bertram31.com

scenarioL113

...where would the seakeeper fit?

They are installing a generator as well... I guess the gen could go outboard of one of the engines but that seakeeper has to be in the centerline of the boat

There is not that much room under the floor between the engines or in the cabin, right???

scenarioL113

I am just shocked about the cracked block... I would think even a hacker would have tried to weld it... The connecting rods may have been grinded to match the weight from one to another... They may have been different or aftermarket, I remember my father weighing connecting rods and "taking off" wit...

scenarioL113

That is crazy! That O-Ring would be another point that would give a loss of oil pressure. Sometimes there are parts that supercede and an update "may" have changed it to some sort of O-Ring but I DOUBT IT. The O-Ring might seal initially BUT would probably allow oil pressure to bleed out as the oil ...

scenarioL113

OK, now you know where it is at...get that crank miked out and pray it is still serviceable and go from there buddy

scenarioL113

OK, you are on your way now to get this problem fixed! It sucks but this is the way to do it.

scenarioL113

If it just the crankshaft I think you can reassemble yourself...

People are unbelievable and this is why I do EVERYTHING myself unless it is absolutely necessary to hire somebody...

I know most on this forum feel the same way

scenarioL113

Thanks Jason, Hopefully it will be in by Tuesday. (if not I will take a ride into NJ LOL) The Impeller was new LAST season Tony. The impeller is in excellent condition but one cog tore when the key let go so it is shot now. I think the "seal" let go and raw water got into that 1st bearing. The major...

scenarioL113

I went for a quick cruise with my son the other day and as soon as I went up on plane I started to smell something burning. I looked down off the bridge and did not see anything and assumed that the smelll was from the Meadowbrook Pkwy (near Jones Beach, NY) that I was next to (thinking it was a car...

scenarioL113

cylinder 6 being able to remove by hand raises my eyebrows. A loose cap will give oil PSI loss when the engine gets upto operating tempereature. I dont know if it is feasible to run the engine on a pallet to see if that corrects the problem. You say , you can NOT loosen the other ones? Why? (are the...

scenarioL113

From the pics you posted Micky, I would say it is usable as it does not appear to be galled or have catastrophic failure. Get it to a machine shop ASAP! Like I said if you were able to do this much (dropping the pan and pulling the journals) than you are half way there....just take care of it yourse...

scenarioL113

If the guy is gonna jerk you around just bring the crankshaft right to the machine shop and let them tell you what condition it is in

scenarioL113

If he did touch the bottom end then he never had the crankshaft checked to see if in specification. Anytime you pull an engine apart and you are just not sure of how it was running before you ran it then you MUST have the crankshaft checked. Micky you are warrior with this project and in the end it ...

scenarioL113

can you be more specific on the "shaft seal"???

You mean "stuffing box""

What size shafts do you have? 1-1/8? or 1-1/4?

scenarioL113

If you search on sbmar.com you will see many custom exhaust designs for Cummins engines. search the word "exhaust" and "doomed to fail". This will show you what NOT to do. The most important thing is to create a "hump" in the system which can be done directly off the turbo and the mixing elbow or st...

scenarioL113

Micky, If you are still waiting for the rest of the parts of the oil pressure regulating valve than just wait till you get them. I know it is frustrating but at least if after that you still have a problem then you know that you did all that you could do... Bruce is correct that the bearings will af...

scenarioL113

I will check with a second digital multi-meter. The alternator at the shop bench-tested at 14.5 volts. 14.9 -15.2 was via my multi-meter at the battery and also at the post on rear of the alternator but like Tony said earlier my multi-meter could be wrong and I need to check with a second one. If th...

scenarioL113

One of my alternators is reading about 14.9 to 15.2 volts when charging. I pulled the alternator and brought it to the local shop (old school shop) and they bench tested and under load and it never went over 14.5 volts. I swapped the alternators from port engine to starboard engine and the problem f...

scenarioL113

I guess it is redundant to the bolts. Bolts that secure engine parts that have jacketed water or raw water are sometimes "gooped" on the entire threads to prevent leaks and I guess. Head bolts are usually handled in this manner and I guess it is possible that the "goop" could prevent metal to metal ...

scenarioL113

Looks good so far Rick, Widening the bridge is a nice upgrade if you are willing to go that route. If you look at the 30 CC Tournament the bridge is huge and I think when they built it they took many of the shortcomings of the B31 and tried to better the 31 with newer ideas.

scenarioL113

It is def a very old looking screw. If you keep coming across them then maybe one day the floor may drop or something....LOL

scenarioL113

interesting I wonder what the prob was that someone had to file or "fit" the part. In my opinion that part needs to be replaced if it has any problem working when it is test fitted and or assembled. It is a critical component. Maybe the unit is from a different model yanmar and was close to the same...

scenarioL113

Right from the Yanmar manual Clogged engine oil filter Replace Engine oil temperature too high Check the seawater level Failure of oil pump Overhaul or replace Faulty operation of oil pump relief valve https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiGibfQs_n3AhWWkYkEHdW4D9...

scenarioL113

That might be the best looking boat in PR

scenarioL113

Furthermore, I "think" you have a "vane" style oil pump like most engines. Yes like anything else they can go bad BUT I tend to think it may be something else. These oil pumps are pretty damn reliable and really would need to come apart to stop working (IMO). Low oil PSI is one thing BUT ZERO??? If ...

scenarioL113

This goes without saying.... OIL PRESSURE is the LAST thing you mess around with. If your mechanical gauges are reading "zero" DO NOT RISK IT! You can burn up main or cam bearings quickly. I do not know anything about Yanmar engines but oil PSI is oil PSI. I agree it sounds like some regulator / pre...

scenarioL113

These engines were very smokey when we were lurking in the inlet the other day doing some soundings and sniffing around for a few minutes. Prob around 1800-2300 rpm range.
Prob would be smokey on a fast speed troll

With that said I felt the performance was pretty good

scenarioL113

A friend of mine has a 28" Carolina Classic and he has KAMD 44 EDC engines. He has some turbo issues and I ended up pulling the turbo and disassembling it to free the shaft that was stuck from obvious salt water intrusion on the exhaust side. There was scaling and the turbo would not spool up. I cle...

scenarioL113

If it makes you feel any better my port side engines runs a similar path. The Cummins have the raw intake on the "port" side of the engines. I use heavy duty reinforced hose and it handles the path and bends pretty well with no stressing bends

scenarioL113

Geebert The important thing is to find what or "if anything" is wrong and if it is structural. At the end of the day I am SURE whatever it may be it is repairable. I t might not be a project you wanted to get into but now you are into it so just find and fix... It is fiberglass and resin...layer upo...

scenarioL113

There really are no tags on the transmissions? Did you scrub the oxidation and crud off and try to see if they are hidden under crap? With those props and pitch and gas engines I think they are around 1.5 ratio but dont take that to the bank, it is just an opinion. If no tags then you can kind of re...

scenarioL113

...how we doing Jason??? inquiring minds would like to know... Hope all is well buddy

scenarioL113

Looking forward to some Pics Pete!

I am glad that this project is working out for you and I hope to see you out on the water if our paths cross on the South Shore

scenarioL113

I have never "whacked" a zinc in my life....until today. All this talk has me overthinking it....

scenarioL113

Be advise FDNY respond to three fires a day from lithium batteries!!!!! Bob is correct! I believe the prob with the lithium batteries is that many are made very cheaply due to their popularity. This problem has arisen in the last year and a half. Although I am retired now from FDNY I still talk to ...

scenarioL113

I think one alternative would be to leave the standard rotation 1.5 VD in place and only replace the other side with a new transmission in a 1.5:1 ratio. This way you only need to buy one transmission and deal with any issues of shaft length etc on one side only. I went thru the same thing when I pu...

scenarioL113

regarding the welding of struts... I MIG welded my rudders back in 2008 (around there anyway...it was a long time ago). Used 100% Argon and silicon-bronze wire. I cut up a ruined rudder and added it to both my rudders so I can steer straight on one engine. They are still together. We vee'd the joint...

scenarioL113

Carl, I believe he wants to replace the engine that turns opposite with a standard rotation engine. Velvet drives are NOT capable of accomplishing this. Velvet drive made one gear ratio (1.88:1 or close to that) that the output spins opposite the input for forward and reverse running. They did not m...

scenarioL113

I toyed with the idea years ago and the prop shop told me NO WAY... too much difference between the ratios. Sounds like you are toying with velvet drives. I think the 1.88:1 has an output that turns opposite the input (if I recall correctly unless it is the 2:1...I forget). I was thinking about usin...

scenarioL113

I've seen no other boat that equals the pedigree, the original build quality, or the following. There's some that should. Supposedly the chris craft is an "improved" b31, and so similar, they got sued by bertram for copying. The blackfin is also supposedly an improved b31. But what i keep noticing,...

scenarioL113

Nice to see some progress Pete. Looks pretty and will look even better with those white engines in there....

scenarioL113

I would imagine it is because the engines are sitting at a height that is prob too high combined with the 11 degrees struts.

Sounds like the engine beds need to be lowered and news logs installed but I am only guessing...

scenarioL113

John Make sure you study all the info you can before you start welding. Numerous guys right here on this site have excellent designed exhaust systems. You can search on the seaboardmarine forum as well and their website for marine exhaust systems and ideas. It is important to design a system that is...

scenarioL113

I am just thinking about the difference in weight when it is cold...you know on a cold start. 15w40 is more like syrup compared to ATF at room temperature. I am impressed with that fact. I would have never thought would work in a transmission. I remember back when the T5 and T4 transmissions were st...

scenarioL113

15w40 to ATF is def very different stuff. (I think it is anyway...) I am surprised both work well in the same application

scenarioL113

What kind of cooler is it? I mean is it attached (like part of the engine) to the engine like a Cummins would have or is it a cooler that is mounted on brackets that is mounted (usually on the side) like a mercruiser type. 20 yrs and 1000hrs...just might have been time. I would inspect the other one...

scenarioL113

You can try an "oscillating" saw. Dewalt and other cordless brands are avail at Home Depot or Lowes. If you dont have one GET ONE. They come in 20volt and add a bigger battery. Uses the batteries as my drills and impact guns They work great on all kinds of materials and you have pretty decent contro...

scenarioL113

I will reiterate and say that it "probably" will be "NO" problem to run the return line to a "TEE" that is "directly" connected to the "TOP" of the tank.

I just would not do it that way... I am nobody and far from an expert...

scenarioL113

The return line is an important aspect of the fuel system and proper running of the engine. If it was clogged or restricted it will affect the engine. When diesel engines are running under load they are returning more fuel thru the line than you would think. There will be a calculation on how much f...

scenarioL113

The forum "The Hull Truth" has a big swap and sell topic and has many members all across the nation. I would go there first

scenarioL113

Makes sure it is shareable

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