Reply To: 1980 ish Mercury 7.5 hp Tell-Tale?

[Buccaneer]

Don wrote:

Yeah, not familiar with the merc cooling system, but it appeared as though steam/exhaust was coming out of that telltale, which probably indicates it is not plugged.  Was the engine gettting hot, kind of looked that way.  In this case, I think the telltale is telling the truth.

I’m not that familiar with these Mercs either, although I grew up with my dad’s 1973
model on the back of a pontoon boat. Was always a great running motor until it
sat too many years.

I would think that it was starting to get hot, but not to the point of smoking or
making funny noises! When put in gear and wound up a ways, it would start
to pump water, but pissing a weak stream.

Awaiting to hear back if I’m going to do anything further on this motor.
Hopefully an impeller replacement isn’t too tricky on this motor if the
owner desires me to try it!

Prepare to be boarded!