Re: water in bilge.
I think you misunderstand what I was trying to say.<br />If you get in a boat, on the water, you need to have an automatic bilge pump of some kind. You never know when a hose breaks and the engine raw water pump just starts filling the boat full of water, or something else breaks.<br />Not only can't you hear it, but you can't see it either because the engine hatch is closed. At least an automatic bilge pump will try to keep up till you notice it.<br />And 50 gallons of water is a lot of water in the back of a boat. That would be over the starter and possibly the alternator on some boats. So do yourself a favor and put in some kind of automatic bilge pump. Who knows, you may even forget to put in the bilge plug someday. And if tied to the dock, you will eventually hear the pump output hitting the water.<br />Now, as far as you bellows goes. In order for the water to get into the bilge it has to go through the intermediat bearings in the bellhousing. That means the grease has washed out of the bearings and they are rusting as we speak. The only way to replace the bearings is to remove the bellhousing from the engine and pull the shaft from the bellhousing and replace the bearings and reinstall the bellhousing. Yes, you have to get the engine out to do this. You also need to replace the u-joints that are now full of rusty water. If you check, you will also find the drive full of water also....You guessed it, more rusty bearings and gears. <br />Assuming the drive is ok, and all you need is to reseal the input shaft on upper gear box because the seal surface is exposed to water an is rusting and damaging the seal and hopefully the water mixed with the drive oil and didn't do any damage to the gears or internal bearings the job should only be around $3000 to $5000 if done by a certified Volvo dealer. I know this, cause I am one.