Quote:
Originally Posted by Jan Larsen
I have no problems with leaking and never have had when using the standard red o-rings. The blue competition ones however I had nothing but trouble with. I ended up adding a bunch of shims to the cartridge to stop them leaking but that just made them feel like the red ones, so I threw them away in anger and have never used them since.
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EXACTLY what i experienced.
Regarding the X- RIngs i used them first time on my 511 and saw from the beginning that i had to shim them. Did it and from standing on the shelf since a month or so there is absolutely no leaking and they feel much smoother than the standard o Rings. I have to race them for a couple of times to be 100% sre they are free from leaking but so far it looks all good.
So if you want to use X Rings you MUST shim them or they will leak. A shame Tamiya doesn´t provide any info regarding the shimming on neither the packages of the competition blue rings nor the X rings.