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View Full Version : Important Safety Notice Regarding Bilge Blowers


milkmania
04-29-2005, 11:36 PM
Now that I've got your attention........

Since I'm starting to see a lot of newer people asking advice on used MasterCraft boats

I remember back in September when I bought my boat and was checking everything out...making sure all the switches worked and all that stuff.

I turned on the bilge blower and heard it running.
it was not until after several outings that I noticed the blades of the blower WERE NOT TURNING!

it seems the propeller is pressed onto the shaft, and can come off.
the motor spins but won't pull air out of the bilge.

it fooled my mechanic also.

Leroy
04-29-2005, 11:38 PM
Great one Milkmania!

erkoehler
04-29-2005, 11:39 PM
safety first!

east tx skier
04-29-2005, 11:41 PM
For your testers, the blower exhaust is on the back of the boat, just above the rubrail. If it's working, you should feel the nice, warm, fume-filled breeze there.

Good find, Milk.

milkmania
04-29-2005, 11:42 PM
my heart dropped at the thought of my family being in the boat after I was taking precautions to evacuate the bilge from fuel vapors.

note:
fuel fumes are heavier than air, so they collect in the bottom of the bilge

milkmania
04-29-2005, 11:48 PM
yes, as east tx skier points out....
check for air flow from the back of the boat...collapsed or disconnected duct work will also prevent evacuating fumes from the bilge.

the new bilge blower in my case was $15.89 after tax....local

east tx skier
04-29-2005, 11:49 PM
My father in law has been operating with a shredded blower hose for two seasons now. I've always made a habit of opening the box when I started it, but I know the vapors aren't just floating out.

His son and I, two months ago, finally just went an bought some dryer hose and repaired it. We threw a sea strainer on it, too, just for good measure, and lubed the stearing.

Glad it didn't blow up. Ran better than ever a few weeks ago.

6ballsisall
04-30-2005, 12:19 AM
Wow thanks Milk! It makes sense but I bet without reading this I probably would have not checked it and felt ok with just hearing the blower run. Thanks man!

MarkP
04-30-2005, 12:30 AM
Yep, Thanks Brian..

erkoehler
04-30-2005, 12:53 AM
I am surprised that something hasn't been designed to prevent this from happening.

east tx skier
04-30-2005, 01:46 AM
Hey, it's plastic in a hot, enclosed space. The thing is going to warp. I just need to remember to check it from the back from now on.

Jim@BAWS
04-30-2005, 03:38 PM
For your testers, the blower exhaust is on the back of the boat, just above the rubrail. If it's working, you should feel the nice, warm, fume-filled breeze there.

Good find, Milk.

If you have FUMES you have problems. PERIOD END OF STORY.
NO GAS FUMES SHOULD BE PRESENT AT ALL.

Jim @Bay Area WaterSports.

cdewet
04-30-2005, 10:19 PM
I just fried my blower on my '85 MC. Good thing there we no sparks.....

Also, while on the topic of fumes. What size is the fuel line on an '85 MC? She sports the 351 PCM engine. 3/8" or 5/16"?

milkmania
04-30-2005, 10:22 PM
not sure what size fuel line....

but, I do know that when the blower is submerged in water.....it''ll pop the circuit breaker:o

H20skeefreek
07-21-2005, 06:33 PM
I just fried my blower on my '85 MC. Good thing there we no sparks.....

Also, while on the topic of fumes. What size is the fuel line on an '85 MC? She sports the 351 PCM engine. 3/8" or 5/16"?
it is 3/8"


sorry, just realized this is really old.

milkmania
07-21-2005, 06:38 PM
no worries....old is good too

rodltg2
07-21-2005, 07:11 PM
i just open the engine compartment and wave my hand back and forth a few times . better than any blower.

erkoehler
07-21-2005, 07:33 PM
If the fumes aren't gone after my 25 minutes tow, then I might open the engine compartment and exhaust the fumes while I put the plug in.