- Oct 6, 2006
- 12,156
- Boat Info
- 1996 450DA
- Engines
- 3116 Caterpillars
There is an electrical junction box on the forward end of the engines….hinged door with a latch…….everything in that box should stay dry. Everything else is made by Caterpillar to operate in a marine environment. Use a light degreaser like foaming Gunk followed by a light spray with a water hose then spray the engines with Purple Power to remove the degreaser residue. Just avoid spraying the water stream directly on the alternator, the starter connections and the junction box.
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