Author Topic: Restoring my 76 GT-150  (Read 5325 times)

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Offline leoisright

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Restoring my 76 GT-150
« on: April 06, 2022, 09:28:02 PM »
Hello everyone.

First, thanks to all those before me that has posted anything and everything regarding the GT-150 and other models.  I've learned a lot and hope to bring an old girl back to life.

Last fall I stumbled across a 76' Bi-Centennial edition GT-150.  She was in rough shape and didn't know if it even ran.  I'll start uploading pictures as I go.  The plan is to keep it as original as possible.  This will take a few months to finish the interior so please be patient as I upload the progress.

I don't want to mess with the body too much.  I will eventually fill in the gelcoat with period correct gelcoat (I found some of the original colors still available).  if i can't replace like original or darn close.
« Last Edit: April 06, 2022, 09:49:46 PM by leoisright »
76' Glastron GT-150 Bicentennial

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #1 on: April 06, 2022, 09:30:50 PM »
Photos of the interior when I got it
76' Glastron GT-150 Bicentennial

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #2 on: April 06, 2022, 09:32:59 PM »
After a little pressure washing and adding a new emblem on the hood :)
76' Glastron GT-150 Bicentennial

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #3 on: April 06, 2022, 09:42:13 PM »
removed the carpet, side panels, and seats.  I'm going to look under the flooring in a few years.  It's solid across, no soft spots, and transom looks great on inside.  I'll worry about that restore at another time.  The engine runs strong so the plan was to get the interior done this year. I have to finish up the carpet and ski locker. 

One variation I am doing is making a Walnut ski locker door and Walnut dash panel.  I don't like the stickers.  Also adding GPS/Mapping/Structure scanning equipment (Lowrance HDS 10 w/structure scanning)
76' Glastron GT-150 Bicentennial

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #4 on: April 06, 2022, 09:45:41 PM »
Time for the seats to be restored.  Will be new wood/foam/plastic/vinyl with custom pleating to keep it close to the original white w/blue piping and blue pleated stripes.  Unfortunately mine were shot!  This is where the money is being invested this year!  Ouch!!
76' Glastron GT-150 Bicentennial

Offline Hyperacme

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Re: Restoring my 76 GT-150
« Reply #5 on: April 06, 2022, 10:12:33 PM »
You can use the bottom of the vinyl that wraps around and gets stapled to back of dash as a gauge to what color the blue was originally, it shouldn't be sun faded as bad as other exposed vinyl.
Try buffing gel with some compound and then wax, to see if shine ( more shine .. LOL ) comes back.
Are cracks in gel around transom / splash well area ?

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #6 on: April 06, 2022, 10:33:26 PM »
We picked out colors last week and used one in another thread for comparison. The vinyl was brittle and really faded.  My understanding it was a blue metallic color used back then and heat pleated material.  I did find some that looked like a match, but it was too expensive to be ordering 10 yards of what they wanted for it.

As far as the spider cracking.  None are around the transom and splash well area.  I was shocked at how solid the floor was.  But, I'm also aware that the stringers are going to be shot.  It was an expense I didn't have in the budget this year.  I semi restored a 72 V-156 then found this boat for $600.  They weren't sure if it ran 100% due to the missing fuel tank and battery.  But she fired right up when I tried.  So I sold the V-156 and decided to restore the seats in this boat and update the side panels.  The panels are going to be pleated as well, just sewn in vs heat.

Most of the spider cracks are on the hood and near the sides.  I'll be wet sanding it down, compound, wax, detail buff.  I'll wax 3 or more times once the shine comes back in the color.  I'm confident the color will shine. I have watched techniques on grinding out the spider cracks, put new gelcoat over it, then wet sand, compound, wax.  If I use the proper gelcoat (which I found the original), it can remain original as possible.

I wish we had the resources to break it down to the stringers and rebuild it.  Unfortunately that isn't in our immediate future.  I did feel it was important to bring her back the best I could without compromising the originality.  I'll save some of the vinyl for future reference.
« Last Edit: April 06, 2022, 10:37:17 PM by leoisright »
76' Glastron GT-150 Bicentennial

Offline carlsoncvx18

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Re: Restoring my 76 GT-150
« Reply #7 on: April 07, 2022, 03:55:54 AM »
Welcome to cgoamn.  Looks like your doing a awesome job on your boat! Keep us posted.   See there is a Minnesota registration where are you located?  Remember seeing one like that with the same motor on Crystal lake in Burnsville. 
« Last Edit: April 07, 2022, 04:13:49 AM by carlsoncvx18 »
1987 CVX18.     1968 Glastron alpha sail boat
1977 GT150
1986 CV23
1984 Intimiadator
1981 CV27
1969 V-180 fundeck

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #8 on: April 07, 2022, 07:35:25 AM »
 Live in Chaska and surrounded by the lakes :)  I know of another one up in St Cloud area.  This could have been the one you're referring too cause I got it last fall.
76' Glastron GT-150 Bicentennial

Offline Hyperacme

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Re: Restoring my 76 GT-150
« Reply #9 on: April 07, 2022, 11:50:59 AM »
Not sure if vinyl was " metallic"  ..  pictures I've saved of what look like original 1976 GT vinyl might be the "blotchy" colors.
Kind of blue with darker blue in color. Weird vinyl in a 1972 V156 pictured ..
As long as your replacing all vinyl, it should look great !

Will you be ready for the Red Wing Event ?

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #10 on: April 07, 2022, 07:24:43 PM »
Yeah, all the vinyl will be replaced with a darker blue and slightly off-white.  I had just sold a 72 v156 and using that money to have the seats redone and vinyl.

I'm really hoping to have it ready by June 1st for the water.  I'll ticker through the summer on smaller things, but will continue to bring it back as much as thr bank account allows.

I'll be ordering the original gel-coat here soon so I can have that to work on the body some.  Body is good overall though.

Here's the 72 I finished doing the interior.  Before and after pics.
« Last Edit: April 07, 2022, 07:27:50 PM by leoisright »
76' Glastron GT-150 Bicentennial

Offline Hyperacme

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Re: Restoring my 76 GT-150
« Reply #11 on: April 07, 2022, 07:43:49 PM »
I miss my V156 ..    :(

Before & after ..

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #12 on: April 09, 2022, 06:36:16 PM »
 I stopped by to look over the frames, foam, and hardware.  Smart to use them as templates and build new ones.  Mice nests inside.  Yuck. 

I spoke with the upholster and asked he Photo document the build process for the forum.  It may help someone that decides to use the blueprints from the other thread.

If anyone is looking for repairs and lives in MN or WI boarder, this guy is legit.  Will easily beat most prices, and quick turnaround.

He said they should be ready by the first of the month.  Below are the colors chosen.  Hand pleated and piping brought the price up about 15%.
« Last Edit: April 10, 2022, 10:01:57 AM by leoisright »
76' Glastron GT-150 Bicentennial

Offline Hyperacme

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Re: Restoring my 76 GT-150
« Reply #13 on: April 09, 2022, 07:00:21 PM »
We have a thread going here ..   http://forum.cgoamn.com/index.php?topic=3866.0
You can add his contact info there ..

I thinned down some resin and coated entire base, also put fiberglass around inside of corners.
Last time I looked .. burlwood vinyl was hard to find .. At least the dark stuff used in old Glastron's and Carlsons.

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #14 on: April 10, 2022, 10:04:39 AM »
I love that look! I haven't decided how to do the bases yet.  This is certainly and idea.  Then I could cover the ski locker door with it. 
76' Glastron GT-150 Bicentennial

Offline Hyperacme

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Re: Restoring my 76 GT-150
« Reply #15 on: April 10, 2022, 11:21:33 AM »
Most Glastron's and G/C used dark burlwood vinyl on dash, throttle board, seat bases, ski locker door, etc.
Maciej has repo's of most stuff for GT's ..   http://forum.cgoamn.com/index.php?topic=6395.0
He's also on many of the Facebook / Glastron groups.

Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #16 on: April 10, 2022, 05:09:59 PM »
Thanks for the reminder of his work.  I ordered the other raised emblem one from a different guy.

I'll order up some of this stuff. 
76' Glastron GT-150 Bicentennial

Offline Glastronjohn18

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Re: Restoring my 76 GT-150
« Reply #17 on: April 10, 2022, 06:12:58 PM »
Looks like you have a solid boat and a good start on your project.
John
'80 CVX 18 - Survivor Class
'78 CVX 18
'76 V 225 -   Bal Harbor
'80 V195XL
'86 CVX 18- And '86 Makes 3

Offline Hyperacme

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Re: Restoring my 76 GT-150
« Reply #18 on: April 11, 2022, 03:30:59 PM »
I've got stuff from him, very happy, great stuff ...  Maciej   ,, user name " hrabia-lolo " on forum ..

Glastron GT-150 dash panel and ski locker cover decals  /  Poznan, Poland  /  $68.00  Shipping: $6.00
https://www.ebay.com/itm/144498648946?mkevt=1&mkcid=1&siteid=0&mkrid=711-53200-19255-0&toolid=20008&campid=5335981329&customid=no-subcat

GT-150 dash panel and ski locker cover decals.
Hi again GT-150 Owners!:-)

During renovation works on my GT-150 I'm still working on another elements!
Now I have the honor to present to you my latest work - a set of GT-150 dash panel and ski locker cover decals!:-)
The dash panel and a ski box cover decals was printed on lamination vinyl to protect against water.

You can choose from two types od dash panel - with or without drawn elements in place of speedometer and tachometer. After purchasing send me a message which you have selected.
At the last pictures you can see the dash and ski locker decals on my boat.
For safe shipping everything is packed into a tube box.


Offline leoisright

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Re: Restoring my 76 GT-150
« Reply #19 on: April 13, 2022, 03:13:34 PM »
Pleating has begun. Decided on a single pleat to keep the order down.  These are foe the seats and the side panels.  Having 2 sheets that are 8"x132" and planning the boards at 4". .
76' Glastron GT-150 Bicentennial