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  1. K

    Fuel pump inspection

    50 HP 3 cyl 1989 elpto. Can anybody tell me what to expect when I pull the fuel pump. I need to inspect the diaphram and I take it I will need to replace gaskets along the way.<br /><br />Regards Keith B.. :)
  2. K

    1989 3cyl 50hp spark plugs

    anybody tell me what type of plugs I should be using. Currently there are NGK BUHW-2. plugs in, is this correct.. :)
  3. K

    Losing power 1989 50hp 3cyl

    Coming back from a trip recently engine started losing power and surging back intermittently, checked plugs etc, think it is a fuel problem, ran it on a tank of premix to discount oil injection unit and it still did the same. Checked fuel lines etc still no idea. Any tips on diagnosing this...
  4. K

    What the **** is that still doing there ?.

    5 Miles out in the Irish Sea still hung over from the night before, nice fishing, weather okay and starting to feel okay again. Then somebody yelled, "What the **** is that still doing there".<br /><br />Well I had forgotten to take the trailer board off the back end when we launched of the...
  5. K

    Just wondering how the oil pump works.

    Have got 50 HP Mariner circa 1989 with remote auto lube reservoir, there is no problem but was wondering if anybody could take the time to explain how the thing works.<br /><br />Regards Keith B...
  6. K

    Chunk out of prop

    Hi all, took my merc 50 elpto out for the first time yesterday since lower unit service and a new exhaust gasket. Everything ran fine but I hit a rock and took a small chunk out of the leading edge of one of the prop blades, the prop is a 10.5 inch 13 pitch, is there companies in the UK that can...
  7. K

    How many ft lbs torque for baffle cover

    Merc/Mariner 50hp 1990 3 cyl, any ideas on how much to torque the 15 or so bolts on the port side water jacket cover and exhaust baffle, also is there any particular sequence..<br /><br />Regards Keith B..
  8. K

    Emulsified residue in exhaust.

    Merc/Mariner 50HP 1990 3 cyl...After having a short overheat I have now changed the impeller, circulation and temperature is again normal..Whilst the lower unit was off I attached a hose to the end of the water take up pipe with the intention of flushing the system and running up the engine to...
  9. K

    Mar/Merc 50HP 1989 how much gear oil..

    Hi folks...<br /><br />Any guestimates as to how much lube I should expect this baby to take, also with regard to the top vent or level plug as we call it here, where should the engine be trimmed when re-filling..<br /><br />Regard Keith B..
  10. K

    Removing lower unit

    Hi all, I have a circa 1990 Merc 50hp ELPT,no model but engine ser # 9592697. I have removed the nut inside the trim tab cavity and the one in the middle of the anti-cavitation plate, I have also loosened the two side locknuts ready to fully remove when the gear housing drops sufficiently. The...
  11. K

    Mercury identification

    Hi all, I have a 50hp ELPTO Merc with no model number on the stern bracket, the cylinder block serial number is 9592697. Any ideas on age and model type would be appreciated. Also struggling to remove gear housing to inspect impeller..
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