Trim pump O-ring size
Just wondering if anyone can help me out sizing an O-ring on the trim pump of my Merc 150 XR2.
During the last season we found that when the engine was trimmed right down the pump pee'ing hydraulic oil out the top seal. On opening he pump up it was found that the top O-ring had perished.
I checked with the usual dealers and to get a replacemnt KIT is £90 or there abouts!! i don't want to pay this since I am only replacing one ring, not a complete rebuild.
i have access to O-ring suppliers or even make my own up but due to the deformation of the original ring its difficult to ensure I get the right size.
Can anyone please tell me the inside diameter and rubber diameter of the O-ring highlighted in the attached file. I think its 73mm and 2.5mm but as I said, I cannot be 100% sure due to the condition.
The less time I have to work, the more I get done !!!