dbsea
Well-known member
- Joined
- Oct 1, 2021
- Messages
- 1,063
- Fluid Motion Model
- R-23 (Outboard)
- Vessel Name
- HALCYON
- MMSI Number
- 368365270
BB marine":1alb8vkv said:dbsea":1alb8vkv said:I've wondered about this for my D6-435 as well, as I don't see any sort of fresh air ventilation into the engine compartment. Is that actually the case, or am I missing something? That seems preposterous...
That was my thoughts too back in 2017 when I made a trip in my boat and found that the compartment temperature exceeded 160F where my engine air intake was located. My alternator was operating over 200F and my waste tank with waste in it was at 140 F causing a bad odor in the bilge. I thought that the vent hoses were restricted. When I checked the vent hoses I found that there were none. I have started many threads about this. The only ventilation is the air gaps between the cockpit liner and the hull. Basically the engine is the exhaust blower. I was on board a R29 that the engine was starving for air. The drain through hulls at the transom were pulling air into the compartment. Unfortunately the exhaust from the engine was being pulled in too. There was soot all around the hatch trough drains. Poor design, maybe that’s why they are building boats with outboards!! :shock:
Good to know, thanks. Thankfully my blackwater tank is forward under the berth, so no issue with that. I have a temp sensor in my engine compartment so I will monitor it, and consider some of the venting you did and see if it can be leveraged for my C30-CB.