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scenarioL113

This is a great thread! Always good for others to understand the basic concept of designing a marine exhaust system that (as Tony A would say) not doomed to fail!

scenarioL113

Looking good Pete

Hope to see you out there on the South Shore. Def cant miss Eastwind in that beautiful blue...

I may be heading your way since Jones Inlet is a disaster

scenarioL113

I haven't used these guys but they are working on my neighbors 42 Bertram with Cummins. Wolfe Marine Services Logan Wolfe 561-262-8028 Edit - I want to profoundly apologize for listing this this guys information. I would not recommend him under any circumstances. Here is what happened. I had an iss...

scenarioL113

Pete,

I am happy you are finally seeing "it in the flesh" and hear the purr and feel the breeze coming at you! Wow your results are right were they should be.
23kts and "sipping fuel"

Think of that like "sipping clear" with the men that are no longer with us...

scenarioL113

Be a little more specific. When you say ran between the fuel pump and the fuel filter....Are you talking about a fuel filter that is mounted on the engine? OR Are you talking about a primary fuel filter that is remotely mounted like a racor unit mounted on the bulkhead wall. The fuel line that would...

scenarioL113 · Re: 9.11.2023 amen!

amen!

scenarioL113

CPL 970, like Carl said but take it on the high side. 100 RPM OVER the rated RPM of the engines at WOT... NO LESS !!! That means you need to get 100 RPM over Rated RPM at your normal cruise weight / configuration. Including fuel, people, etc etc... Even underpropped like that you are still going to ...

scenarioL113

India-Pale-Ale

BEER strong beer cheers!

scenarioL113

Yannis wrote: ↑Apr 30th, '23, 12:48 Notice that everything is measured in wineglass equivalents LOL !

Funny, I use the same kind of glass except it is measured in IPA's...

scenarioL113

I second what Geebert asked. I would not add any coolant and and Keep an eye on it and see if it continues to go lower. It could be going out the exhaust from the "RAW" water side of the system thru one of the heat exchangers or coolers. It is NOT uncommon for 2 identical engines to behave different...

scenarioL113

Nicely done!

scenarioL113

Try and post the question on sbmar forum. Tony Athens (who owns seaboard marine) redid a 31 Bertram named "SHOOTER" a few years back. They installed tunnels (at the owners request) and I think they mated it with yanmars. The Yanmars were high HP tho like over 400 I think... If you search it you migh...

scenarioL113

We are having Major Flooding here on Long Island. I am 2 miles from water so OK but my Mom is in Amityville and at the head of a canal (Yes where the Horror house is..) we still have incoming water for another hour so we will see... I think we will personally be OK but I think many many houses flood...

scenarioL113

They make it look so easy...

scenarioL113

There is a big "WOW" factor there! Very impressive

I just am not a big fan of outboards and fishing for fish that fight. Just my useless opinion...
For $4.5M it does sleep 5....smh

scenarioL113

Great video! Very entertaining

scenarioL113

sad! I saw the fire on the news and it was devastating

scenarioL113

I have used Nozzle Master in Orlando Florida a few times and I have no complaints. Look them up, they are pretty close to you...I guess

scenarioL113

Just saw that Walters old boat Blue Beard is for sale. I had inquired about that boat a few yrs back but she had gone to Africa where she is now. Shame she is so far away. Boat is looking good too!

I saw it on the Bertram 31 Society group on Facebook

scenarioL113

500 to 600 each? I would say around there for a pair of take outs

scenarioL113

I know the engines are freshly installed... Were they taken apart or were the injector pumps removed? I only say that because timing can cause an engine to lose RPM and run hot...just food for thought although I would not think that is your problem... Also are the valves adjusted properly? Just talk...

scenarioL113

I missed those. Hopefully you can take another seatrial now and see what RPM you are really getting... IMO you would be smoking a lot if you were that heavily overpropped but who knows. Report back on the other thread when you get the tachs squared away

scenarioL113

Can you post some videos of your seatrial. I for one would love to see your Hatteras in action

scenarioL113

If you look at the PDF and specifically at wiring section and look at 8 "A", I think that is the same type tooth counter option that is like our Cummins. The tach should accept it....maybe....

scenarioL113

I was looking at your pics of the engines and I do see the sensor. Give it a try. You might have to troubleshoot the dip-switches on the tachometer. You will prob need to know how many teeth are on your flywheel and then search "faria" for a reference guide or sheet that can help you with figuring i...

scenarioL113

I dont know about Yanmars but I know that Cummins use a flywheel tooth counter that is a magnetic switch that screws into the bellhousing. They work very well and work on any flywheel as long as you have a threaded hole in your bellhousing. Look on the opposite side of the starter to see if there is...

scenarioL113

Every one of those strainer holes are restricted from not just barnacles but from encrustation. I would ream every single one of those holes and maybe even increase to the next size up drill bit. I did it on mine last year. Not much you can do about growth on the inside tho except pull them off ever...

scenarioL113

I spoke to Chuck today (UV's son in law) and he is reluctantly listing Uncle Vics 31 Bertram for sale. It is a Cummins powered B31 and there is info in the listing on Boat Trader. He has kept it up the last bunch of years and has done some repairs as was needed. He is gonna get some better pics late...

scenarioL113

Micky, you are the energizer bunny kid!

scenarioL113

Keep digging, there is def a prob in the raw water side...the risers should not get hot to the touch like that. Maybe you have an "air" leak and sucking air into the system and causing a cavitation in the raw water and not getting good flow when you are revving at your cruise RPMs and higher. Do you...

scenarioL113

vince I am really not sure BUT if you are lined up perfect and you have 1/4" all around that Obviously gives you "1/4"..."play". I think if your alignment went more than 1/4" out of whack to then make contact you would have more problems than just the contact of the log... Like I said, I honestly do...

scenarioL113

Lets all keep our fingers crossed! Good luck Micky!

scenarioL113

...so...if you are overpropped @380 then you just hit ctrl-alt-delete=insert new parameter=425hp....problem solved...LMAO!!!

scenarioL113

Pete, you made the RIGHT decision and DO NOT LOOK BACK! Now, you know EXACTLY what you got with your project and ZERO "unknowns"... Buddy boy might have been fine but you were taking too much of a chance, especially since you are NOT a Yanmar mechanic or a professional boat builder...please take tha...

scenarioL113

That dream might stem from last year when you were taking a serious look at "Buddy Boy"...

scenarioL113

What HP are those QSBs? I dont know much about those engine...are they electronic?

scenarioL113

Is there a possibility that your water is being restricted from entering the system? Like the thruhull has some kind of a restriction? Whether it be barnacles or other debris. I had a bad valve that was closing on itself a few yrs back (a guillotine gate-type valve). The vibrations was causing it to...

scenarioL113

Rick, Is it possible that the hull on the 31 is more of a semi-displacement hull or deep-vee and not so much the same as a planing hull? Capt Pat in the article mentions it as a deep-vee with his own handwritten diagram showing the flow of water.

scenarioL113

Did you "widen" the flybridge? What year is the hull?

Looking awesome!

scenarioL113

From what I understand they are in many cases omitted and by-passed. The benefit is negligible and depending how your fuel lines are run can accomplish similar results.

scenarioL113

Your numbers are all pretty close across the board. Since you do have blow-by then suspecting tired rings is probable. Excessive carbon build up on valves and tops of pistons could also span equally across the jugs. These engines need to be run wide open for a bit also every trip out in my opinion. ...

scenarioL113

Good luck Jason...I may have to take a ride to NJ as long as you take me for a ride....I will pay for the fuel...

scenarioL113

We could use on in Jones Inlet...

That sucks, Do you know where it is supposed to be?

scenarioL113

Very scary how fast that thing went to the bottom... High water alarm would have been helpful (maybe not enough to save the boat tho). I dont know what the casue was for the taking on water... Crash valves may have helped too. People ask me to go way off-shore all the time and I am always like NO!.....

scenarioL113

Zoom in, the blue tabs are aluminum . For that capacity I’m guessing it a T shaped tank that extends past the stringers. https://www.greatlakesskipper.com/media/catalog/product/1/c/1cd12bef07499c5b64004c55b0309f38.jpg?optimize=low&bg-color=255,255,255&fit=bounds&height=700&width=700&canvas=700:700&...

scenarioL113

I mean something like this... credit sbmar for the photo

scenarioL113

I am thinking that they may have (or plan to) fabricated an integral fuel tank like Tony Athens did on "SHOOTER". The tank could then be literally built around the sea-keeper

scenarioL113

I guess they will make the cut-outs when the exhaust will be laid

scenarioL113

Now that is a good question...

scenarioL113

Bayliss just posted some info and they are installing a 250 gal fuel tank. Looks like the seakeeper 3 will go in front of the tank as the pics showed a deck mock-up with a hatch right at the forward part of the cockpit floor. (I think it is a hatch for where the seakeeper 3 will go).

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