bertram31.com

I own a Bertram 31 Bahia Mar, in the process of updating my depth recorder, just purchased Garmin echo chirp 94sv. It comes with a side scan transducer that is mounted off the transom, don't think I want to do that. If I buy a thru hull transducer, will I need to buy the pair for the side scan to wo...

All Aboard has been hauling my 31 Bahia Mar in and out for the last four years, Dave is a good guy.

The gear ratio is 1.52:1, there was a small amount of growth on the props and shafts. I'll get the props cleaned up and try them again in the spring. I had the boat for about 5 years, 2 years on the hard for rework, gas tank,deck,rub rail, paint and etc. Put it in the water for 1 season and blew a m...

I have a 1977 Bertram 31 Bahia Mar with twin 454 Crusaders 330 hp 1:52 reduction. The props on the boat are 4 blade 18x18, the max rpm at wot is about 3500 rpm. I think the boat is over propped. I was reading that most 4 blade props the pitch should be .8 of the dia., this would leave me with a 18x1...

Just removed my starboard engine , It's reverse rotation.

I am replacing a rudder port on my 1977 bertram 31 Bahia Mar and was wondering if I could just use 5200 instead of making a shim or spacer made out of resin?

Thanks for the help, I will dry fit the rub rail before applying any sealant. The old rub rail has already been removed and the holes are filled and cleaned, plan on taking my time.

Finally installing a rub rail on my 31 this weekend. My question is: should any sealant be applied to the back of the rail or any of the mounting screws?

I wasn't able to find silicon bronze oval head slotted 3/8 -16 3" bolts, would flat head be ok to use? Thanks for all your help

While removing the rear deck and replacing the fuel tank ,I Thought it would be a good time to fix a leak on the port rudder. This leak wasn't the stuffing box but from around the flange . I removed the 4 bronze bolts that were reduced to half their dia. My question is, do I need to replace the bolt...

Just picked up my 250 gallon tank at SP Sheetmetal in Toms River N.J. for my 1977 Bahia Mar. Only took about two weeks from first contact to completion . Cost $2570.00 1/4"Al. epoxy coated,with mounting tabs.

Thanks for the information. The bow trailering eye is low on the prority list, I have time to think about this project before April when the boat will be hauled back to the water.

Sold my 68 Chris Craft Lancer I owned for 35 years and purchased a 77 Bertram Bahia Mar, used it for two months without any major problems, one shift cable broke. Always wanted a Bahia Mar, now I have one. Needs a lot of fix'in up, rear deck, gas tank, new name, canvas, and a good clean up. It's now...