My '85 VIP I/O quit charging. The regulator is mounted on the rear of the alternator. Is there any way of checking each, or do they have to be replaced as a set? I took the alternator off and cleaned the contacts, etc. to no avail.<br />I checked one website, and it said there were Delco and "Mondo ???" alternators used on these boats, how can I tell?<br />Any info is GREATLY appreciated.<br />Steve W.