@Reel_Chris
New member
I removed the lower unit of a new-to-me 1973 Merc 110 9.8 horse to replace the water pump (3737XXX serial number range). While checking the water intake tube for clogs, I noticed that this hole next to the water intake. I can't find the right schematic to figure out what it's for. Can anyone tell me what it's for and/or what parts I need to fill it?
Thanks!
Thanks!