Diesel Engine
The Catalina 34 has had at least three different motors. The M25, a 21hp engine, was installed on the the early models. The M25XP (23 hp) became standard in 1988. The M30, a 4 cylinder producing 28hp, became an optional engine about the same time and is standard in the Mark II. All are produced under the Universal Motors brand (now Westerbeke Corporation). Due to lack of available supplies, the factory occasionally installed a Yanmar engine (note: Yanmars are higher-compression engines, which do not require glow plugs).
Contents
Cooling
Raw Water cooling system
Internal engine system
Heat Exchanger
Exhaust
Mechanical
Adjusting Valves
All about alternator belt tension & pulleys
Air Filters
Blow by
Engine Mounts
Injectors
Oil, Filters and Changing oil
Rebuilding a M25xp
Transmission
Shaft & Propeller
Flexible Coupling
Shaft Alignment
Stuffing box
Propeller
Electrical
Alternator mount/bracket upgrade Important safety upgrade for M25 (not XP) owners
Engine Harness Upgrade
Glow Plug Solenoid
Starter
Fuel
There are many fuel replated pages.
Misc Projects
Engine Cover Hinge
Outboard Motor Mount