[C320-list] Raw water system

[james_delong]

Y'all, (I'm allowed to use that term as I'm in Georgia)

Anyway...

I have an issue with the raw water system.  It seems to work intermently!  

Yep...checked the sea cock (clear), strainer (clear) and impeller (new)....

What is next?  I'm assuming the raw rater pump itself (do these fail?), heat exchanger and the mixing elbow, but don't want to tackle those without some indication either of these could be the culprit!

Some history.  Once we smelled rubber burning like the pump stopped rotation.  After checking this and tightening the belt all was OK.  A couple of other times there was no exhaust water, but the next time there was!  After the last sail, all was OK.  But starting the boat at the dock now results in no flow at all.

Ideas?

Thanks,

Jim #453