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  1. NHGuy

    Lowrance Skimmer-How fast can it run?

    I bought the boat in my signature last year. The first time I really let it run to speed the skimmer transducer on my transom broke right off the boat. Now I want to confess that I haven't owned one of these before so I may have set the pivot tension incorrectly. May have set it too tight. I...
  2. NHGuy

    gauge issue

    I installed a new fuel hose today and got my motor un winterized. 89 5.7 Mercruiser , Alpha 1. But I have somehow created another issue. When I was running on the muffs my temp gauge did not move and my fuel gauge showed empty with a 3/4 full tank, I was able to see 150 degrees with an...
  3. NHGuy

    stupid, stupid, stupid

    89 5.7 Mercruiser. Well, I went to pull out the boat from winter storage and did a dumb thing. I had bought a new coil because the old one looked cracked. I cranked it with the new coil, no start. Then without checking I put coil leads on in reverse because the new coil was in the other way...
  4. NHGuy

    89 5.7 Mercruiser, Vortec Heads

    If I want to do Vortec heads on my 89, 260 HP, 5.7 small block GM with center bolt valve covers what else do I need to make it all happen... and what else SHOULD I do to make it right? Should I change the cam, do I have to? Do I have to do the intake manifold? Can my Rochester 4 bbl handle the...
  5. NHGuy

    Shutter Identification

    I have a 1989 260 horse 5.7 Mercruiser with normal exhaust. The pipes exit the risers make a downward turn and go into a Y shaped collector before exiting the transom. My shutters are at the top of the Y. I am trying to get a positive ID on the shutters because they jingle and I am replacing...
  6. NHGuy

    Ratios

    So if my drive has a ratio of 1.47 is my prop turning 1.47 times engine RPMS? Or am I turning 1.47 divided by engine RPMs. And for example, I saw a video of a guy with a built Evinrude 200. Is his prop turning the same RPM as the engine? Or do they have a drive ratio involved?
  7. NHGuy

    ignition parts

    I'm looking for opinions on ignition stuff for my 89 Mercruiser 5.7 Litre, 260 HP, Type MCM. It has the Thunderbolt Ignition and it does pretty well considering. Considering the rotor tip is burned, the rotor connection points on the cap are corroded, and here is the biggie, the coil is...
  8. NHGuy

    88 Mercruiser 5.7 riser heat

    My risers are not the same temp, is this a problem? Gauge is good.
  9. NHGuy

    prop help request

    Hey,. I've been lurking for a couple of months and I'm ready to ask for a little input. Boat is a 1988 Baja Sunsport 196 with a 5.7L, 260 HP, 4 barrel Rochester carb, Mercruiser Alpha 1, 1.47 ratio, 14.5 x 19 Michigan wheel Vortex prop. I get 51 MPH at 4800 RPMs.There is more throttle...
  10. NHGuy

    Skimmer Transducer Speeds

    Should I limit my speeds when operating my boat with the transom mounted transducer in the water? The boat is new to me, arrived with an Eagle Cuda 168 which handily has depth and water temp. The reason for my question is the first time I ran up to 45 mph with some people in the boat, my...
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