Quote:
Originally Posted by cn90
Thanks andrewwynn,
The photo you posted above should NOT be used to show your point.
That photo I took is when I pried the Coupler out.
It was halfway out so it is NOT an in-situ photo of factory setup!
I am very convinced the root cause is either:
A. O-ring shrinking with time.
B. The one-way valve (Plastic+Spring) momentarily seized,
pressure builds up and blows the O-ring outward...
Just some theories...
BTW, I think one can remove the Plastic+Spring combo (I did not) w/o any issues. This is an over-engineered part.
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Thanks for the feedback I thought that photo looked partly disassembled but it works perfectly to showcase the issue because it's exaggerated somewhat. I've updated my post to make it clear.
I didn't take a picture from the correct angle to show the problem mine is already fixed by the time I snapped the shot.
This photo shows the o-ring pushed out of the seat. In both mine and wife's case the photo marked up with the blue and red lines perfectly showcases the issue though it was a little tighter.
Neither A nor B is correct. Both my wife's and my car had the same exact problem where the o-ring writhed out after the part twisted like shown (by chance) as shown in the photo above.
B is not accurate because there is a pressure relief valve to deal with back pressure and dump over pressure to the right side tank
The problem could be exacerbated by the o-ring being smaller than it could have been but without movement of the plastics the o-ring would be lifetime.