Search results

  1. N

    MRBF Fuse on Busbar

    I'm replacing some of my wiring do accommodate a 200 amp alternator and 4 Firefly G31 batteries. Looking at the MRBF I can't figure out why they need the MRBF fuse block to connect to the positive busbar. They would need insulation at the cable connection so the connector only contacts the top...
  2. N

    O'Day 40 Specs

    Hi All, I'm looking for the rigging specs of the O'Day 40 from boats 1 to 135. They are a slightly shorter rig than the post 135 boats but my boat (133) came with the later version in the owners manual.
  3. N

    O'Day 39 and 40 Replacement manual bilge pump

    After nearly 2 years I found a direct replacement for my cockpit mounted manual bilge pump. From what I can see from looking at other 39's and 40's on line we all have the "Kempax" K1 Manual Diaphragm Pump installed in a position readily accessed from the helm. The valves on mine had lost...
  4. N

    O'Day 40 prop shaft

    Does anyone know the prop shaft length of an O'day 40? I need to pull the hub to replace the PSS seal and I'd like to save time by ordering a new shaft and hub. If I can get the old hub off I'll keep the new one as a spare.
  5. N

    Lifting my engine

    I need to replace my motor mounts. The actual mount replacement is pretty straight forward but I have 1 question. Can I safely jack the motor up from underneath with a scissors jack? I have some plywood to spread the load, the engine pan should be OK, but what about the bottom of the boat...
  6. N

    Water tanks

    Has anyone else had 2 broken water tanks. I've just bought this boat and the first surprise issue is leaking water tanks.:eek: Both of them are leaking at the centre baffle. Has anyone else had this happen and fixed them? Neil Ramsey O'Day 40
  7. N

    O'Day 40 Portlights

    I want/need to replace all of the opening portlights on my '86 O'Day 40. I have a mix of Gray and Beckson. Is that normal or have some been replaced? Has anyone replace some or all with Bomar 2000 aluminium?