I have just built 2 Ansmann X2C cars for my son and I.
The instructions tell you to apply damper oil to the O rings.
I was building all 8 dampers together so pured a little of the kits damper oil into a small tray and put the red O rings into the oil.
I built the first set of dampers then went to start the second set and found that the O rings had swelled in the oil.
I continued the build as I didn't have any more and finished the second set but they are not right and the stiction of the O rings is considerable.
I drilled the rear pistons as advised in this thread on both rear sets and used the same Schumacher Oils.
The first damper set feels really nice and smooth while the second set is very stiff initially then after a few pushes on the car it frees up but is not great.
I have ordered new O rings from my Model Shop to replace the second set.
Has anyone else had this problem?
Over all the cars have gone together well and and we're looking forward to racing them.
Regards Ian