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  1. Vic.S

    Qu about marking on 30HP gear case

    Can anyone please explain the meaning of the numbers 13x 26 on this 30hp Mariner
  2. Vic.S

    DT5 (1978) water pump

    Does anybody know why there are these two holes in the water pump outlet, I think the top one locates the grommet but why the lower one ?
  3. Vic.S

    Derating a 5 hp ( ca, 1995 model) to 4 hp

    Suppose one wanted to down-rate a 5 hp to 4 hp to get around licensing regulations on certain UK rivers what would be the best way of doing it ?
  4. Vic.S

    Questions about priming bulbs

    I've often seen advice on here that a priming bulb should be held pointing upwards or "at the sky". Does it really make any difference or will they work just as well pointing at the ground . They have little valves in them. Does any one know what these valves are like?. Id always assumed they...
  5. Vic.S

    Pump impeller installation

    We often see suggestions that when a pump impeller is installed it should be installed so that the vanes are folded in the correct direction to take account of the direction of rotation Is this really important or will the vanes flip over as soon as the engine is started if the impeller has...
  6. Vic.S

    Gear case level and drain screws

    Sometimes one sees socket head ( Allen type) drain/ level screws in the parts lists but most seem to have slotted heads Anyone any idea why socket headed screws are not universally used.
  7. Vic.S

    compression tests

    It is frequently suggested that a compression test is performed as a basic diagnostic tool. Usually questions here are about 2 strokes .Is the compression test equally valid as a basic diagnostic test for 4 strokes? My first thoughts are that probably even more so given the possibility of...
  8. Vic.S

    It seems to be working better

    The forums seem to be working better now.
  9. Vic.S

    If it gets any slower

    Vic: It will take a little longer to load posts and replies if the forum continues to be slow. Please try to be patient and KNOW that there is a team of people working extremely hard to resolve the problem created by the software designers, NOT iboats. If you are feeling frustrated, and wish...
  10. Vic.S

    Able to post without error message today

    As title. For the first time since the so called upgrade I have been able to post without getting the database error message.although still a little slow. Fixed at last i hope
  11. Vic.S

    Just testing how Photobucket works on these forums

    Clickable thumbnail? Full sized picture? No link back to album? Original
  12. Vic.S

    Beware the perils of silicone sealants

    I thought I would share the picture below with you. An internet forum acquaintance is working on a 1982 4hp and has taken the power head off to investigate lack of cooling water flow. He found that it had obviously been off before and reftted using the old gasket and lashings of silicone...
  13. Vic.S

    2000 15hp 2 stroke Mariner. Thermostat?

    Should the above engine definitely be fitted with a thermostat or is it optional? If optional when would you expect one to be fitted and when not?
  14. Vic.S

    Bladder and hose connections ... small (4hp ) carb

    I am aswering a question on a UK forum (about float adjustment) but the supplementary question asked is: "What is the function of the 'bladder' (little orange condom within a housing in the float chamber that seems to connect to a fuel line the runs to a connection on the block)." So what is...
  15. Vic.S

    My Johnson (NSFW)

    Apologies if its been posted before ... it must have been but enjoy before the moderators move or remove it. been here before, not iboats friendly. mod got here first.
  16. Vic.S

    OMC manuals. Copyright free or all owned by Ken Cook

    The following is the answer given on a UK boating forum in response to a question about obtaining owners and workshop manuals ( the same question is actually posted on this forum). "As this engine is out of service, the copyright is free. Which is why there is a thriving trade for this manual...
  17. Vic.S

    Yamaha F30C/B water in engine lube oil

    Above engine (approx 4 or 5 years old) is getting water into the engine oil. What are the likely places this could get in. Head gasket presumably must be prime suspect but are there any other likely places. Exhaust cover gasket? Gasket between cylinder block and exhaust guide? gasket between...
  18. Vic.S

    HELP with JW 10 3 HP Johnson

    See the item "Awakening a sleeping outboard" on the " Engine FAQs" Board. (Select from "the Repair and maintenance" index above)
  19. Vic.S

    1966 johnson 5hp again

    Looks like the motor with the defunct coils will end up on eBay for parts. ?30 or so each for new coils considered to much to pay. But we are also puzzled by the prop. Is it something special? Is it just bent? Is it the wrong prop that has been deliberately bent to clear the water intake?
  20. Vic.S

    1966 Johnson 5hp .. no spark

    I have just been asked for advice on this via a UK forum. suggestions include weak magnets, dodgy capacitors and one person thinks the coils are suspect. Suspect? Well and truly stuffed I think. Any advances?
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