I'm trying to source parts to make a lower unit pressure tester for my outboard. This will allow me locate the source of water entry into the casing. A tight seal must be made during the test to maintain 14.2psi for ten seconds. I believe you can buy such a tester but it costs rather a lot of cash. Thanks for your help, any suggestions as to where I can get other parts or pointers please feel free to add them.
What is the thread size on a Yamaha 80 hp outboards gearcase/lower unit drain plug?
- Thread starter Peter E
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