since it is made of steel check for rust. This rust will damage that ring and also not allow that ring to make good contact to the inside bore, thus again allowing the oil to bypass the damper rod orifices. If all this checks out ok then there is the possibility that the oil has broken down. Did the oil appear thin? If these are new forks they should operate as new forks, so the exact cause of their loss of dampening needs to be detirmined. HOPE THIS HELPS RACNRAY __________________ "TRUE HAPPINESS IS IN THE HEART, NOT IN THE OUTSIDE FIXES" WITH OVER 46 YEARS AS A MOTORCYCLE TECHNICIAN/HI-PO SHOP OWNER I AM A PURVEYOR OF FACT NOT FICTION! "WE LIVE OUR LIVES IN CHAINS NEVER KNOWING WE HAD THE KEY"
	0