boater3500
Member
- Joined
- Feb 2, 2008
- RO Number
- 29346
- Messages
- 62
Any recommendations for replacement bilge blowers for a boat with Merc 8.1H's? My current ones are so nosiy, they are driving me crasy, not to mention the passengers. Thanks!
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Bilge Blowers
- Thread starter boater3500
- Start date
- Joined
- Jun 4, 2001
- RO Number
- 4846
- Messages
- 3,913
Jabsco/ITT Par blowers are the best solution for me.
http://www.boatfix.com/bypage2index.asp?page=642
http://www.boatfix.com/bypage2index.asp?page=642
The squirrel cage type like Robyns Nest suggests are much quieter than the inline/tunnel/turbo type. But they may require a little more power & tend to corrode and fail more rapidly also.
I only run blowers before every start. That's when I want to be able to hear both of them.
I only run blowers before every start. That's when I want to be able to hear both of them.
if you mount the squirel cage type noted by others on a 1/4" sheet of rubber, bend it so it stands proud of the bulkhead and secure it like that you will acoustically isolate the blower and it will be nearly silent save the noise the air makes as it exits to the outside air. you'll be amazed what a difference the mounting will make. the key is not to allow the vibration from the motor to be transmitted to the structure of the boat.
- Joined
- Jan 1, 2000
- RO Number
- 1702
- Messages
- 1,621
Mount your blowers on rubber hoses.
boater3500
Member
- Joined
- Feb 2, 2008
- RO Number
- 29346
- Messages
- 62
Thanks! Questions:
___________________________________
"...1/4" sheet of rubber, bend it so it stands proud of the bulkhead and secure it like that you will acoustically isolate the blower and it will be nearly silent.."
what is meant by "bend it so it stands proud of bulkhead?
_________________________________
"Mount on rubber hose" like garden hose?
Thanks again
___________________________________
"...1/4" sheet of rubber, bend it so it stands proud of the bulkhead and secure it like that you will acoustically isolate the blower and it will be nearly silent.."
what is meant by "bend it so it stands proud of bulkhead?
_________________________________
"Mount on rubber hose" like garden hose?
Thanks again
- Joined
- Jan 1, 2000
- RO Number
- 1702
- Messages
- 1,621
3500: I use standard water heater hose with bologna sliced ends.
quote:
Originally posted by Shadowcruzr
3500: I use standard water heater hose with bologna sliced ends.
bologna sliced ends?
- Joined
- Jan 1, 2000
- RO Number
- 1702
- Messages
- 1,621
Cut at an angle, but I think I used the wrong term...
on the sheet of rubber, use a sheet that is approx twice the lenght of the mounts on the blower. mount the blower in the middle of it. then attach one of the long ends to the bulkhead, then push the opposite end towards the first bulkhead mount. the blower will then be held off the bulkhead and hanging completely by the rubber. then secure the second side of the rubber sheet to the bulkhead. the key is to get the sheet where the motor is mounted to be free of contact with anything but the flexible portion of the sheet of rubber. although the hose method helps alot the ruber hose is generally not as flexible as the sheet and therefore will transmit some of the noise/vibration back thru to the bulkhead. either method is a huge improvement over direct mount.