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My 1976 Mako Restoration

Old 03-07-2019, 05:56 PM
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Attempted to spray some gelcoat tonight with a drilled out HF purple gun. The drilling operation went ok and no material would drip out of the needle seat but when I started trying to spray, compressed air went into the paint cup and splattered material out of the vent. No material came out of the tip at all. Well shit, this one is getting exchanged. Meanwhile, I had a rather expensive batch of 50/50 gelcoat duratec mixed up that was about to go to waste. Then I spotted my stack of rollers and trays sitting on the shelf all lonely lookin so I said to hell with it lets give it a shot. Rolling duratec thinned gelcoat with a foam roller works REALLY well. Just about as good if not better than spraying with the shitty guns I have tried. Comparable orange peel, no fish-eyes. So I put a few more coats on each the livewell plug and in the fish box. The fish box is just about done. Depending on how it looks I may sand the orange peel down tomorrow then finally bed the damn thing in the hull.





The foam roller sure saved the day this evening!
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Old 03-07-2019, 06:12 PM
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Nice to have a roller on standby, ive done about the same thing.

Was thinking about you saying your going to lower the transom bracket an inch, whats the height of it now?
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Old 03-07-2019, 07:07 PM
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I broke down and bought a a gel cost gun. Paper cup and easy to clean. Roller will get you there.
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Old 03-07-2019, 08:39 PM
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Originally Posted by surv View Post
Nice to have a roller on standby, ive done about the same thing.

Was thinking about you saying your going to lower the transom bracket an inch, whats the height of it now?
Eyeballed almost entirely off the garboard drain. The "deadrise" of the bracket I think was originally meant for a later model hull with steeper actual deadrise. I bought the bracket kinda used but the transom angle was the same and the setback was uncommonly exactly what I wanted so it will work perfectly for me. I probably would have been better off installing the tabs before the bracket but I bought the bracket like a year ago and the tabs recently so here we are.
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Old 03-08-2019, 07:25 PM
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I rolled the gelcoat in the fish box outside because I’m a dumbass and the amount of jihadi bugs that kamikazi’d into the wet gelcoat was rediculous. But otherwise the finish looks great. Most of them should sand out pretty easily but I got home from work late and didn’t feel like sanding tonight so I jumped forward into bedding it in the hull. Was pretty quick and uneventful but I’m phsyched to finally get to this point. Will hopefully foam it in tomorrow.

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Old 03-09-2019, 04:36 AM
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Originally Posted by Sharpest View Post
Eyeballed almost entirely off the garboard drain. The "deadrise" of the bracket I think was originally meant for a later model hull with steeper actual deadrise. I bought the bracket kinda used but the transom angle was the same and the setback was uncommonly exactly what I wanted so it will work perfectly for me. I probably would have been better off installing the tabs before the bracket but I bought the bracket like a year ago and the tabs recently so here we are.

It would be good to measure the height and see how high it is.
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Old 03-09-2019, 05:31 AM
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Damn bugs loooove wet gelcoat, when I did my key largo transom I watched in horror as a flock of gnats dove right in. The project is looking good, how high above the finished floor will the top row of bracket bolts be?
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Old 03-09-2019, 05:49 AM
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Bugs love gelcoat, bugs really love white gelcoat!
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Old 03-09-2019, 06:10 AM
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Originally Posted by surv View Post
It would be good to measure the height and see how high it is.
What reference point should I measure from? Right now the bolts are 3-4 inches above the deck so dropping it down one inch would still allow my scuppers to come out underneath the swim deck.
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Old 03-09-2019, 08:05 AM
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Originally Posted by Sharpest View Post
What reference point should I measure from? Right now the bolts are 3-4 inches above the deck so dropping it down one inch would still allow my scuppers to come out underneath the swim deck.

Mount depending on the motor height. 25 or 30" lower and 1" up for every 12" setback of the bracket. Measured from straight line of the bottom of the hull
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Old 03-09-2019, 09:59 AM
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Originally Posted by Floatingalong View Post
Mount depending on the motor height. 25 or 30" lower and 1" up for every 12" setback of the bracket. Measured from straight line of the bottom of the hull
to the cavitation plate.
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Old 03-09-2019, 07:48 PM
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Finally had a break in the weather so I got after it today. Tons of various sanding all over the hull and during breaks I took some measurements. When I initially located the engine bracket I kinda just eye-balled the height, leveled it and went from there. I didn't really think about it before but typically the engine mounting height is raised 1" per foot of setback with the bracket. My bracket has a 26" setback so the top lip of the engine mount should be 27" and some change above the keel (regular 25" outboard shaft length plus 2"ish for the bracket setback). I measured it at around 26" today. Maybe not ideal but with a second hand bracket that wasn't built for my boat and my planned Sea Star jack plate it will be fine as-is.



I also double checked the clearance between the bracket platform and the deck. Its bigger than I remember at around 7 1/2" to the middle of the bolt which leaves plenty of space under the swim platform for my scupper drains.



Then foamed in the fish box.



Then finished out the limber hole drains in the main stringers. I used a 1/4 circumference piece of 3" PVC to hopefully make a nice pretty radius once the sides are flattened out.



This generation of hull had smaller outboard stringers in addition to the larger main ones. I did not mess with these on my hull since a few drill core samples indicated a dry intact wood core. Plus they may be superfluous anyway with my upgrayedded primary stringers. I did have to cut a short span of them out to do the transom and built all that back quite awhile ago. This created a pocket at the transom juncture. I could have added another limber hole to drain the area but I elected to fill it with foam and cap it off. The cap core has been in place for awhile but the weather has been too shitty to glass it in until today. I have tried to form an outside radius with soft uncured thickened resin under the fiberglass matting but it always came out lumpy and shitty looking. So today I over-filled in the outer corner of this pocket with thickened resin so I can sand it down to a nice smooth and uniform radius tomorrow before laying the glass down


Last edited by Sharpest; 03-10-2019 at 06:20 PM.
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Old 03-10-2019, 06:17 PM
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Sanded down the fish box foam, worked on fairing the battery compartment and knocked down the orange peel on the livewell plug today.



Discovered a stupid kamikaze bug that decided to become a permanent addition to the project.

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Old 03-10-2019, 07:07 PM
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Originally Posted by Sharpest View Post
Installed trim tabs tonight. At least temporarily. Will over-drill and back fill with thickened epoxy before the permanent holes are drilled later. Wanted to check bracket clearances and it was warm enough to go outside again but not warm enough to apply any new material.

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I ended up with a couple inches between the swim deck and trim tab actuator top mounts so I think I will lower the bracket one more inch for more buoyancy.
Coming along! I have a question, is it just me and the camera angle...or are the markings for the engine on the bracket way off to the port side???

I was doing GelCoat today and found a bug in mine too...so yeah.

Thanks for your hard work!
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Old 03-10-2019, 07:19 PM
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The engine mounting holes are most definitely off-center but they are too far off and too uniform to not be deliberate. I have not found a good answer as to why they are that way.
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Old 03-11-2019, 05:09 AM
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I love the fish box, that is a great use of space. The bracket appears to be nearly identical to the one from a&j that i used on my 25 and the height looks about the same as I placed mine. in hindsight I could have raised it at least an inch. The engine holes look to be a mistake from the factory and will need to be re drilled. I would use another piece of 3/8" plate on the inside as backers top and bottom. Its really looking good and makes me want to get after my next phase! One word of caution ,finish it cosmetically before you make it run beautifully so there is no temptation to go fishing instead of sanding!
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Old 03-11-2019, 06:15 AM
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Yeah, really looking good and coming along nicely. Enjoy very much watching these works in progress. I'm very curious about that offset on the engine bracket holes. Maybe it has something to do with needing more room on the starboard side of the outboard for any number of hoses or connections?
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Old 03-13-2019, 06:06 PM
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Daylight savings time RULES. Weather finally broke and had a beautiful warm evening. So I glassed in the outer stringer pockets in the bilge. Felt good to finally lay some fresh glass for a change.

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Old 03-13-2019, 06:17 PM
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Originally Posted by Sharpest View Post
Daylight savings time RULES. Weather finally broke and had a beautiful warm evening. So I glassed in the outer stringer pockets in the bilge. Felt good to finally lay some fresh glass for a change.

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Daylight savings time is the best. Im so glad itís here. A lot of people I know hate it. They Wish standard time would stay. That has to be the mind set for those that donít actually do anything besides sit on their nuts in the house all day. Boats coming around beautifully. Keep up the great work.
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Old 03-15-2019, 02:26 AM
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I feel you on the weather, Iím in Texas too and I swear it has been a pain in my ass since last September. Great thread, a lot of hard work. I have that same Bosch sander and it is a beast. On hog mode, you better have a death grip on that mífer! I let my wife try it and she nearly went flying! Anywho, not sure if this is helpful or not, but the dust extraction on that sander is excellent if you have a need for it when starting finishing work. I use it building furniture/cabinetry among other things and removing the dust gives a very nice finish when hooked to a good vac.
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