restoring
the original manual had nothing about wiring or plumbing. It was mostly a "thank you for buying and keep it clean". Since these are not "one design" boats, they all differ. My suggestion is that you upgrade to what makes sailing enjoyable to you and your crew, and make it as high quality as possible as you go, for safety and dependability. When things get bad, you don't want to be distracted with worry that X will let you down when your lives depend on it and you need it the most. As a Cal owner, you might also want to join the cal discussion list on the www.sailjazz.com groupReggie, Cal 27 T/2, "Knot Ready"