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  1. 77searay197

    Vortec v6 conversion

    I’m replacing my 4.3 non balanced early 90s motor with a 99 vortec 4.3. I have rebuilt the short block right now but My question I have is since the vortec I have didn’t come with a flywheel will the one from the non balance shaft motor work or since the motor is internally balanced will it not...
  2. 77searay197

    Cam question

    I have decided to put a vortec 4.3 motor out of a 99 silverado. I?ve heard this cam would work in a boat but I wasn?t sure. I?ve tried to search for a cam that will fit av6 vortec with a balanced shaft and I?m having a hard time finding something that doesn?t have too much lift and that fits the...
  3. 77searay197

    4.3 to 5.7 swap

    I wasn?t sure where to post this but My 4.3 Yamaha sterndrive has low compression. I have a complete sbc with a mild can just sitting in the garage waiting to be used. I currently have a 180 bowrider. Now I know I have to at minimum change props, get manifolds, etc and know that the engine has...
  4. 77searay197

    Yamaha sterndrive thermostat

    My boat cooled fine this summer but I just wanted to make sure my thermostat was facing the right way up? I tried to post a pic but it's saying it's too large. When I take the top of the housing off the top part of the thermostat has the point facing up and the sprng down. i know cars well but...
  5. 77searay197

    Yamaha sterndrive shifting problems

    I went to take my boat out today and noticed the shifter was Binding up. I tried to adjust the cables and still binding. I took the outdrive off and it shifted smoothly. I go to put the outdrive back on and it was binding again. Then I noticed if I loosen all the bolts on the outdrive it was...
  6. 77searay197

    delco est timing not advancing

    4.3 Yamaha sterndrive with I believe a delco est distributor. I bought the boat with a cracked block and rebuilt a motor for it. for I have the timing shunt and set the timing to 8 btdc at idle. I disconnected the shunt and reconnected the other plug back in and when I would go to rev the motor...
  7. 77searay197

    Yamaha sterndrive

    I'm putting a rebuilt 4.3 motor in my 94 century 180 because supposedly the previous owner winterized it and well...cracks everywhere. Anyways I'm about to the point to where in gonna put the motor back in and I was wandering when I put the outdrive on is there anything in particular I need to...
  8. 77searay197

    1977 sea ray not starting

    I have a 1977 sea ray 197 bow rider I bought not long ago as my first boat. It has a mercruiser 233 in it. I went to take it to the lake this past weekend and turned te key and nothing happend. None of the switches worked or anything. I started it the night before and madr aure everything was...
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