" Hi,
My 86 L6 115 merc
" Hi,
My 86 L6 115 merc recently managed to eject all the gear lube in the lower unit, leaving only a couple ounces of water inside, mixed with black dust. It took a couple flushes and some use to get the dust out, but now after a day of use on new lube, it comes out full, clean, and creamy from the water. I first noticed it because the prop was not spinning very freely in neutral; now, after adding lube and running it, the prop spins freely in neutral and even stays put when running it on a flush attachment.
I have a few questions about it, the first is whether a lower unit can take this type of abuse, and if fixing the seal is a sound way to correct the problem. The second is what other lower units can be swapped, will any L6 work, and how about the L4's and V6's ?
Lastly, I have removed the lower unit and stripped out the water pump down past the base. The leak is coming from around the driveshaft. The water pump is the type with three studs and a bolt. I can see a rubber seal inside of the water pump base, it doesn't look quite right; there is also a seal around the driveshaft, inside of a a large (2 inch) nylon looking bushing (could be a washer). I though this bushing was removeable, but it doesn't want to budge and the seal inside of it appears to be messed up as well. I'm wondering how I should go about removing this, and what may have caused these seals to fail. Thanks in advance for any/all advice,
Jon "
My 86 L6 115 merc
" Hi,
My 86 L6 115 merc recently managed to eject all the gear lube in the lower unit, leaving only a couple ounces of water inside, mixed with black dust. It took a couple flushes and some use to get the dust out, but now after a day of use on new lube, it comes out full, clean, and creamy from the water. I first noticed it because the prop was not spinning very freely in neutral; now, after adding lube and running it, the prop spins freely in neutral and even stays put when running it on a flush attachment.
I have a few questions about it, the first is whether a lower unit can take this type of abuse, and if fixing the seal is a sound way to correct the problem. The second is what other lower units can be swapped, will any L6 work, and how about the L4's and V6's ?
Lastly, I have removed the lower unit and stripped out the water pump down past the base. The leak is coming from around the driveshaft. The water pump is the type with three studs and a bolt. I can see a rubber seal inside of the water pump base, it doesn't look quite right; there is also a seal around the driveshaft, inside of a a large (2 inch) nylon looking bushing (could be a washer). I though this bushing was removeable, but it doesn't want to budge and the seal inside of it appears to be messed up as well. I'm wondering how I should go about removing this, and what may have caused these seals to fail. Thanks in advance for any/all advice,
Jon "