bertram31.com

Carl

...two new turbos. Ok, no more complaints from me.

Carl

Tony- I think the idea in question has to do with the vacuum created as water flows past the underwater exhaust outlet. Something I never considered, but quite an interesting thought.

Carl

Was it the mini max baffles

Was it the high rise risers

Was it the motors running providing positive exhaust pressure pushing potential incoming water out

Or was it a combination of the three, two or…

I

Carl

Yes, Yannis Flax Packing is the natural waxy rope inserted into the packing gland. Yes, it may leak a little heavy when boat first goes in the water. Yes if leaking heavy, snugging up the nut 1/4 turn should slow it down. The Prop shaft "should" drip a couple of drops every minute or so, rudders can...

Carl

I may be wrong but it looks like Daniel was the 1st to pick up on the fact it would be a B26 installation. If marginal in a 28 I'd think they would be more than adequate in a 26. As you said, the running gear may be adequate to handle a high reving diesel which saves a bunch of money and time. True ...

Carl

With motors running and a baffled muffler I can see a reason surge tubes can be considered overkill. Shut the motors down with boat rock'n and rollin, pitchin n ditchin there will be a good amount of seawater in those hoses between the muffler n motor. A 31 using Stock Elbows can have that seawater ...

Carl

Bruce- What if the wheel pitch was reduced to offset the heavy load? Yes, I'd be slow and underpropped when light, but maybe at least it would get on plane and hit rated WOT when heavy. Underpowered is what it is... In my head, I'm thinking about the 4-53's @ 140hp in the 31. Yes slow, but they'd ge...

Carl

If that doesn’t give results, maybe we try a coolant dye. I hate intermittent problems…

Carl

Yeah...I'm lost. I prefer to read the instructions before I toss them. In any case, I still think we are mostly saying the same thing. The top of Rudder Post (tower) is supported by a well-built rudder shelf. The Top of rudder shaft is additionally supported by a heavy-duty bearing (pillar/pillow/fl...

Carl

Good to hear from you Kevin, As Tony said no need to be a stranger just cause your not in boating mode. Hope all is well, glad to see the boat is back in the picture for you. Although starting with a Project is a tough way to start in my book. I agree glass work is kinda fun, making something out of...

Carl

Doug, while Bertram may not have outsourced work to other companies, your observation of using whatever they had on hand may be right on target. The Bertram lineup consisted of several sizes of boats, I'd guess each line had an assortment of remnants, finish materials, and hardware around for the ta...

Carl

Micky...had to post those now???? Oh man that hurts... https://i.imgur.com/3pVQ8ug.jpeg Of course, I'm kidding (mostly)...we had snow this weekend. Boo Boo!! Eh, its winter in the north-east, it had to happen eventually and it's been mild...Ooops off topic. Great news! I'm so glad you're getting to ...

Carl

LOL...OK I see your point Bob, the picture shows a flat-bottom boat. I think we are on the same side of the fence. I look at the rendering as a basic instructional guideline for installation. The rudder post is plumb and the base is to be cut flush to the outer hull. Flush can be 90 degrees as shown...

Carl

OMG can the guy who display this tower installation "walk and chew gum at the same time" i doubt it ,just what i wanted on a sleek 31 bertram hull a bolt, nut and washer sticking out th bottom ,unbelievable the bottom painters turn marine mechanics are taking over Bob- Take another look. The depict...

Carl

Bruce’s book of the month suggestion was a good read. Thank you

Carl

From Tides Marine website. If you look at top picture you”ll see their design has 2 Bearings shown in dark green, 1 at the very bottom and another at the top just under the lip seal. Picture also shows the fiberglass tube is inserted through hull flush to bottom and glassed in place, fiberglass show...

Carl

On a windy day walking with a flag pole, I place one hand low with the other high, close to the flag. In my mind, the same logic applies to a rudder. I'd want the low support to be as close to the rudder as it could be with a second as high as possible. The rudder is not static, it rotates to make a...

Carl

Yannis- I cannot offer much aside from providing the lead Tony gave a few posts back.
Good luck

https://turboturbos.com/

Carl

Surface piercing props will give best angle

Carl

Daniel- My dads insurance carrier in Florida dropped his 28' 1966 Hatteras this year, after many many years of coverage and zero claims. Seems like when my business insurance dropped us, they said we were 7 miles from the Coast. I told them it's an Island, the island is only 7 miles wide, everything...

Carl

Just came across this post about transom-mounted rudders on a 31. I remember this post, just do not recall the impressions after the work was done. Some say the results can be a big part of a project.

https://www.bertram31.com/newbb/viewtopic.php?t=2279

Carl

jayjays1 wrote: ↑Feb 4th, '24, 08:46
Could really use Bob's knowledge on this rebuild.

What's good about this site is you have all his instructions in the old posts.

I do not recall talk of rudders affecting trim...maybe if bent outward they could lift or drag.

Carl

Yannis wrote: ↑Jan 31st, '24, 08:03 Haha, you remember the song, right?

Not a lyric I recall Yannis...maybe we listen to different music.

Then again I am one to hear a song...like love or dislike I usually do not pay attention to the words.

Carl

Scary thought without a doubt to just drop into a hole at sea. I guess if the rogue waves they say are true is a combination of waves kinda joining force and going high, then they could also go low...scary as the warning is not there, not that there is much of one with it going up...but at least my ...

Carl

Carl That first picture reminds me of a certain someone (who will remain nameless) who posted a picture of his project that had a tree growing out of the bilge. I can still remember Capt. Pat's reaction. What was to be a Hatteras Express became a Hatteras planter called The Tub. It's incredible how...

Carl

Yannis wrote: ↑Jan 31st, '24, 02:12 Beat me with your rhythm stick, beat me....

umm...are you ok Yannis ???

Carl

"how about a rum and coke?" :-D I don't think that guy understood the severity of their condition. Or he understood it all too well trying to add levity to the situation. It is something that makes me think. But not too much or I'd never leave the dock...mother nature can be more than scary at time...

Carl

What a difference a day can make...I cannot wait to see the last day!

My brand-new mufflers and hoses didn't look that new when I got them. They look like the item to circle, that does not fit the picture.

Keep 'm coming,
Carl

Carl

If I recall Todd was looking for a Salthouse.

Carl

Yes, to avoid rudder ventilation a rudder plate extending out from the transom, or a foil incorporated on top of the rudder seems to be part of the design...I'd think trim tabs could also work. Often nothing is as simple as "just move it" as one thing changed leads to another each having its implica...

Carl

I like Harris Crab House, but I’m far from local to know what’s best.

Yes, possible can be quite the stretch.

Carl

I believe the issue was the rudders were too far back from the props, I think you want to keep that relationship between the two very similar. It usually seems to be just enough room to pull the prop off shaft. If you want to find the info I think it was a member from the Caribbean, maybe St. Lucia....

Carl

I have 5 or 6 on the back of my tower. Nice,k it keeps the net and a couple poles out of the cockpit, but I have to climb up a little to grab them. Fine when fishing with someone, when alone with light tackle I think twice about should I put pole in holder, loosen drag n climb up for the net or clim...

Carl

Much better pictures...the riser itself looks to be dry with a heat shield on the Yanmar and a Heat shield and Insulation Cover on the HDI. So yes that does increase the distance between waterline and exhaust outlet and being dry it cannot leak water from the surrounding jacket, that is good. The do...

Carl

Steve- I made my riser and shower head for 3 reasons. 1st- Increase the height of the exhaust outlet above the waterline reducing the risk of seawater backing up into the motor. 2nd- Larger diameter pasage to reduce back pressure. To some degree "possibly" scavenge exhaust for better performance. 3r...

Carl

This is how I figured what would work before starting- Top yellow lone is hull at zero degree Blue line is the shaft. Top right square dot is the center of the Output coupling on trans, at 6-1/8" above the hull. Bottom left verticle line is aft end of strut... Follow Blue line down to the square dot...

Carl

Very Nice, very nice Peter!

Shaping up to be a good year for boating and you're going to be doing it in Style!

Very Nice

Thanks for sharing!

Carl

My buddy bought his boat a stones throw away form there at Cedar Point Marina on Kent Island, nice place and a great ride home.
Todd, it will be a real long ride for you. You'd better top it off before leaving.

Good luck.

Carl

Thank you for clarifying Bruce. Stock setups have to be good or the manufacturer would be out of business honoring constant warranties. I'd also believe they have a cutoff point where the design is "good enough". If they didn't, pricing would go through the roof and products would never hit the shel...

Carl

Shoot me down, but inspection for warranty is not taking into account if dumps leak water back towards the motor n turbo as that is a maintenance issue on the owner. Are they contemplating the odd wave with quirky roll n pitch of the boat that could possibly send seawater splashing back towards the ...

Carl

Looks great! What is the plans for the shower head? When I did mine I did not want to lose all that room by going up and over like your starboard side does, so did a dry riser with shower head like your port side. It was tight, but it fit and I now I get to keep all that real estate to play around t...

Carl

At least with these boats, the owners seem to be able to operate them, especially when equipped with a joystick.

Carl

I have tried so many times to understand the reason why people buy these huge ribs. Yannis- Your area seems to be huge RIBS, my area is humongous "Center Consoles" with a dozen outboards hanging off the back. I too do not see the allure, but think I understand why people buy them. The reason is nei...

Carl

If you go that route, keep in mind impellors do not like running dry for very long.

Carl

Yannis, I think it has to do with boats of this size being more of a commitment than a trailerable boat that fits on the side of your house.

Carl

Spraying stuff on the turbo to stop corrosion is masking a problem, the turbo should not be seeing moisture to corrode. Two turbos freezing up on one side does raise eyebrows, but you offered little info as to why the last turbo froze up. Was it seeing seawater and corroding or something non related...

Carl

Local knowledge and knowing the surveyor works for you are real important.

Being up here at the end of January will have you appreciating home more.

Good luck Daniel.

Carl

Daniel- Denis is a good friend of mine, smart like nobody's business, and you will not find a more honest person. The down side is he a bit of a trip from MD, although he did go to MD to check out the Cummins motors for me. If Neils person does not pan out, maybe a backup. If you tell him I gave you...

Carl

Yannis wrote: ↑Jan 11th, '24, 01:43 When I said that there is no safe way to start a motor at night, I meant there is a possibility of an accident with the prop, not that we can't pull the rope and start it.

Oh, gotcha. Ok then I have 2 words for you, Jet Drive.

Carl

I’m sure we can rustle up a few spots for a visit

Search found 5909 matches