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Bilge and blower not working

Posted on 7/13/21 at 2:05 pm
Posted by Mer Rouge
Dominion Republic
Member since Oct 2006
316 posts
Posted on 7/13/21 at 2:05 pm
How dangerous is running an inboard outboard when neither the bilge or blower is working. It's not a fuse but that is as far as I can trouble shoot.

I'm not worried about sinking but catching the boat on fire does worry me.

Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
66763 posts
Posted on 7/13/21 at 2:13 pm to
I would never run a gasoline powered boat without a blower. Major blow up potential there.
Posted by Mer Rouge
Dominion Republic
Member since Oct 2006
316 posts
Posted on 7/13/21 at 2:52 pm to
That's what I was thinking. The wife and her friends are bummed I'm not letting them run around in it today. Thanks for the confirmation.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
66763 posts
Posted on 7/13/21 at 2:58 pm to
Thats textbook way to explode a inboard gasoline powered boat.
Posted by pjab
Member since Mar 2016
5643 posts
Posted on 7/13/21 at 3:39 pm to
Figure out what’s the common connection and trace from there. Where do they join? Spliced together or connected to a bus? I’m assuming they have different switches so I wouldn’t think the switches are the problem. Are the other accessories on the shared switch plate functioning?
Posted by Mer Rouge
Dominion Republic
Member since Oct 2006
316 posts
Posted on 7/13/21 at 3:46 pm to
Yes they are on different switches. Everything works including gauges, radio and light switch. The bilge and blower switches are farthest to right on the panel.
Posted by lotik
Member since Jul 2018
323 posts
Posted on 7/13/21 at 3:50 pm to
Do you have a multimeter or test light? Check for power at each and then at the switch. That should tell you where the issue is. Also confirm good ground for both.
Posted by Mer Rouge
Dominion Republic
Member since Oct 2006
316 posts
Posted on 7/13/21 at 3:57 pm to
Thank you! I will check that and go from there.
Posted by back9Tiger
Mandeville, LA.
Member since Nov 2005
14130 posts
Posted on 7/13/21 at 4:07 pm to
Blower is a much bigger issue (unless you take on water of course). I would recommend against running it until you get it fixed.
Posted by keakar
Member since Jan 2017
29868 posts
Posted on 7/13/21 at 6:29 pm to
bilge is to prevent sinking and you can keep an eye on that yourself

the blower keeps explosive fumes from building up and going boom! if you can remove/open the engine compartment so airr can circulate as you go you should be fine but if you arent 100% sure then hot wire the blower to run constantly straight from battery

FYI 90% of all electrical issues are from bad ground connections so check those first
Posted by STATigerFan
St. Amant, LA
Member since Sep 2019
123 posts
Posted on 7/13/21 at 7:48 pm to
You should have circuit breakers under each switch. That’s how mine is set up. Maybe they need to be reset? When I first got my boat last year the bilge pump was locked up and the float switch didn’t work. They were very easy to replace, maybe around $60-$70 for the switch and the pump. The bilge pump also has a fuse right next to the battery, that was blowing because the pump was locked up.

Haven’t had to trouble shoot the blower in mine since I haven’t had trouble with it yet so I can’t help you there. If you can’t get it working on the stock wiring I’d just run a new wire and fuse to it straight from a constant power source. Try to use the stock switch but it could be bad too.
Posted by armsdealer
Member since Feb 2016
11494 posts
Posted on 7/13/21 at 9:07 pm to
I don't know how yours is set up, but my buddies can be propped open to run and has instructions on what to do if the fan isn't working. I think it was more of an emergency thing, but it works. This is on a pretty big boat with some big block V8 so different boats might not have the prop open vent deal.
Posted by Flats
Member since Jul 2019
21682 posts
Posted on 7/14/21 at 8:36 am to
quote:

How dangerous is running an inboard outboard when neither the bilge or blower is working.


Actually running without a blower isn’t too bad, but cranking it can be quite exciting. Panama City lost half its marina to a fire when I was much younger because someone didn’t understand IB/OB engines.
Posted by deltaland
Member since Mar 2011
90484 posts
Posted on 7/14/21 at 12:19 pm to
Open up the engine compartment for 30 seconds then crank the engine

Bilge not a big deal unless your boat takes on a lot of water. Does your switches have those circuit breaker resets on them? Also get a test light check for power to the switch then flip it check for power coming out of the switch. Use light to trace the problem from battery to switch to the pump itself. Probably in-line fuse, bad switch, or bad connection on battery.
Posted by deltaland
Member since Mar 2011
90484 posts
Posted on 7/14/21 at 12:20 pm to
I’ll be honest I probably forget to hit the blower 75% of the time on my boat

Also I think the level of risk without a blower depends on the age and type of motor.

A newer engine that’s fuel injected and has good seals around the fuel tank and fill cap is less likely to accumulate a lot of fumes while older ones with carburetors will get a ton of fumes. Also type of fuel matters. 87 with ethanol just isn’t as strong as a higher octane or non ethanol fuel. You can spill 87 with ethanol on your jeans and not even smell it these days you
This post was edited on 7/14/21 at 12:31 pm
Posted by Mer Rouge
Dominion Republic
Member since Oct 2006
316 posts
Posted on 7/14/21 at 1:05 pm to
Thanks for all the information. I trailered it and a mechanic is going to take over. I seem to make things worse when I try to fix them.
Posted by shawnlsu
Member since Nov 2011
23682 posts
Posted on 7/14/21 at 2:27 pm to
quote:

Actually running without a blower isn’t too bad, but cranking it can be quite exciting.

This
open the cover and let it air out for 10-20 seconds, start the boat, once moving it will air itself out. I never ran my blower after I started my old in/out boat.
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