53 MY Repower, started!

[Pascal]

According to the Cummins guys and the prop shop who did the calculation it should top at 20/21kts and cruise at 17/18kts

This is why I ve been careful with weight since deciding to get bigger engine I ve removed a lot of weight from the boat. I m going to replace the ER floors with foam core glass as well as the ER hatches that weight a ton. Well, not a real ton... one concern is the drag from the new stabs which are twice as big as the Vospers I m pulling up out. Working on the trim tabs too. Bennett suggested adding tips to the existing tabs to better channel the water. They re about 2" deep and installed on the bottom edges of the tabs,

 

[krush]

According to the Cummins guys and the prop shop who did the calculation it should top at 20/21kts and cruise at 17/18kts

I'm 29-30kt WOT. Easy cruise is 18-19kt at 1800. Mine are 420hp 8.3s with the denso pump, but they all make the same HP at cruise.

 

[SEVEN]

They re degreasing the ERs... almost half a century of sludge! Old stabs should be out early next week along with old plywood floors then paint and start fitting the first engine

So far just 2 weeks and 2 days since it all started.

Have they already cleaned and painted the bilge?

 

[kingsley_oasis]

Hi Pascal,

Pictures attached.
It is 151" at its widest point and the curve measures 14" at mid point. Depth is 29".

One bracket has a crack.

 

[Pascal]

Thanks. It s not much deeper than the one I have now. I want to go to a full 36" deep

 

[piripucha]

17/18 kts cruise is a very practical speed for these boats. Are keeping the same size of shafts and reduction ratio (2:1) on the transmission ?

 

[Pascal]

Yes same shaft size and same ratio. Putting in new shafts and new props though

We pulled the old trim tabs and I m having the recess filled so we can install new 54x12 tabs which should help provide lift. I know that most of the time we ll run at hull speed but I want and hope to balance the boat to easily hop on plane if needed

The old Vosper mini fins put out a fight but they re out. I m hoping that they ll have everything clean and painted by the end of this week so the first engine can go in. They re also working on the steering system, exhaust etc.

Got a $4600 quote for a new 36" platform which isn't too bad I guess. Divinicel cored to keep aft weight down with ply inserts where it bolts to supports to avoid crushing the core

Heading out to the Exumas for a charter so we ll be gone for a couple of weeks but will try to get pictures of the progress thru a friend

 

[Scarlett]

Try Swim Platforms. Inc. in Phoenix Az. They made my 48 inch deep swim platform and included new Stainless Steel struts and all bolts, even gelcoated it to match my paint, shipping was pretty steep, like $400.00 but the unit was $4400.00 included a pull out swimm ladder. John

 

[SEVEN]

Try Swim Platforms. Inc. in Phoenix Az. They made my 48 inch deep swim platform and included new Stainless Steel struts and all bolts, even gelcoated it to match my paint, shipping was pretty steep, like $400.00 but the unit was $4400.00 included a pull out swimm ladder. John

John, did you redesign the stern ladder when you ordered the swim platform? If so send a photo or two. I hate the straight up and down design.

 

[Scarlett]

Rusty, not yet but I saw a 61 here with a sideways stair way that I really liked. It is on the list to do someday, I think 2018 is already full with projects. What I did change is the angle of the ladder is more do to the new swim platform being higher so the bottom of the ladder is out further which does make it a little easier to use. John

 

[SEVEN]

Send or text me a photo. That’s exactly what I was wanting to do.

 

[jim rosenthal]

John, did you redesign the stern ladder when you ordered the swim platform? If so send a photo or two. I hate the straight up and down design.

You're not the only one. They are a lot easier to use if they lean a bit, or if they are set up sideways.

 

[34Hatt]

Got a $4600 quote for a new 36" platform which isn't too bad I guess. Divinicel cored to keep aft weight down with ply inserts where it bolts to supports to avoid crushing the core

Ply as plywood should tell then use coosa in those spots.

 

[q240z]

Excellent!

Are you staying with the OEM exhaust riser?

 

[Pascal]

No it will be too low.

 

[Pascal]

Just got back from two weeks in the Exumas and went to the yard first thing today... quite a bit of progress!

Port engine was dropped in to work on mounts. Turns out the down angle of the new gears requires trimming the top of the stringers. I never realized the stringers were higher at the front sloping down towards the rear

Port side aft bulkhead has been repaired, shifted back in place and about to be glassed tomhull side

Rudders have been dropped, trim tab hole has been filled,new exhaust tube and hose about to go in

 

[Pascal]

Stabilizer hole. We re going to add some glass inside to reinforce the hull. I thought the bottom would be thicker

 

[Pascal]

Starboard muffler. On the port side I may have to raise the bed by a couple of inches.

ERs almost cleaned up. Will be painted after the bottom is reinforced for the stabs. All thru hulls and sea cocks removed

 

[Pascal]

Port engine in place. Lot more room especially behind it as well as outside.

 

[Pascal]

More space at the rear