I bought a secondhand Cedrus classic. Really liking the adapter system, stiffness and ride feel so far, however in the two sessions I have used it so far I noticed that the adapter was loose at the end due to the bolts not being tight anymore.
Does anybody recognize this issue and have some tips for it? Second time I paid attention to tightening a lot, although I am only using a screwdriver style bit holder, so I cannot apply a lot of torque. I am also using acid-free vaseline. Is the solution to tighten more or to use tefgel instead?
Can you post a picture showing the threaded holes? Best case is get a t handle driver so you can apply more torque. Worst case is you may need a new adapter (if it has had a hard life with its previous owner).
Also which foil system? After time, on some foil systems - pocket style - the fuselage side can experience wear. This “looseness” between fuselage mount and the adapter can provide enough motion to back out bolts. The solution I’ve used here is the aluminum HVAC tape (or even clear gorilla tape) to shim and close up any worn points. I did this on my Uni and Axis adapters. The saddle type adapters didn’t really have this issue.
The threads in the mast look fine to me, the adapters do not seem intensely worn. It’s F One and Cabrinha, the Cabrinha fuselage is older and could have some play, but the F One fuselage is new and both fuselage - adapter connections seemed tight after the session. But I will check better after the next session.
Replacing the m8 adapter hardware will really help. Make sure you don’t buy the Ti Screws as they are not compatible with the classic adapters. There’s a note here on the page. Adapter Hardware – Foil Cedrus
I’ve owned a classic mast and currently have a wind and forged aluminum.
A little Loctite (blue) helps keep screws from loosening, assuming you’re not removing the adapter very often. For screws that are removed every session, I found that Tef Gel helps a little to keep them from loosening. (though I realize that’s not the intended purpose of Tef Gel.)