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The engine room fireboy, in my 2000 4788, has lost some pressure over over the years and needs to be replaced. The existing Halon can no longer be used and the replacement Fireboy is twice as tall as the original and won't fit in the same space. Has anyone had experience with this and what solutions did you find?
Not to be demeaning...does the manufacturer offer any help?
Greg
Newport, Oregon
South Beach Marina
1986 3270 with twin 110 HP Hino diesels. Name of boat "Mr. Darcy"
Past work history: Prototyping, tooling, and repair for Reinell,. General fiberglass boat repair starting in 1976.
Also worked as heavy equipment mechanic, and machinery mechanic for over 30 years.
Where are you? Contact a local industrial fire extinguisher distribution outfit like AAA in Seattle. You may need to change a remote or indicator, but there are more options out there, just different brands. They are all using an agent that is the replacement for Halon which was a second cousin to fluorocarbon so made the list of no longer allowed.
P/C Pete
Edmonds Yacht Club (Commodore 1993) 1988 3818 "GLAUBEN”
Hino EH700 175 Onan MDKD Genset
MMSI 367770440
As I understand it from reading information provided by the NIST, Halon needs to achieve a minimum of 8% saturation of the ambient air in the space in which it is used to be effective. If the smaller bottles can each achieve that minimum it should work. Or if the bottles can be triggered simultaneously it would work even better than one at a time. It seems to me that, as was mentioned, an industrial fire prevention company could manifold two smaller bottles to trigger simultaneously.
Greg
Newport, Oregon
South Beach Marina
1986 3270 with twin 110 HP Hino diesels. Name of boat "Mr. Darcy"
Past work history: Prototyping, tooling, and repair for Reinell,. General fiberglass boat repair starting in 1976.
Also worked as heavy equipment mechanic, and machinery mechanic for over 30 years.
ksanders, is your system the older liquid Halon or the newer compressed gas type?
Greg
Newport, Oregon
South Beach Marina
1986 3270 with twin 110 HP Hino diesels. Name of boat "Mr. Darcy"
Past work history: Prototyping, tooling, and repair for Reinell,. General fiberglass boat repair starting in 1976.
Also worked as heavy equipment mechanic, and machinery mechanic for over 30 years.
Do not vent that Halon, the North Slope oil fields buy Halon from shops that re-fill with the new extinguisher versions, it is worth money and we do not want to see it vented.
I have a huge Halon bottle in my engine room, left over from when my boat was a command boat during the Alaska oil spill.
It still holds it's Halon pressure.
Pat says: DO-IT-RIGHT THE FIRST TIME!
Bayliner 3870 "ALASKA33)
Twin 350 GM power
Located in Seward, AK
Retired marine surveyor
"ksanders" post=828334 wrote:
I do not have a photo, but we were able to put the fireboy unit laid down on its side on the port side outside the engine, at the aft end.
The nozzle is just a bit outboard of the port transmission.
I would research this before installing. My boat came with a larger halon Fireboy ( I think a 700) that was empty.
I sent it to Fireboy for hydro and refill. They told me this model couldn't be installed on it's side or it would leak. So I had to change it to to a vertical mount.
"ksanders" post=828334 wrote:
I do not have a photo, but we were able to put the fireboy unit laid down on its side on the port side outside the engine, at the aft end.
The nozzle is just a bit outboard of the port transmission.
I would research this before installing. My boat came with a larger halon Fireboy ( I think a 700) that was empty.
I sent it to Fireboy for hydro and refill. They told me this model couldn't be installed on it's side or it would leak. So I had to change it to to a vertical mount.
Mine was rated for horizntal installation. It came with a nice instruction manual and a nice cradle for horizontal mounbting. :-)
Thanks for the info! My big problem as I look at the port side engine room is how will I get it there! I talked with fireboy and the unit is ok horiz but i am old and kinda fat! did you mount it to the deck? Any details you can provide are greatly appreciated! Nothing beats experience.
"vpool" post=828776 wrote:
Thanks for the info! My big problem as I look at the port side engine room is how will I get it there! I talked with fireboy and the unit is ok horiz but i am old and kinda fat! did you mount it to the deck? Any details you can provide are greatly appreciated! Nothing beats experience.
Thanks for your help - Bob
What I did was to put it forward of the port engine, then push it down the length of the engine on the outside.
I was easier than it sounds. Then I just mounted it to the floor using big screws.
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