Logo
FULL SITE MENU

Recent content by DSAT04

  1. D

    Honda BF40A overheating

    A Quintrex 435 Coast Runner, aluminium boat. When purchased new, the boat and motor were packaged together. The 40hp is the maximum recommended HP for the model of boat.
  2. D

    Honda BF40A overheating

    Hi All, thank you for your help with the overheating issue. Now that the overheating issue is fixed I have another issue... With two people and some fishing gear, cruising at 5000rpm (according the tachometer) the boat is only doing 15kmh per hour. WOT 6000rpm, the boat only reaches 19-20 kmh...
  3. D

    BF25 loses power when under a load

    It sounds like you have already spent a bit of money, that sounds familiar. After the back and forth I had with so called (qualified mechanics) and paying a premium for their expertise. I got more helpful advice from the folks on this forum. Which led to me and a mate fixing the overheating...
  4. D

    Honda BF40A overheating

    Hi All, good news... I have fixed the overheating issue. I just come home from an hour long test run of the engine. The engine ran constantly at 4500 - 5000rpm and no alarms. Tell tale was constant. I even took it to WOT (6000rpm) briefly and no alarm. I believe that the issue turned out to be...
  5. D

    Honda BF40A overheating

    I back flushed the engine, no issues there. Water pump parts arrived. I have fitted them and put the bottom end back together. Tested in a flushing tank, the tell tale was stronger. I will put the boat in the water and see how it goes. I am hopeful but not confident that the overheating issue is...
  6. D

    Honda BF40A overheating

    Thanks for the advice. I think I will only check the water flow while it's in the flushing tank. I will put the boat in the water to put it under load.
  7. D

    Honda BF40A overheating

    Yes, the heat damage to the housing is hard to see in the photo. The damage to the centre hole of the cup is easier to see. I don't think I will try and load it up while in the flushing bin. I will only check the water flow, then take it down to the boat ramp (it's only a 5 minute drive away) to...
  8. D

    Honda BF40A overheating

    As the engine only goes into overheating mode while in gear and under load. Is it safe to load it up while it is in the flushing tank? Picture of the damage to the cup and housing
  9. D

    Honda BF40A overheating

    Also meant to ask... I don't have vinegar but I have some salt away. Will this work?
  10. D

    Honda BF40A overheating

    As the engine only goes into overheating mode while in gear and under load. Is it safe to load it up while it is in the flushing tank?
  11. D

    Honda BF40A overheating

    Thanks mate for your support and advice. I have made a tank out of a rubbish bin. As you say, far superior way of flushing. While I have the bottom end off, I will back flush the system. I have checked the water tube for looseness or if it is out of alignment, it is good no issues there. Just...
  12. D

    Honda BF40A overheating

    Thanks for your support and advice. Just waiting for parts to arrive.
  13. D

    Honda BF40A overheating

    Hi all, I pulled the bottom end off of the leg yesterday in preparation for the new water pump parts arriving. On closer inspection of the impeller and housing...the impeller looks ok but the housing appears to be scorched and melted in places around the edge of the cup and inside the centre...
  14. D

    Honda BF40A overheating

    Thanks, I only replaced the impeller. However, I have ordered the whole kit so I will replace it all when the parts arrive. Cheers
  15. D

    Honda BF40A overheating

    Thanks for the advice, I will be having a look at the water tube.
See more
Back
Top