1986 60hp VRO, where to hook up water gauge?

stumpnocker

Cadet
Joined
Aug 7, 2009
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11
I'd like to install a water pressure gauge, I already have the gauge and tubing, but where do I hook it up on the motor? I was told there should be a nipple at the top of the head but I can't find anything... I assume teeing into the rubber hose for the tell-tale hole isn't an option since it's lower pressure? Do I need to drill & tap a hole to install a nipple?
Thanks,
 
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