I'm the new owner of a 1990 48' Ocean Yachts Motor Yacht. Although it's not a Sport Fish as the forum is titled, there is not a forum here under "Discussion on Yacht Builders - Motor Yachts - Ocean Yachts", and I know most of the Ocean Yachts were fishing boats. I've found this forum to be the only one where O/Y owners actually post. I have a few documents to post, along with some questions and experiences. I'm curious to how many of these 25-35 year old MY boats are out there. I was told by a former dealer there were 40 of the 48' M/Y built between 1989 and 1992 with a few different configurations like a shorter salon and an extended cockpit area, and a few extended to 53'. I'm just beginning my journey with this boat, and one of this size and age. The learning curve has been steep, as the seller and broker gave me zero information or instruction, just the key. The first few months have been expensive. Hopefully the summer will be smooth sailing!
LOL. Yep, sounds about right. Welcome to YF. Whatever they tell you could be construed as a warranty. So silence is golden. Hence why having a boat surveyed is so important. And yes boats are one of the fastest ways to get rid of your money. If you have questions hire a captain for a couple of hours to go through the boat with you. First thing I'd tell you is don't be timid about opening voids and seeing how things work and where they're located. Better now than when they break.
AND take pictures and print them all out and in a book, so you can simply look for something via pictures before opening ALL of the voids again. Unfortunately, Ocean just didn't build very many motoryachts like yours, so finding info on them is scarce.
I called the Egg Harbor Group last week and was told I'm on my own, and that they have nothing regarding the old Ocean Yachts boats. I was trying to find parts for the sliding door tracks. All 3 doors are difficult and the starboard door next to the helm totally seized on the way from Fort Lauderdale to Palm Beach, which would have been a safety hazard except that it froze open. We took it apart and back together a few times drilling and tapping new holes. That one works the best now but still sticks at the end because the track is a little bent. I'll mention one learning moment. Apparently the galley sink (and maybe because it has a disposal which I don't need) drains into the holding tank which is crazy. Of course the tank level monitor wasn't working and not realizing the holding tank was being filled by the sink, the toilets backed up and made a big mess! That would have been a good thing for the seller to mention during the sea trial. There's nothing about a boat that makes financial sense. You got to love it. I like the idea of printing pictures.
You need to plumb the galley sink directly overboard, there is NO reason it should drain into the holding tank.
Here's another thing I learned about Ocean Yachts; According to the original manual, it says not to put full weight on the keel when blocking (see attached, hopefully it's readable), but what they always do. So when I had it hauled last week there was 2 cracks on the keel draining water and with some growth. Looks like it would be right where it would be blocked. I'm having it re-glassed.
Sounds like the boat must have lived in a no discharge zone and instead of adding a gray water tank they plumbed it into your holding tank. That'll pretty much guaranty backed up toilets. Check the showers and other sinks as well. Yes go overboard (easiest) or add a gray water tank (with vent and pump out). Water drained from the keel? That sounds serious. Go over the hull and keel with a moisture meter. Those blocking instructions sound scary but right and pretty standard. In fact I'd probably recommend 8 points. (2 on each chine, 2 on the keel, 2 on the bow). Bring the jack stands tight to the chine then just bring the keel stands up to it, then lower the straps. Btw, the best cradle for any boat is the water. If a boat spends too much time on jack stands (or lifts for smaller boats) they sag and it can be death to the boat.
Blocking the keel every 5 to 7 feet and stantions every 5 to 7 feet. Never had a problem on my 48. Been blocked like this since 2013. https://photos.app.goo.gl/BAcb7nTdoEa7EA516
You can't have too many supports. That looks good although I think I'd like another set of supports closer to the bow.
I think you're right about one of the previous owners in a no discharge zone. There is a thru hull on the port side mid ship that I haven't seen anything come out of. That is probably the original drain for the galley sink. The two forward bathroom sinks and showers all go to one shower pump tank, which could be trouble.
That'll make converting back easy. Look for a Y valve. Maybe no converting back is needed. Maybe just redirecting a Y valve. The bathroom sinks sound right.
On my 96 48. The port side bathroom sink drains out through the back along with the kitchen sink and the cockpit sink. The starboard side sink and shower go to the sump Box under the port side state Room along with the port side shower. Depending on how you are set up on the starboard side behind the washer dryer there is a connection for the washing machine and forward and mid bilge pumps that all come together to a PVC connection and exit about midship I can access the starboard side fittings through the closet behind the washer dryer
I have an 1981 Ocean 42' Sunliner, which is there version of a double cabin motor yacht, which is plopped on their 42' sport fish hull. But it is a motor yacht. Look at Great Lakes Skipper for parts for your boat. Many boat manufacturers over the years use the same pre-made parts to build there boats such as Ocean, Viking, Egg Harbor, Post...the Jersey builders. You have to weed through the site for your part. Don't expect to find it or much of anything under a "Ocean Yachts'' search. I have found cabinet hinges , hatch/door catches, port lights/windows, rubrail etc. on there. They have lots of older hard to find stuff . I bet they have your door tracks. Perhaps under ''Carver" or SeaRay, etc.
So it's been 8 days and the the cracks in bottom of the keel haven't dried out yet. Would water in the bilge be getting in the keel? You would think if it that was the case any water would have drained out by now.
I was looking into a line cutter for the prop because I spend a fair amount of time dodging lobster pots in Massachusetts and Maine. The space between the prop and cutless is only 3/4 in and the Prop-Protector recommends .90 in, and the Shaft Shark recommends. .82 in. Are there thinner ones?
Unfortunately I'm a 1,000 miles away from the boat and am relying on other people for accurate information. But apparently the keel is foam cored. I looked at an exact same model boat in Clearwater, FL being sold by a guy named Bert who said he was a former Ocean Yachts dealer in NJ. He was the one who told me there were 40 of the motor yachts made. He also said they used 1" square foam blocks in the core above the water line. Below the waterline is solid so I can't imagine there would be any way that water from the bilge would get into the keel unless there is a crack.