Replacing the Engine Mounts
If you need to replace the engine mounts on your Perkins 4-108, here’s the simple answer: use Bushings Inc. DF 2207-2 mounts. Now, it was a lot of work to figure this out, so I am going to give the long answer too.
Engine
Prop Analysis and Replacement – Part I
Rainshadow has a 16 inch diameter, 12 inch pitch propeller that is specified by Camper and Nicholson for the Nic 38. It sits in an aperture, which is about 20 inches in diameter. She also has the original Perkins 4-108 with a 2:1 reduction transmission. We find there are three major problems.
Ready to go… maybe not
Yesterday, we were all set for our first overnight cruise. The engine was running, Van was ready to cast off the docking lines. He was telling me the plan, but I was preoccupied. “Are you listening to me?” he asked.
Cleaning the Heat Exchanger
Rainshadow’s Perkins 4-108 diesel engine uses sea water (otherwise known as ‘raw water’) to cool the lube oil and engine coolant in a two-part heat exchanger. General lore is that you’re supposed to periodically remove the heat exchanger and clean the tubes that carry the sea water through the housings. Rainshadow’s heat exchanger had never been cleaned in all her long 35 years. So we decided to give it a go