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  1. M

    How do these manifolds, risers, elbows look? 1998 5.0Gi's

    We suspected we were due for a exhaust service since we purchased the boat at the end of 2019. Engines are open-system ocean-cooled and neither engine ran "hot", we could always place our hand on the riser and hold it there. Taking an temp gun reading showed one riser was a bit hotter, but all...
  2. M

    Oil sheen in water after start up

    We have twin 5.0 Gi motors (PBYCCE) and SX-M outdrives, 1998 vintage. We just had a major 'haul out' overhaul on both SX-M outdrives, fully cleaned and serviced, new bellows and gimbal bearings, and U-joints, and seals, gaskets, and lower seals. Then we had them painted with Interlux antifoul...
  3. M

    Should we antifoul paint our 1998 SX outdrives?

    We are hauled out now and having the shipyard paint the bottom of the boat. Several people suggested we paint the outdrives for an extra charge. We pay for regular bottom cleaning and the boat was just cleaned before hault out. Boat sits in a salt water slip year round, with sun and tide...
  4. M

    1998 Twin 5.0Gi SX outdrive Rumble/Growl

    It makes the noise while steering, louder when steering to Starboard than to Port. The Port engine is the noisemaker and only when in gear, it runs up to high RPMs smoothly on throttle only (hitting disengage button on throttle). Starboard engine runs smooth in or out of gear, so smooth it is...
  5. M

    Where does this little hose go from the thermostat housing?

    Where does this little hose go from the thermostat housing? I tried tracing it but I don't have much room to see where it goes. I also tried searching the web and exploded diagrams. Judging by how rusty my other large hoses were, this one has to be bad since it is so small. I want to...
  6. M

    Can't remove flame arrestor due to clearance

    I can't remove the flame arrestor to clean it. It's'98 5.0Gi TBI injection has the offset stud and two injectors in the way. In searching online it appears that the stud unscrews, but we can't do that with the flame arrestor in the way. Any ideas? Maybe to clean it we can just tip it back...
  7. M

    1998 VP 5.0Gi looses power, maybe in protection mode

    Raw water cooled, and lives in a slip. First thing I want to ask is if you can check or change an impeller in the engine pump with the boat in the water? It is only the Port engine with the problem. It starts/idles great, runs fine in lower rpms, and as you accelerate, it gets all the way up...
  8. M

    Flushing 5.0L Gi engines in wet slip with block drain hoses, is there a better way?

    We are new to this boat and the previous owner used this flush system to run freshwater through both 5.0L engines after returning to the slip each time. We wanted to keep up the routine, but the block drain is a very small opening and we weren't sure if we could plumb those lines to another...
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