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  1. J

    What is the gear ratio ????

    Hello I bought a Bravo III drive (used) the seller said that the gear ratio was 2:20 to 1. The drive has no serial # engraved in it ( contacted merc was told that after 2000 they stopped stamping the actual drive and put the serial # on the sticker which is long gone). Somebody did scrape the...
  2. J

    Bravo II>>> correct gear ratio

    Hello, 1994 maxum 2700 scr, single screw 7.4 litre Merc. Boat was purchased with no drive on her. I know it should have a Bravo II drive but have no idea what gear ratio! thank You
  3. J

    should water rush in ????

    started a new post for this issue !!! having overheating problems my question is this. my boat is in the water, today i removed the water intake hose going from the transom assy to my raw water pump ( merc bravo II ). i expected water to rush in but it just trickled in. i put a hose against the...
  4. J

    454 overheats under load

    I AM ABOUT TO LOSE MY MIND !!!! 88 25' sea ray 92 or newer mark v block ( i looked up the numbers on the block and thats what i came up with ) with thunderbolt ignition,fresh water cooled ,bravo II drive. i bought this boat at an estate auction and have no history on the boat or when it was...
  5. J

    water in my exhaust seperator

    merc 454 bravo II drive , fresh water cooled ( 1/2 system ) . had some overheating issues , after some troubleshooting i decided to pull my risers off and they were packed with crap and restricted . my boat is in the water , when i pulled the risers i was suprised to see that my exhaust...
  6. J

    ignition timing on a 454

    here we go !!! i just bought a 1988 sea ray sorrento ( 25' ) with a 7.4 mercruiser package . after a few hours of cleaning and tightening and checking everything out i found the distributor was loose. so i got out my timing light and got ready to set the timing. as i put my light down to find my...
  7. J

    one cylinder filled with sand

    okay a friend of mine asked for my help, he has a 1984 carver (26 ft) salon cruiser. powered by a merc 260 horse 5.7 ( chev v-8 )fresh water cooled with 355 hours on it. the motor would not turn over , after some troubleshooting we determined that the motor was siezed. we tore it down and after...
  8. J

    cant remove my outdrive

    please help !!! i have a 1979 searay 260 with a 5.7 merc. I/O . the problem is that i cannot shift it into forward or reverse and since i cannot get it into forward i cannot remove the drive. i did disconnect the lower shift cable from the bracket at the rear of the engine. i tried to operate it...
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