bertram31.com

bob lico

thank you Craig nice photo of outboard rudders that makes it rather easy to explain even to the most casual boat builder. the props turn causing forward propulsion and the water is "pushed" into the leading edge of the rudder for steering other then Carl can anybody viewing this photo see something ...

bob lico

looking at the gears from the rear end of the ZF gears the two 1 1/8" plugs at the bottom of the gear (port is the gear filter and starboard side is the transmission oil drain plug) should be level or exactly horizontal . now you take a dimension from bilge to rearmost edge of gear and it will be a ...

bob lico

as usual Carl caught the theory immediately .you cannot have rudders swinging in the breeze in a 20 knot plus boat.

bob lico

and drop the design in a few years sort of a stop gap measure!!!! very much aware of Blackfin i built one and that was the first change i made with 3126 cats @385 hp. we removed cat 3208 @ 375 hp and installed the 3126 @ 385 hp,then put rudders under the boat even with transom (maximum undisturbed w...

bob lico

wow hold on here let`t go back to square one that is NOT how the ZF gears fit on the engine. those gears are rotated clockwise giving you a false indications of 5/16" clearance from rear of gears to bilge. my cummins are at least 6" further back toward transom. you did make the correct slot in the b...

bob lico

you say you have lowered the engines until you have 5/16" clearance from the aft most part of the ZF gears. ok good and the gear Barry mounts are TOUCHING the fuel tank bulkhead. that is as low and far back as the cummins can go, you can go one step further by putting one strap on the travel lift an...

bob lico

ok i will bite why would you make the propellers further aft ?????????

bob lico

your welcome !!! i even used a 1x12 piece of wood at the end of the main beam of jig mitered to 10 degrees the same as down angle of ZF-220 IRM gears .and put a prop coupling on the wood to emulate the gears connected to the engine so the jig is the exact same as the real cummins engine and gears

bob lico

i use 316L SS schedule 10 with zero problems in 16 years.

bob lico

thank you Rawleigh did not know they had such a great assortment of SS helm joints. i use 1/2" ----20 male thread because it is far easier to make a internal thread in the drag link then make a male 1/2" thread. this Helm ball bearing joint with damm near zero slack in the joint together with HY-DRI...

bob lico

if you want to soar with the eagles instead of walking with the turkeys listen up. study the tiller arms you will notice two 1/2" diameter holes bored in the end of the tiller arm. you will use the furthest hole . purchase two stainless steel 1/2" RH AND LH hind joints .then a 1 1/4" solid SS bar st...

bob lico

another photo showing the custom rack under the gunnel holding Long gaff, Short gaff and harpoon, opposite side has boat pole, handle and brush for cleaning blood, https://hosting.photobucket.com/albums/r21/BobLico/.highres/35750154894_cf880f13a5_n_zpsafjwe0gq.jpg?width=180&height=180&fit=bounds

bob lico

good idea Doug if you take the time and effort of cutting up 30 -8" strips of yellow caution tape (like the police used) and make a fold 1" from bottom and tape 30 different places in the area in back of bridge and the entire cockpit you will find this area as well as the area adjacent to bottom of ...

bob lico

tony the noise was tested with decibel meter after i completed the job the decibel level was 2 decibels less than OEM diesel.i feel one of the Most important factors in doing the job is to look at the photo you see the black water tank right against the interior hull wall. this is the best place for...

bob lico

i am being very modest here on HP increase actually if ambient temperature on the water becomes 60 degrees or less and you are on plane at 2000 rpm and increase the throttle you will feel the difference immediacy. https://hosting.photobucket.com/images/r21/BobLico/(edited)_(edited)_thumbnail_IMG_026...

bob lico

teak louvered doors on either side of engine covers are the air intakes a K&N air filter and 4" ID pipe behind grill goes directly to the turbo intake wrapped in W/P blanket worth about 7HP at cruise and DB level with sound down about 2 points lower then OEM engine compartment with diesels

bob lico

bob lico

extensive testing for seven days and the results are best combustible air is from the forward cockpit adjacent to engine hatch covers and the worst by far would be hull side air boxes. early morning as you go out inlet look in the distance and you will actually see the salt laden air up to 3' above ...

bob lico

red 33 C

bob lico

very friendly in a non professional status , everybody at the fire island pines is incognito you have no idea who you are talking to no children . no tourist whatsoever, no public bathrooms or any other facilities on purpose, no addresses on homes only a name. people refer to the "mainland" and you ...

bob lico

yes i do know of one 31 on Fire Island . i was passing by fire island pines and he was coming out the entrance of the pines going into the bay. i circle around and caught up with him and introduce myself .his FBC is docked on the east side of the pines entrance canal about 1/2 mile down.he would not...

bob lico

perfect ironworker you will enjoy the easy access to all your essential electrical connections and with well planed layout you know were every single connection is and more important the source of power to a device and for those of you who went the " extra mile" to isolate all your essential electro...

bob lico

a great utilization of wasted high and DRY space on a 31 Bertram ,a smart job Rawleigh like i said never been discussed before so i assume most 31 brothers made some kind of access hatch and used this area because it is directly in back of the dash board on the bridge BUT dry.and nobody i know wants...

bob lico

no way in hell could i ever get anywhere near that amount under the dash . under the dash is also wall to wall with cables ,dc wiring , bells and whistles as alarm for gauges. there are multiple terminal boards for harness to gauges and and three power supply for wiring, switch legs for the numerous...

bob lico

this is tough to describe but i notice nothing was ever mention over the years (20) being on this forum. lets start out or lets say you made two access drop down hatches in the cabin ceiling, next step you put up a Azak back boat from port to starboard across the entire bridge width.now you lay out ...

bob lico

Rockler sells a PAIR of self locking slides for $21.99 for 100 pound rating and 16" slides ,18" is $24.99 for a pair.

bob lico

that is a pair price however these are really heavy duty like a emergency FD. truck . for a occausional use on a boat you can make a slide on either side of draw in mahogany with a routed slot in a 16" wooden piece 3/4" x 1 1/2" and a notch to the rear top with dowel in draw side so when you push al...

bob lico

neither did i but i was a part time captain of a 50' new style Bertram and checked every little design /built concept of that boat and notice all the draws when put out all the way would not spill and when draw was closed it would not roll out in heavy seas unless you lifted up and pulled so there w...

bob lico

bob lico

i am not sure i understand why not use the side mount slides that drop down when closed so draw cannot open unless pulled up and out . nice trim on draws i used 5/16" E-pay on all edges for floor boards , draws and cabinets . fantastic wood stronger than aluminum on the floor boards and saddle under...

bob lico

bob lico

i have the same idea. under the AFT seat is the complete electrical distribution center with three large isolation diodes and three bank battery switches with six panel distribution main breakers and one main fuse for bilge pumps, all high and dry in air condition cabin. zero electrical glitches in ...

bob lico

believe it or not the most difficult aspect of the project was making a E-pay saddle with a track for the rollers of the sliding pocket door. i did not what to use the conventional aluminum sliding door track because i went thru all the effort of removing all aluminum around floorboards, cabin door ...

bob lico

pocket door with full length mirror on inside for the woman. the point is if you can do a easy project to your Bertram to make the woman happy and eager to go on a boat ride with the family and enjoy well what the hell go for it.the bathroom even has lavender incense at all times.the fresh water toi...

bob lico

really nice job making the radius of teak on the bench seat.

bob lico

when i started building my boat that was the first request of wife, daughters,grandchildren. i remove everything right to the walls and started from scratch, built vanity with Corian top, and made room for A/C in lower right than the best thing i ever did on boat i made Jabco porcelain electric cont...

bob lico

united states army; you never shit were you sleep !!!!!! or eat!!!!!!! in the absolute combat you Never shit were you sleep cmon guys.

bob lico

you moor bow to the dock? OK you like watching the women putting their legs over the front rail, other then that i have never experience docking bow first with a 28,31 Bertram.

bob lico

for those of you whom don't know the fuel fill hose and vent hose will fit on top of the tank under the deck so you remove the very bad fill hose (fuel will slosh in the hose because it make a loop )and it goes across valuable storage space .place the hose on top of tank and stub up dead center of G...

bob lico

315 hp cummins and 330 hp exactly the same engine .the difference is what the temperature of the fuel at the motor when the engine was tested and.for the technical guys 315 hp rating at 104 degree fuel rating and 330 at 77 degree fuel rated temp at fuel injector. pump. basically if you locate the Ra...

bob lico

that's about right for 454" mercruisers. you can go to fuel injection it really helps on a gas boat.

bob lico

correct tony you need at least 1000 pounds of torque output at cruise speed to utilize any effects of raking the propellers. number one you have to lift the boat up to ride on inners strakes and yes a pair of 454" mercruisers can attain 26 knots but cannot sustain that speed with any fuel economy so...

bob lico

belly band sooooooo smart ,excellent!!!

bob lico

i did a so so job not like bob H .I felt it was good enough with a mild sanding but lets not get anal

bob lico

i would never own a 31 Bertram with side panels .seriously how the hell do you lean over the sides of the hull and maintain any stability.????????? i may be wrong BUT then every kitchen in the world would have to eliminate the 4" "kick plate" under the cabinets.

bob lico

bob lico

carl there is no one change "fix all " with prop. design. you need to have massive engine torque to customize the props. to max you fuel economy and your planing angle at cruise. i was trying to get at that with the paddle statement in my above post ,trim tabs would kill my boat. totally destroy all...

bob lico

early bird we have to go 20 miles to the inlet and 72 miles to the first Flyer and 14 miles to the 100 Square ,from their we are all over. the bilge only looked like this after i painted the new rudder post job.i have custom fish boxes that go over this area that keep it reasonably clean.Phoenix is ...

bob lico

https://hosting.photobucket.com/images/r21/BobLico/(edited)_1BEE87FC-3AD9-400F-A804-416AD3B5E846(1).heic finish rudder post tower with full support for custom rudders, hull at rudder exit is complely flush with hull (zero drag) maintenance free 100 year installation and the rudder has 8" of total su...

bob lico

i like that explanation carl and when i spent that midnight oil in back of a prop shop raking inboard props (you can't do that) that's exactly why i did it! one other simple question how do you slow down or stop a canoe or kayak??????? please tell us what you do with the paddle

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