Search results

  1. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    But which sea water or coolant? The pump running the closed system is your normal water pump similar to a car, all metal. It can leak but cannot really stop pumping if there is coolant to pump.
  2. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    Raw water impeller looked fine. Blades undamaged and flexible.
  3. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    OK - I think it's slightly more complicated. I am not running the boat except to test it. Then read the codes. Pulled raw pump. Looked fine. Blades very flexible and no damage. So the build sheet from this 2011 Chaparral boat says the engine is a 5.7GiC-300-J Serial number #A127622. The...
  4. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    I was remembering that I recently had two mechanics work on the shift control and shift cable. One was not very good. I found the power to the fuel pump unplugged. So I was thinking maybe the engine was turned over enough to ruin the raw water pump. Maybe even briefly started.
  5. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    Well it is what it is with respect to catalytic converters. I will go down do the boat with an IR thermometer and a new raw water pump and verify the cooling system to determine for sure if a full system or not.
  6. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    So I tested this engine on muffs a few months ago. It did not get any red triangle alarms. But cannot remember how long I ran it. Could water pressure from a garden hose make up for a marginal sea water pump?
  7. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    I looked at the parts diagrams for both the FWC and RWC engines. And it looked to me that the closed cooling was both engine and exhaust manifold. They have thermostats on each side of the exhaust for the cooling water. In addition to normal engine thermostat. What are they for?
  8. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    So I was thinking the risers get cooled with coolant like the engine and exhaust manifold with a full FWC but I think I am mistaken and the risers are always cooled with sea water whether RWC or FWC. The 441 DTC says exhaust manifold temperature but maybe they consider the riser to be part of...
  9. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    V8-300 C-A. Serial number is A254685.
  10. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    Remember both exhaust manifolds were almost the same temperature. Hard to believe both would be equally clogged.
  11. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    It's factory FWC so I believe a full system not just the engine.
  12. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    It's a 300 C-A.
  13. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    So this is a factory FWC engine. The coolant should be circulating through the engine and exhaust manifolds and riser right? Should be close to same temp. The sea water should be dumped into the exhaust at back end of riser I thought? Sea water should not be cooling the exhaust manifolds or...
  14. D

    2012 VP 300 C-A Exhaust manifolds getting too hot - DTC 441 & 442

    Trying to get my boat working properly this summer despite several setbacks. Started the engine and after about 10 minutes idling at the dock I heard a couple of alert beeps a minute or apart. Then continuing beeps. Turned off the engine and used my Diacom to read the codes. DTC 441 and 442...
  15. D

    VP DPS-A OXI outdrive with DTC=713

    I went to my boat today to reset the Ocean-X. I found the Diacom has an option to reset the Ocean-X and used it. No active code after I reset the Ocean-X.
  16. D

    Risers getting very hot

    I have also seen were too much Black Permatex was used so seal the exhaust manifolds and/or riser and some oozed into and partially blocked the water passages.
  17. D

    Risers getting very hot

    You typically have one water pump that pumps sea water towards the engine and another water pump that pulls in some of that water and via a thermostat circulates water through the block. Not sure if you can do it all with a single pump. Something like a Mercruiser Alpha One has one water pump...
  18. D

    Risers getting very hot

    So over time the water passages in the exhaust manifold and risers rust from fresh water and/or get corroded by salt water and need to be pulled and inspected, then maybe cleaned or replaced. While they can last awhile in fresh water like a lake they don't last very many seasons in salt water...
  19. D

    Risers getting very hot

    FWC is fresh water cooled. Engine coolant is in the block and exhaust manifold & riser. Heat exchanger moves heat from the engine coolant to sea water flowing through the heat exchanger. RWC is raw water cooled meaning sea water flows through the engine block, exhaust manifold and risers to...
  20. D

    VP DPS-A OXI outdrive with DTC=713

    Thanks that is just the kind of info I needed. I did read some info on reset of the Ocean-X module but thought that was done by pulling a cable at the Ocean-X module and not at the drive gear oil sensor. The serial number from the plate on the outdrive is A128534. The product number is...
Top