[C320-list] Yamar engine fuses and other questions

[millers1 at aol.com]

Over the Summer, I collected various C320 site e-mails dealing with issues I felt 
it was better to understand before they might occur:
My boat is #680,  year 2000:
On the Yanmar engine fuse discussion, three fuses were identified,  I located the two on 
the Port side of the engine located just behind the alternator and in front of the
started motor. I have not located the 3rd fuse??? can anyone better describe where it is,
what cable it is in and is it a two prong fuse (newer style) or the older cylinder looking type??

2.  One discussion also mentioned fuses in the battery cable lines that
were pushed up under the shelf
overhang in the main cabin settee.   I had no luck in locating these either.
If in the lines.... approx. how far from battery terminal??

3.  So I do not have to rip out the Starboard Aft locker to see the fuel tank: 
what material is the fuel tank made of ???...... one discussion of a failed tank 
indicated aluminum.

Thanks,
Art