Recent content by Affinity

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    454 with low compression, but runs very good

    1990 454 Merc 300hp w/ Thunderbolt ignition / aprox 1000 hrs. While cruising last week, eng began losing power, 200-300 rpm, and began misfiring out exhaust. Appeared to be fouled plug(s) as confirmed by replacing them along with cap and rotor (which were all last replaced in Feb 02). Also...
  2. A

    454 with low compression, but runs good

    1990 454 Merc 300hp w/ Thunderbolt ignition / aprox 1000 hrs. While cruising last week, eng began losing power, 200 – 300 rpm, and began misfiring out exhaust. Appeared to be fouled plug(s) as confirmed by replacing them along with cap and rotor (which were all last replaced in Feb 02). Also...
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    Will the Bravo III lower drive unit bolt up to the Bravo II upper unit?

    ^27' Bayliner / 454 w/aprox. 1000 hrs and Bravo II drive w/aprox. 500 hrs.<br /><br />Can someone tell me if the Bravo III dual prop lower unit can bolt up directly to the Bravo II upper unit with no modifications? Aside from lowering the rpm's and saving fuel during cruise, might I also gain...
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    Swap out a Bravo II with a Bravo III lower unit?

    Ok, would like some concensus on this one. I have a 1990 Bayliner Ciera 2665 Sunbridge (9' 6" beam wich later grew up to be the 2855 in 1991), 454 Bravo II with aprox 1000 hours<br />on the motor and 500 hours on the drive. Engine and drive runs great. However, there's a couple of 1986...
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