I'd like to replace the rubber grommet AKA: seal ring (#35 - A 601 016 01 63) that holds the breather pipe (#41 - A 602 010 06 70) in the valve cover (#5) on my 91 OM602.
Short of breaking the 90 degree connector I'm unable to find a way to remove the breather pipe from the seal ring (red arrow).
What's the secret to disassembling these two items without breaking them (a new breather pipe is $35)?
