1999 Post 50 MTU 8v183 New to Forum - Few questions.

Hose clamps unusually don't just get loose. They can break if neglected and rusted.

Coudl be anything. You re going to fing a way to look up close. When I can't reach something for a close look, taking a picture for video with a phone helps. If you have a go pro you can use that while watching the preview live on a tablet.

Couple of weeks ago while crossing over I got a low coolant warning on one our C32s just as I entered the Marina to clear at Cat cay. Finished docking and checked the ER, had coolant sprayed all over the stbd engine... Turned out to be a pin hole in a small coolant hose to one of the turbos. Some rescue tape, a piece of hose split and a clamp got us going rig away till I was able to get a new hose over. I had to start the engine to find the pin hole... It was invisible without pressure

No doesn't ring a bell. Miami is a big city

I know the boat and maintain the Blue hulled 62' Sunseeker predator a few slips past it. I've never been on it, but seems like they did a lot of work to it over the past year or two. It was a good looking boat.

Not sure where your coolant leak is coming from without seeing it. You're going to have to see where it's leaking from. Could be something simple, could be something expensive. I've only run 1 set of 8v183's in my life, we put I think it was 450 hours on them in a year. They had 350 hours when I first met them about 5 years ago, and ran into some EXPENSIVE things to fix with them....one was an exhaust gasket, access was poor, removal of everything was complicated and expensive to fix. I've run lots of 12v183's which is the same motor, just 4 more cylinders. They ran smooth and quiet, but were a little smoky/sooty fuel burn was around 60 gph at 2000 rpms.

If you have the ZF tranny, remove the scraper completely and clean it, if it's equipped with the scraper, and re-install. If it has a tranny filter, replace that, and replace the oil in it. That is where I'd start.

8v183's burn 60 gph at 1950 for the pair..... 65 gph at 2000. I've only run a 50' Post with 820 mans (would be preferable to me). It cruised at 26.5 knots at 1950 rpms and 60 gph..... Boat rode good, very stable running and very stable on the troll, a little on the wet side.....

No, updated service is pulling the injectors/nozzles and injector pump and having them checked/rebuilt. It also includes re-adjusting valves, and doing all the coolers. Have a professional do that.

The set I ran, I cruised at 2000 rpms, which is where they seemed to love to run. Burned 55 gph at that speed. So your figures should be entirely possible.

I have a customer with a 2001 50' Post with 10 cylinder 820's. The motors have 6,000 original hours on them. He just had the heads redone because they couldn't pull the injectors out of them in place. Motors have never been rebuilt and still run very good. Boat cruises at 27 knots at 1950 rpms. The ideal combination IMO is the 50' with the 820 Man's. He burns 55 gph at that speed. I don't think they built any 50's with 1050 HP mans.