bertram31.com

conchy joe

Pat, I have had the granny's off the motors and did a rebuild on the motors, so the flex plate and springs are good. My guess is a pressure issue. I did not know if some sort of valve might be stuck, since these have been sitting for many years. I'm hoping to avoid pulling everything back out

conchy joe

Happy Holidays everyone, I thought that I was nearing the end of my diesel reposer project. Today's goal was to get the first motor running now that its actually in the boat. After a little priming and fiddling she started right up (cummins 4bt) but when I put the transmission in gear for the first ...

conchy joe

155HP Cummins 4BT, ZF220a.

conchy joe

There was a boat in the picture?

conchy joe

Good luck with the rebuild. I hope to install my diesel motors/transmission with weekend on my 28 reposer.

conchy joe

I have a cummins 4bt which I hope to install in my 28 sometime in the next month. I am working on the fuel lines, specifically the fuel return. On the side of the 4bt's there is a fuel injector return line, that t's into one line returning to the injector pump and the other ends goes to a straight s...

conchy joe

Since I can't access the old BB, I have to ask what the group recommends for ZF 220 tranny fluid. I already have all the specs from ZF, but bottom line what products are you guys using that I can run out to the auto parts store and get without having to translate all the specifications. Also oils wh...

conchy joe

I'm sorry, I misread your post.

I have a 16k elevator lift and its more than plenty.

conchy joe

Hey guys, I am making progress on my 28 repower with the Cummins 4BT's, next week I'm doing a dry fit of the motors so that I can make mock ups of the supports needed. I got one shaft cut to length with a fit and face of the flange. Wouldn't you know it, the 1.5" hubs on the brand new props are only...

conchy joe

I would keep my eye on craigs list for a lift. I got mine for $4,250 and was able to install myself.

conchy joe

You should have a heavy wire going from each starting battery going to each engine battery switch and a heavy positive to each starter. As for the house battery it should be independent to the house battery switch. How your engines are wired to the house battery for charging purposes can be done a c...

conchy joe

I was hoping to get at least one side done over the weekend, but Isaac had other plans, so today I started grinding and ran into an obstacle. My rudder supports come all the way forward and butt up again the shaft log hole. Should I cut the support back about 5-6" and then continue the scarf or what...

conchy joe

Thanks Capt Pat, I feel more comfortable in doing the job now. Will keep you posted.

conchy joe

Hello faithful, I am in the process of following Capt Pat's building tips to do my fiberglass shaft logs on my 28 Bertram FBC. I have sawed out the factory fiberglass dimples which make a bigger hole than the 31's bronze logs. Anyhow I about to glass in a layer of fiberglass to fill in the hole befo...

conchy joe

Oh hell, you make my repower look like a weekend project. I feel for you. Good luck.

conchy joe

Sending some money out today.

conchy joe

Well guys, I'm kind of broke because of the repower project however I I think I can spare $25. How do I get it to you?

conchy joe

Hey Craig, I did away with the raw water strainers as Capt. Pat suggests. I only use the external strainers and that has worked for me. If you want my old ones I have them sitting my garage you can just get a service kit to replace the gaskets and so forth. I lives right around the corner.Â

conchy joe

I never had the honor to meet him, but more than once he responded to a problem I had with the right answer. He's in my thoughts.

conchy joe

I too have a 28 and notice that it looks like you are grafting some of the 31's design elements onto her. I would love to put the 31 style engine boxes on my too for the same reasons. Keep up the good work.

conchy joe

Ok guys, I just drained my tank completely on my 76 28 Bertram. It looks like the tank is gel coated white inside. It appears that there is a black coating on top of the white. It appears about 90% of the black coating is in place. The other 10% appears to have flaked off and is in pile at the back ...

conchy joe

Does anyone have any experience with Karan or Odessa cylinder heads?

I need a replacement for my cummins 4bt.

Are they reliable??

conchy joe

Just dealing with similar issues. My bracket bolts are glasses in place from the tank side.

conchy joe

Update:

Picked up injector pump from Jack at Florida Diesel Injection this afternoon. Put it back in, bleed the system and it started first try. Woo Hoo!!!

One rebuilt one to go.

http://www.youtube.com/watch?v=9-aSLZID ... ata_player

conchy joe

I have a 76 28 FBC, that I have had for three years. I have done two very long trips throughout the Bahamas (two weeks in Andros & then 3 weeks in the Abaco's) over the past two years living on the boat with three adults both times. Other than getting 1.1 nmpg I could not be happier. I am repowering...

conchy joe

An update, Jack called, he got the hard parts in and in the pump. The pump head is good, he said that the pump head is very expensive and would not know if it was good until it's on the test bench. However, the advance mechanism is giving him fits, apparently one of the pumps had parts put into it f...

conchy joe

Marlin, I sent you a PM with my contact information. I would love for you to come by.

conchy joe

Ok, the wife and I spent the last two days removing all of the wiring, old engine bunks, degreasing, etc, in preparation for the new Cummins 4BT's. Anyhow we found some rot on the forward and rear bulkheads, between the inside stringers. The rot is about 8" wide and 12" high. Everything around is so...

conchy joe

Just got back from Florida Diesel Injection. Jack showed me the guts of my pump. The pistons are frozen and I need a couple of hard parts. I brought him the second pump to check it out also. Anyhow making progress

conchy joe

Ship Shape TV just did an episode where he replaced his diesel power out of his 20' Bertram because it partially sunk at the dock. They mentioned replacing a ton of parts but the engine still would not run right.

I believe I have the details right. Any chance that's the motor???

conchy joe

Vicroy, thank you, but the problem is not in the bleeding. The engine is in my garage with a short fuel line to a can of diesel. The fuel is making it to the two bleeds on the injection pump without bubbles, however it does not make it out of the back of the injection pump, it simply pours out the d...

conchy joe

Looking good.

conchy joe

I caught the diesel to gas conversion mistake shortly after putting up and then wanted to see if anyone caught it, congrats. Anyhow, my boat is the Conchy Joe. I used to get asked by the Bahamian locals if I was a conchy joe? A term for a white Bahamian. I'm not, but my wife wanted to name the boat ...

conchy joe

You know, just while on. I am at work, now, but this afternoon I will try, I did not even think about the voltage drop. I am using a smaller battery than I normally would use.

I'll keep the fingers crossed.

conchy joe

Thanks Bruce I had did those things but I double checked after your post. I guess its a trip to see Jack at Florida Injection my pump.

conchy joe

Ok, we are making progress. Attempt our first start today of the Cummins 4BT and I have encounter a problem. I have the injector lines loose and when I crank the motor, no fuel at the injectors, however fuel just pours out of the fuel drain manifold (the injector return lines go to a T and one side ...

conchy joe

I appreciate the info. I have confirmed the signal comes from the alternator however all the wiring diagrams I can find don't show a motorola alternator, so I am now asking does anyone know which wires go to which terminal on the alternator? The only one I can discern for sure is the positive?? BTW ...

conchy joe

Ok so I feel really stupid. On a Cummins 4BT or 6BT, where does the tachs get their signal from on the motor? The alternator?

If so I have a Motorola alternator and cant find a
part number or a wiring diagram for the alternator.

conchy joe

I got solid bronze ones from Merritt supply. Love them. Pretty much fool proof.

conchy joe

Last year I followed Capt Pat's plans for the rudder shelves to the letter and they turned out perfect. I mocked them up in thin plywood first for a template and I am extremely happy with them.

Make sure you also get the oversized rudders if you don't already have them.

conchy joe

Heart warming!

conchy joe

Marlin, sorry to hear of your troubles. I just picked up a complete set of Morse I6000 electronic controls at the Dania Beach Marine Flea Market and was planning on installing them with my diesel repower, but your experiences are going to give me a lot to think about. Anyone out there have any exper...

conchy joe

Bob the wooden engine jig is a great idea. I was thinking about the laser pointer idea and decide that getting a laser bore sight for a rifle, then boring a hole into a wood dowel the same size as my existing shaft that would accept the bore sight would be a cheap and effective tool. Will keep every...

conchy joe

Oh, trusty me I've looked over all of his building tips and will be using his expertise!!!!!

I don't claim to know much, but I am smart enough to follow the advise/teachings of a master like Capt Pat.

conchy joe

Bruce: Thanks for your explanation. I think I will go with 1 3/8" shafts, put new logs in and do new custom struts. That way I get the hatches to close and it will be less frustrating in the long run. Also, yes I was dealing with Jack. Any suggestions on dynamic balancing the motors. I just static w...

conchy joe

I understand the length issue now. I have one set off 7mm injectors and one set of 9mm injectors. The 9mm injectors were able to be rebuilt and 9mm head was good. My injector shop said he can't find parts for the 7mm injectors, but are available from cummins. It's just ironic that the newer 7mm head...

conchy joe

Capt Pat: I spoke with Jim. I know he's the new owner. I said I was still good even if the shafts were the lowest PSI material. Bruce: Can you explain the length issue, I'm not catching your drift. Thanks. PS Just found out the second engine has a cracked head. The kicker is that the first motor has...

conchy joe

I just got one motor back from the machine shop and I am waiting on a parts shipment to start the assembly process in my 28 Bertram gas to diesel conversion. Anyhow, I am building 155HP cummins 4bt's with IRM220A 1.53 trannies. I stopped by Bobby Soles Propeller and wanted to talk shafts and new str...

conchy joe

Looking great. Let me know when the boat is back up this way.

conchy joe

Thanks Bruce and Marlin!

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