Improvised Rebound check valve

[cbertozz]

So on my voyage of discovery with Ceriani forks I took out the improvised rebound check valve and fitted an original (two valve plates, a brass collar and spring).

Now the rebound is glacially slow, perhaps due to the lack of the rebound hole in the upper side of the damping rod.

So as I?m now a whizz at dismantling these forks I?m look at whether I can temporarily use the rebound check valve that was apparently machined up for me by the last guys that touched the forks. By my reckoning they were probably working ok and it was the upside down piston ring which was scuppering the ride.

However I?m curious and want to try reassembling with this improvised check valve but can?t work out which way it would have worked.

I?m assuming that the beveled edge would be pointing up so as to more effectively seal under compression, much in the same way the oem setup has the brass ring is set to seal. There is a washer in the mix as well although not sure if it should be there!

Looking at this great explanation helps and makes me think it should have together thus: valve<->washer<->valve body bevelled edge up<->valve
http://www.laverdamania.net/emulatorgb.htm

Here some close ups.

 

[IAG]

My opinion is that you will still need a spring & the "custom" setup didn't provide any damping beyond an orifice to slow fluid movement, poor performance prob noticeable during panic stops or a series of small undulations. Aren't you fitting emulators?