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  1. K

    Fuel gage only works with starboard engine running

    I have a 1996 Mainship 31 Sedan Bridge. For some reason the fuel gage for both Port and Stbd tanks only works with the Starboard engine running. (I fish with one engine only most of the time.) I tried to trace the DC wiring diagram but it is so small in the owners manual I cannot read it. So I...
  2. K

    Transom moisture meter wet readings

    My boat is a 1988 27 ft SeaRay Sundancer twin I/O configuration. A buyer recently surveyed it and it flunked. Moisture meter readings of 15-20% at the lower center of the transom on the inside and 15-17% on the lower center of the transom on the outside. Stringer readings of 10-15%. All other...
  3. K

    Timing and prop change

    I bought a 1988 Sea Ray 270DA (twin 4.3l 175hp) 3 seasons ago and found out last year that sometime in the past the prop was changed from spec'd 14x19 to 15.25x15's. The boat ran well but was getting around 1.25mpg and it seemed that I had to run at higher RPM than normal (>75%) to get...
  4. K

    Prop change from specification

    I bought a 1988 Sea Ray 270DA (twin 4.3l 175hp) 3 seasons ago and found out last year that sometime in the past the prop was changed from spec'd 14x19 to 15.25x15's. The boat ran well but was getting around 1.25mpg and it seemed that I had to run at higher RPM than normal (>75%) to get...
  5. K

    Leak from rain inside the cabin

    I am trying to determine how a rain leak is getting inside my 1988 Sea Ray 270 DA. The leak is coming in from the starboard side. The sliding window molding/seals are very old and cracked. Unfortunately I cannot find duplicates or even something workable. Having said that the same is true...
  6. K

    Deadrise

    I am not sure how to interpret the difference between a deadrise of 23deg and 17deg. Which one is better, more fuel efficient etc? assuming similar lengths and weight. Thanks
  7. K

    Fuel Efficiency

    I am trying to get a handle on inboard fuel efficiency guidelines for gas and diesel engines. Anyone have a formula for what to expect?
  8. K

    Sea Ray 340 DA

    I am looking at a 99 Sea Ray 340 DA. 7.4L 310hp. Anyone have a feel for fuel efficiency on this model? Top end and cruising speeds? Thanks
  9. K

    Mercruiser 4.3l timing specs

    I have a 1988 SeaRay 270DA with twin 4.3l 175hp Mercruiser engines and Alpha one drives. My engines were stalling as I shifted into neutral during docking maneuvers. At first I thought the engine was at fault and had it tuned up. My 1988 4.3l 175hp Mercruiser timing was set at 0deg BTDC but...
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