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  1. M

    Timing - 1992 Merc 3.0L EST S/N:0D803151

    Okay, rebuilt 3.0L installed in boat, everything hooked up, engine runs great - except that it won't time properly according to the light. Mercruiser ServMan procedure followed to the letter (EST module jumpered, shift interrupt switch bypassed, etc.) and I'm seeing the timing mark advaned as...
  2. M

    New "search" function leaves a lot to be desired.....

    Anyone else unhappy about the dramatic changes? I think it would have been better to leave some of the original functionality intact, rather than completely alter both the appearance and format of site and search. I'm hoping you guys are at least all still on here! :%
  3. M

    OMC Cobra outdrive

    Sorry - double-post. :p
  4. M

    OMC Cobra outdrive

    Okay, fellas - time to spend some money on the big-lake boat! :eek: My buddy took my 1987 Bayliner 2150 Capri cuddy out last year, neglecting first to dewinterize the boat and do all of the pre-season maintenance checks (oil, PS fluid, gear lube, etc.) and completely FRIED the upper...
  5. M

    Rod bearing failure after SeaFoam use

    Anyone ever experienced bearing failure after adding SeaFoam in the oil? I recently added some SeaFoam (about 4 oz.) to my oil after changing it and a loud metallic clacking began. According to my stethoscopic probing, it was coming from the bearing for Cyl.#1. This is also a case of which came...
  6. M

    Hydraulic lifters for Mercruiser 3.0L

    Does anyone have the NAPA part number for the lifters for a 1993 Mercruiser 3.0L? BONDO - you posted the NAPA part number for a 1987 3.0 back in July of 2004 - is it the same lifter? Thanks!
  7. M

    Spark plugs: Merc 3.0L vs. 3.0LX

    1992 Mecruiser 3.0L, S/N:0D805131<br />The previous (original) owner of my boat thought it was powered by a 3.0LX (wishful thinking, I think) and so used plugs and other maintenance items consistent with this belief. I'm dealing with a potential burned valve issue and in trying to determine the...
  8. M

    Vacuum test - 3.0L Mercruiser

    Okay, I've perused all of the other posts related to vacuum testing and still have a question: how many places are there to check vacuum on a 3.0L Mercruiser? I see folks checking engine vacuum and fuel line vacuum at various points, so I'm asking for all the points and the specifics on hooking...
  9. M

    Mercruiser 3.0L valve guide seals

    Does anyone know of a good source for replacement valve guide seals? I have found the valve STEM seals at several sites, but can't seem to locate the GUIDE seals anywhere. Thanks!
  10. M

    MerCarb identification - date of manufacture

    Does anyone know how to decipher the date stamp embedded in the numbers stamped on the side of a MerCarb? I'm trying to ascertain whether or not the original owner of my boat replaced the carb sometime within the last few years. I have a 1992 3.0L Mercruiser (S/N: 0D805131) breathing through a...
  11. M

    Johnson GT150 VRO tell-tale

    The tell-tale stream on my 1989 Johnson GT150 has suddenly stopped putting out a strong stream of water. It drips, instead, although the other cooling water outlet ports seem to be working adequately. Is the tell-tale water stream critical to engine cooling, and how do I best restore the flow...
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