2017 RT 25SC Drains in Engine Compartment

[DenverReds]

I recently completed a 300 mile trip from Santa Barbara to San Francisco. On the first leg of my cruise (4 hours to COJO Bay) I checked the engine compartment and found water streaming through a port and starboard drain hole into the bilge. Picture of drain hole attached. The hole in question has a small debris trail. Are the holes on port and starboard designed to drain water from another part of the hull into the engine room presumably so the bilge pump can remove the water?

 

[Rode Trip]

That's a limber hole, designed to allow water to move between compartments. Sometimes it's for allowing water to leave the space between the hull and the liner. The photo is a little too close up to tell where in the boat it is or what compartment it is draining from.

 

[S. Todd]

"Water Streaming" sounds serious. But if it was just for a short period of time, I would agree with the post by Rode Trip that the limber holes were properly doing their thing and allowing water to drain from other places where it had accumulated over time due to rain, washing, condensation, or whatever. Sometimes getting up on plane and changing the angle of the boat from sitting at rest is just what you need to drain these places.

 

[DenverReds]

That's a limber hole, designed to allow water to move between compartments. Sometimes it's for allowing water to leave the space between the hull and the liner. The photo is a little too close up to tell where in the boat it is or what compartment it is draining from.

Wonderful to know! Thank you

 

[DenverReds]

"Water Streaming" sounds serious. But if it was just for a short period of time, I would agree with the post by Rode Trip that the limber holes were properly doing their thing and allowing water to drain from other places where it had accumulated over time due to rain, washing, condensation, or whatever. Sometimes getting up on plane and changing the angle of the boat from sitting at rest is just what you need to drain these places.

I observed the stream of water after a 4 hour cruise at 10 12 knots in pretty choppy conditions and after the boat sitting for roughly a month before my departure - so your explanation makes a lot of sense. The water stopped draining after a while which tells me it might have been collecting in other parts if the hull for over a month in addition to the seawater spray over the bow during the cruise to COJO Bay. Thank you

 

[Chimo]

I believe those two are on the port side and they are doing what you deduced. There is a limber hole on the starboard side designed to do the same thing. Make sure these are kept clear bu using a length of wire occasionally. Check for water in the starboard locker after, where the transducer is mounted. That is supposed to flow forward and out of the aforementioned limber hole but it doesn’t happen completely. You may have overflow water coming from the relief valve of the water heater. To avoid this turn off water pressure and open the hot faucet when underway. It’s not a problem, just physics. You have a closed system and PV/T is a constant.

 

[DenverReds]

I believe those two are on the port side and they are doing what you deduced. There is a limber hole on the starboard side designed to do the same thing. Make sure these are kept clear bu using a length of wire occasionally. Check for water in the starboard locker after, where the transducer is mounted. That is supposed to flow forward and out of the aforementioned limber hole but it doesn’t happen completely. You may have overflow water coming from the relief valve of the water heater. To avoid this turn off water pressure and open the hot faucet when underway. It’s not a problem, just physics. You have a closed system and PV/T is a constant.

Thanks. Thecstarboard limber hole is blocked so I’ll work on clearing it this week! What a relief to know these limber holes are engineered to drain into the bilge….