Depth of knowledge here at SailNet is only surpassed by the wit that often takes you by surprise.
And most here would agree that SailNet contributor Maine Sail ought to be knighted for his web site called Compass Marine How To Articles
on maintenance and such.
For C-25-specific tidbits, try the Catalina/Capri 25/250 Forum
. For knowledgeable parts/upgrades, people seem to trust Catalina Direct