Home › Forum › Ask A Member › Mercury mark 25 lower unit seals
Is there supposed to be a seal in here?
Thanks
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yes it is a rubber tube and a special washer not a seal as you know it also check down in the hole for a welsh plug if it is damaged replace it for it wont pump water to the power head.
Okay I found theese two still on the water pipe. Not sure what a welsh plug looks like. Thanks Dave what is your favorite mercury motor?
I think I’m missing the welch plug
I like the mark 28. and many other mercs from 50’s to 64.