Questions before replacing freshwater pump

[chowdan]

Hey all

Just noticed my freshwater pump is leaking coolant, i'm guessing its the gasket, but if i'm replacing the gasket, i'm thinking to just replace the pump with a new one and putting this one into the spares.

Anyways heres a couple photos and a parts diagram. Before i pull the trigger on the new pump, i figured i'd double check to see if others think its the gasket or if it might be something else that i'm overlooking

[Searles]

That is the coolant pump ,it shouldn’t be weeping rust,how often has the coolant been changed ,that maybe the gasket or a pin hole in the casting removal and inspection is the only safe answer⛵️⚓️

[Wotname]

It maybe be rust from the outside!
EDIT - looking closer, is that a drop or a stain in the photos?

[chowdan]

Originally Posted by Searles

That is the coolant pump ,it shouldn’t be weeping rust,how often has the coolant been changed ,that maybe the gasket or a pin hole in the casting removal and inspection is the only safe answer⛵️⚓️

Fortunately it's not rust. Our coolant is orange. Actually might be a good idea to maybe flush the system and switch to a different colored one to indicate if there is rust issues occuring down the road. System was flushed back in 2020 and i put this coolant in after rebuilding the turbo.

I think i'll pull the trigger on a new pump and seal.

[skipperpete]

That leak might originate from higher up, possibly the hose..... or trickle down from the mechanical seal. If you have a lot of hours on the engine ( or high pulley loads), that makes your decision very justifiable.

[chowdan]

Pulled the trigger on a new pump and seals. Should be ready to pick up next week sometime. Hopefully my order from Toad Marine comes in around the same time so I can tear down heat exchanger as well as oil lube cooler.