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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #25 on: June 20, 2014, 09:42:49 AM »
I sanded down the bilge area, with 80 grit and wiped it down with acetone, to prep for the gell coat.
The idea is to have the spatter paint look. I took white  gell and mixed pigment, to try and match the exterior off white or cream color gell.

After I mixed the gell I used a roller to roll ot the gell base.

I mixed up some gell color to match the burnt red on the exterior , and some yellow and went to splatering.
It kinda came out looking like a bad slasher movie !
After the engine and all the assesories are back in hopefully it wont look so bad.






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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #26 on: June 20, 2014, 09:45:19 AM »
I installed the gimbal housing, with a new transom seal, and inner transom plate. I repainted the inner transom plate, red. I hate the way Mercruiser paints the entier engine and every thing , black.






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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #27 on: June 20, 2014, 09:50:50 AM »
The boat did not have any gunwale supports in it. I could not see where there ever was any, but I wanted to put some in any way.
I made a template and cut out some from 1/2' ply, Then covered with one layer of CSM and one layer of glass cloth.

After they were cured I ground all the excess glass off, then sanded the whole thing down and then tabed them into the hull using two layers of CSM.






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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #28 on: June 20, 2014, 09:53:16 AM »
After getting the belly tank set and foamed in, I installed the tank floor cover and got it all glassed in.
I had left it off for a while to make sure the foam set up properly.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #29 on: June 20, 2014, 09:58:00 AM »
Got some more goodies. EMI THUNDERS BABY!
I had been looking for a set of center rise exhaust, to uprade the old Merc log exhaust. I was looking for a set of oem, or GLM cast iorn's , but i ran accross a set of EMIs on one of the boards, for a really good deal, so I snaged them up.
Just need to find a set of tips and get a Y-pipe blockoff plate.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #30 on: June 20, 2014, 10:05:51 AM »
Ok so the gelcoat was all dull and hazed up and a little chalky, soooooo I did a wetsand and buff.
I started out with 800 and did a light wet sand around the whole top deck, making sure not to aply too much preasure as not to cut too deep. The idea was to just cut off the oxidation.
I then did a thurogh wetsand with 1000, 1500, them moved to 2000 to finnish up. The i mounted up a wool pad ,on the buffer and did a compund cut with 3m perfect -it rubbing compound, over the entire top deck and sides
After the compound cut, I screwd on a black foam whaffle pad and buffed the topdeck and sides with 3M finness -it polishing cream. After that I threw on two coats of carnuba wax.
With the exception of a few stress cracks, I am extreamly pleased with the was the gel turned out. It shines again! here are a few pics.
I do not really have any before pics, but in this pic You can kinda see the dullness of the gel.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #31 on: June 20, 2014, 10:08:23 AM »
A few more.


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Just Electric

  • Karma: +28/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #32 on: June 20, 2014, 10:17:38 AM »
Nice when can I drop my vdrive off for you to wet sand and replace the stringers


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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #33 on: June 20, 2014, 10:29:21 AM »
V- drive! Justin, you going to the dark side?
Doh! I guess I'm on the dark side, with an i/o!
Bring it on out, we will fixer right up! 
We will have it converted to jet, in no time!


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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #34 on: June 20, 2014, 10:47:28 AM »
Well every body loves motuh pics!


Mercruiser likes to paint theire engines solid black and they have no color at all. So while I had the engine out , I thought i would purdy it up a bit.
One of the first things that had to go is the cast iorn log exhaust and Y-pipe!

When I baught the boat a couple years ago, the previous owner said that the engine had just been freshly rebuilt.
So I flipped it over and poped the pan, to have a look see at what i really had.
I was pleasantly surprised to see that it is a 4 bolt block.

I tried to get a glimpse of the cam, but hard to tell.

Roller Rockers and Edlebrock Performer intake and a stock marine quadrajet carb.





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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #35 on: June 20, 2014, 10:51:26 AM »
I powdercoated the pullies and timing cover and alternator adjuster arm, with some shiny chrome powder , from Eastwood co.

I painted the block with Rustolean Chevy red orange, the waterpump with Rustolean aluminum and cleaned up the intake.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #36 on: June 20, 2014, 10:59:25 AM »
All the paint was worn off of the carb, so i gave it a couple coats of black appliance epoxy paint.
because of the new EMI Thunder exhaust, I had to buy a different thermostat housing. I was lucky and found a brand new one still in the box,
on e-bay, for 50 bucks. these things usually go for around $300.

Got the EMI manifolds on. I also had to go a different rout with the alternator bracket. Not 100% sure that is going to work untill I get it back in the boat.

And to top it off a nice polished aluminum 15" oval air cleaner. Thanks Ralph!
Now at least the engine has a little color and wont look so humm drum.






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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #37 on: June 20, 2014, 11:10:47 AM »
The engine is back in the boat.

I do have some issues with the new exhaust. The risers are too long and I will probably have to cut them, unless I can find some one to trade for a set of turn down risers.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #38 on: June 20, 2014, 11:13:04 AM »
This is what I need to do. If I cut the riser, I can make the turns with some exhaust hose and some mandrill bends.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #39 on: June 20, 2014, 11:14:45 AM »
I also have interference with the engine hatch and will have to modify it, some how, to make it work.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #40 on: June 20, 2014, 11:19:47 AM »
My risers are essentially the same as this short riser, only with a longer tail pipe.

That last pic, is really what i need, to the tune of $1400!




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #41 on: June 20, 2014, 11:23:15 AM »
Ok, so here is the plan.

I am going to cut the outer tube, then cut the inner tube, take a section out of the inner tube to shorten and weld the flare end back on. Then take a section out of the outer tube, to shorten and then weld the piece with the finnished end back on. With Me? Ok lets get started !





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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #42 on: June 20, 2014, 11:30:26 AM »
First I used a 4" pipe cutter, to cut the outer and inner tubes.

I took the risers to the boat to fit and measure what i need.

I took some measuements and took them back to chop them up.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #43 on: June 20, 2014, 11:35:23 AM »
I broke out the chop saw and went to work. i cut the pieces to the lengths i needed

This is how it all stacks up and will look like when welded back together.




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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #44 on: June 20, 2014, 11:42:42 AM »
Alright, I got the risers all welded back together. I mocked them up and it looks like things are going to work out.
I might have left them a litle longer than i needed to, but I wanted to leave a litle length to them.




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rush1

  • Karma: +18/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #45 on: June 20, 2014, 01:08:19 PM »
That came out clean

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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #46 on: June 20, 2014, 03:04:11 PM »
interesting "studs" with the turning fin... great progress.  man id love to have a belly tank.  how many gallons is it?

I think the tank is about 40-45 galons, maybe 50. I honestly cant remember righ of hand, because its been a while since i filled it up.
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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #47 on: June 20, 2014, 03:33:11 PM »
Nice thread Hal :) all these numbers you speak of 1708 etc etc care to elaborate lol.


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Hey Justin, i would love to elaborate. I gives me a woody, talking about fiberglass! ;D
   1708, is a  E-glass Biaxial cloth, with chop strand mat backing.
The fiberglass tows are held together by light nylon stitching, as well as the mat backing.
The flat non-crimped fibers give reduced print-thru and higher stiffness than other woven fabrics

The mat backing adds extra thickness and makes for a smoother finished product, as well as a goog bonding layer, because glass cloth, with out a first layer of csm, tends to peel.
Now before you go scratching your head! E- glass is basicly, your every day, woven glass fabric and chop strand mat.
 Biaxial, means that the tows, or strands run at a bias, to each other, which in the case of 1708, the strands run at +/- 45* to each other. With chop strand mat(CSM), the strands run random directions to each other and held together witha bonding agent that is disolved in the resin.
Biaxial fabric takes on compound shapes or curves, better than a 90* woven fabric.
By the way tows, are a bunch of strands, grouped together, in one direction.
The number 1708 means it is a 17oz biaxial fabric, with a 8oz chop strand mat, sewn to the back.
1708 is ideal for repairs, tabbing, and reinforcing.
Hope that helps. I am not an expert by any means! I have just used alot of glass and done ton of research on it.

« Last Edit: June 20, 2014, 04:23:02 PM by holorinhal »
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Just Electric

  • Karma: +28/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #48 on: June 20, 2014, 04:11:52 PM »
Now that's the informative Hal I know. I've always had the vdrive it sits in my parents garage til I get around to fixing the stringer. And ps since you gave me chit I started a build thread for ya :)


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holorinhal

  • Karma: +9/-0
Re: 81 Spectra 20 Face lift Project.
« Reply #49 on: June 21, 2014, 02:00:01 PM »
Now that's the informative Hal I know. I've always had the vdrive it sits in my parents garage til I get around to fixing the stringer. And ps since you gave me chit I started a build thread for ya :)


Sent from my dirty buthole

Yea I have been checking you out! That is some nice work, you have been doing on that Sprint.
You some one else we know, is probobly chomping at the bit, to out do you, on his!... ;D
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