Best advice -
1. Get the seal replaced at least every 100 hours - probably every 50 is better.
2. Learn where the seal is, how to access it, and how to tighten the jam nut. There are several threads on this board regarding that.
3. On your long trips - Carry the necessary tools with you to tighten the jam nut. You can overtighten it - it is supposed to leak a little. You must be out of the water to replace the seal and you don't find the packing material at just any hardware or auto store.
4. Learn where the bilge pump is and inspect the area around it for debris. Use your hands, not just vision.
5. Consider going to a dripless seal - I have not yet - but am considering it.
I used to leave mine in the water for the weekend and we would notice that the bilge would always be kicking out water - frequently and on a predicatable schedule. So moor where you can see the bilge exit from shore. If it runs after it has been moored for more than 10 minutes - you are probably taking on water. It does nto mean you are going to sink but deserves some attention. I don't think a bad seal is something that just suddenly starts gushing water while unattended. In otherwords - the leak through the seal should be about the same when you shut it off as it is after sitting for 20 minutes or a day. I have noticed that a leaky seal may increase leak while operating and decrease while sitting - but that is random.
Unfortunately in my 99 Mobius DD you can't see the seal coupling directly without pulling the clamshell and a small part of the floor. You might be able to see it with a flashlight and a mirror if you open the clamshell and peer back toward the shaft. Never tried that. A severe leak in the seal is very obvious if you can see the jam nut. Should only be leaking about one drop per thirty seconds - not a steady stream.
Sometimes the float switch will stick and and the bilge will never come on as the water enters the boat.
Sometimes the bilge intake may get debris around it, leaves, sludge, plastic bag, etc.. In this case the float switch may activate and continue to call for bilge but nothing gets pupmed out. So the pump runs continuously and kills the battery while the water continues to get deeper.
If you are near the boat, check ever so often to see if you are taking on water. Run the bilge manually, you should hear the pump. But remember - no water coming out can mean there is no water, or the intake is blocked. Inspect the motor well for increasing water. Listen - you may hear it. Watch the bilge water for movement.
You will never have a dry bilge unless you pull the drain plug so don't freak - but pay attention to rising water.
HTH
Dave
Last edited by BensonWdby; 04-07-2013 at 12:41 PM.
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