Circulator pump doesn't turn (sometimes)

Bob on This Too

New Member
Nov 10, 2008
5
Long Island, NY
Boat Info
2002 SunDeck
Engines
5.0 MOI. Bravo III
While trying to winterize '04 5.0L MPI, the fan belt was squeeling. I noticed that the circulator AND raw water pump pulleys were not turning. I figured they were frozen (it got cold last night), but if I loosen the belt, the circulator pulley turns by hand (not while engine runs, though). The raw water pump pulley seems to want to turn only the wrong way by hand.
I plan on using a prtable heater to heat up the engine compatment tomorrow, but wanted to throw this out there to see if anyone has an idea why they would act this way.
Thanks Bob

Sun Chaser..... you were helping me... did I leave anything out?
 

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