I need to replace my fuel sending unit in my 2002 VIP Deckliner (Mercruiser 4.3 I/O) and am getting all kinds of conflicting results on various sites. Some say the floating arm type is fine, some say WEMA only, etc. What's in there now is the floating arm, and it only reads from 33-140, and that's sporadic. Most of the time it just sits at 1/4 tank on the gauge and I had to manipulate the sender arm multiple times to get it to vary ohms, so I know it's shot. Once it started changing ohms the gauge did sweep so I know the gauge is good also. Question is, go with WEMA or another arm type or what? Also, what is the proper way to measure? It's 11-3/8 from top edge of tank to bottom of tank with a tape measure currently, and from what I'm reading the recommendation is 1" of gap from the end of the WEMA sender to the bottom of the tank. While I was in there checked and no trash or contamination and the pickup tube screen is clear (because I know that's going to be a recommendation!)
