CD 28 Flybridge cruiser questions

[Jack Bentley]

Just returned home to NC after 500 mile trip with my FB Cruiser (1991, Hull #221) that I purchased in NJ. The boat has the Volvo turbo 200hp engine. Two questions came up on the trip home.

First is the engine smokes tooo much. Uses no oil, oil analysis good, compression good. I'm told they all smoke, but then the engine service manual says excessive smoking means the turbo charger needs rebuilding. Any advice on this will be appreciated. With 500 hours, why would the turbo charger need to be rebuilt? I surely don't mind spending the money to have it rebuilt but will it need it again in another 500 hours?

Second is that the boat scats. It easily runs 15 knots. If I, as an old sailor, prefer to cruise at 7 knots (2000 rpm), will I damage the engine? The manual says cruising rpm is 200 less than max of 3900! I don't want to go that fast!

I love the boat. Any comments on these two matters will be appreciated.

Jack



k4imk@pamlico.net

[Edd]

Just returned home to NC after 500 mile trip with my FB Cruiser (1991, Hull #221) that I purchased in NJ. The boat has the Volvo turbo 200hp engine. Two questions came up on the trip home.

First is the engine smokes tooo much. Uses no oil, oil analysis good, compression good. I'm told they all smoke, but then the engine service manual says excessive smoking means the turbo charger needs rebuilding. Any advice on this will be appreciated. With 500 hours, why would the turbo charger need to be rebuilt? I surely don't mind spending the money to have it rebuilt but will it need it again in another 500 hours?

Second is that the boat scats. It easily runs 15 knots. If I, as an old sailor, prefer to cruise at 7 knots (2000 rpm), will I damage the engine? The manual says cruising rpm is 200 less than max of 3900! I don't want to go that fast!

I love the boat. Any comments on these two matters will be appreciated.

Jack

Jack try: http://boatdiesel.com/Forums/Conf_Threa ... &un=62ef80



Erogers711@AOL.com

[Walt Bilofsky]

First is the engine smokes tooo much. Uses no oil, oil analysis good, compression good. I'm told they all smoke, but then the engine service manual says excessive smoking means the turbo charger needs rebuilding. Any advice on this will be appreciated.

I had a soot problem for many years on my CD 30 powerboat. My personal guess is that anything that puts a bit more load on the engine will result in soot. I have not seen transom soot since having my shaft coupling refaced, so it's possible that was the cause of the problem on my boat. See the link below for more details.

Second is that the boat scats. It easily runs 15 knots. If I, as an old sailor, prefer to cruise at 7 knots (2000 rpm), will I damage the engine?

From what I have read, diesels prefer to run at their designed operating speed. However, pleasure boat use puts relatively few hours on diesels compared to what they are capable of, so I doubt that running at 7 knots will hurt the engines. That's where I run my boat unless I'm in a hurry.

However, running at idle for long periods can polish the cone clutches on the MS4 transmission so they become reluctant to go into gear. If you are going real slow for a long time, I'd suggest pushing the RPMs up a hundred above idle.

Enjoy your boat.

- Walt Bilofsky



bilofsky@toolworks.com