[Bill Desmarais]

What are you using for oil ?

I’m going to clean the big airsep filter on the QSB in a few weeks.

Do you buy the Racor cleaner kit ? Or ?

 

Thanks, Bill D

[Bill Desmarais]

100% freshwater hose blasting away through the T adaptor with engine seacock “closed in the video” and engine running. About halfway through the season I flushed with seacock “open”. It was a bugger reaching down and closing the 2″ seacock and then re-opening.

I also think the zincs look normal.

Prop shaft & rudder zincs (Godfrey brand, not cheap Camps) about 70% consumed, no complaints.

The proof of the results will be seen when I service the after cooler after three full season of usage. 

Stay tuned. 

[Bill Desmarais]

Cummins 5.9s are not know to have oil pressure issues.

What was the oil level in the affected engine when you got back to the dock ?  

[Bill Desmarais]

Tom,

I’ve serviced the same after cooler as yours on my engines for the past 15 years the Seaboard way.

I service the coolers every three years. This is after making sure the cooler is greased up the Seaboard way to begin with. The more grease the better IMO.

I pressure tested the first one serviced with my own made up pressure test contraption.

Since the first one serviced,  I have not pressure tested since.

And have not had any issue with mis-assembly.

Follow  Rob & Tony’s suggestions and use plenty of Alco-MetaLube.

 

[Bill Desmarais]

Certainly can’t complain about the 6.7 though. Plus 5,000 hrs. 

I have the 27 H&H, smaller bro of the 29, with a QSB 5.9 480….

The H&H line of downeast boats are very good keel boats 

Good luck with fixing your engine control issue. 

Regards, 

Bill D

 

[Bill Desmarais]

one more question?

When running on the engine (no generator or charger) is there an isolator between the alternator and both start and house battery banks to keep both banks charged ?

[Bill Desmarais]

Quantum Double/Double between the twin fuel tanks and the QSB 5.9 480.

From launch of boat after repower with the QSB.

Clean tanks 

 

[Bill Desmarais]

This is the QSB 5.9 480 at cruise speed (21-23 mph) last week in my lobster boat (propped max weight to 3440 confirmed).

Always a steady 176F,  2470 rpms, burning 10.5 gals/hr @55% load.

As suggested, a thorough go through of the SWAC and quickly figure out if the engines are cruising in an overload condition.  As Rob suggestioned I’d be no more than idling the engines until resolved 

Hate to see engines burned up needlessly as I did once to a 6BTA 370 many many years ago. 

[Bill Desmarais]

Your exhaust looks well designed.

 

Tony’s crew built the custom exhaust for my QSB 5.9 480 lobster boat install. All from 3,000 or so miles away ! 

17″  above the static water line

gravity drain at dock   

[Bill Desmarais]

As stated…not much too it.

Remember not to over torque the nut that screws the cap on. 

Yes the end caps are the raw water side of the heater exchager.

If you remove the whole heater exchanger from the engine than you’ll be draining anti-freeze coolant.

btw, I used the distal end hx cap to pickup the water source for the PSS shaft seal on my 5.9 480

[Bill Desmarais]

There must be thousands of boats on the water that will need to upgrade from Tier I to Tier III.

There will be a bonanza in engine sales and replacements.

 

[Bill Desmarais]

Back ten years ago or so I owned three brand new 6BTA 370s with gears.

Obtained by  Seaboard Marine and “tricked out”  before shipping to me.

All three had the fuel coolers removed, Envirovents installed, idler pulley upgrages and greased after coolers from Seaboard.

All three were under propped from hour number one.

I boat up in the northeast with cold waters.

Each of the three 6BTAs from new had very light sheens of fuel in the exhaust flow, hot or cold. In the sunlight. 

I always attribured this to unburnt fuel. Mechanical diesels 

[Bill Desmarais]

“smart” on the heak shrink idea

[Bill Desmarais]

nobody on this forum has removed a fuel cooler on a QSB 5.9 

As Joe would say, “Come on man…..” 

 

btw, I’ve read Tony’s great writeup on fuel cooler removal. 

[Bill Desmarais]

I freshwater flush my QSB 5.9 480 after each use.

The engine is generally shutdown 20-30 mins before flushing.

I cannot see in my mind’s eye why a 30 degree difference in water temp coursing through the SWAC side of the engine could be create a thermal issue.

I can’t sleep if I don’t freshwater flush after each use. 🙂

1 user thanked author for this post.

bdunigan

[Bill Desmarais]

Thanks for the replies gentlemen !

 

The QSB 5.9 in my boat has a Wolverine oil pan heater pad plugged in 24/7 when the boat is in the water.

The engine also has a factory drain hose on the bottom aft of the oil pan. My engine install is about dead flat level at the dock. Very little oil came out of the front magnet plug as expected.  

I have used a Jabsco Water puppy with neoprene impeller for years pumping oil.

Makes a real quick pump out of 14-15 qts of oil and you’ll be hard pressed to hole the hose of the oil coming out with the oil pan heater.

I’ll post up some pictures next time around 

[Bill Desmarais]

oil/filter change done.

The drain plug was tight.

Small breaker bar took care of the removal.

1 user thanked author for this post.

Landon Yacobucci

[Bill Desmarais]

yes I’ll send the pictures 

[Bill Desmarais]

Understood

 

[Bill Desmarais]

I would not attempt to f/w flush the engine  without running the engine….I do believe that’s a no no 

[Author]

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