S&W Diesel, Inc.
There is also S&W Diesel, they did a great job rebuilding my Yanmar 1GM10 back in 2004. Robert Greening who works there is a friend of mine and he help me replace my fuel tank in 2011. Very pleased with the experienced staff there. They also work on Perkins, Yanmar, Isuzu and John Deere Marine, I bet they could help with your Palmer.
http://www.swdieselinc.com
S&W Diesel, Inc. 336 Lakme Ave.
Wilmington CA 90744 (310) 835-3155
Email us at
swdieselinc@sbcglobal.net
there is also
Captain's Locker. I have only bought parts from them, but, Captain’s Locker is a marine and boating supplies and equipment store. Conveniently located in the Alamitos Bay Landing, the store services novice and expert fisherman alike. It also offers boat-repair services and tools. In business since 1998, the store offers free parking and dock-side services
194 N Marina Dr, Long Beach, CA 90803
(562) 598-6611