Restoring a 1965 GTO convertible tri power - Page 2 - Pontiac GTO Forum
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post #11 of 49 (permalink) Old 04-02-2018, 10:03 AM Thread Starter
 
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Attached are a few pictures of the main electrical setup I installed (MAD Electronics) :
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1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie
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post #12 of 49 (permalink) Old 05-11-2018, 09:42 PM Thread Starter
 
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So I spent a fair bit of time on the the intake manifold, valley pan, carbs, and heater box (along with pulleys and brackets), but I think they came out nicely so the time was well spent .

The manifold and valley pan were primed with a DHT ceramic enamel and then painted with the Pontiac Blue (Duplicolor) - two coats of primer and three coats of color.

The carbs were rebuilt with the help of a wonderful and inexpensive kit from Pontiac Tri Power 1959 -1965 Rebuild Kits (3) | Pontiac Tripower. The carb rebuild was rather straight forward, but the prep time to disassemble and clean the old carbs took a lot of time, TLC, and patience. Prior to putting the carbs back together, I painted them to best mimic the factory finish. I know some will object, but again, in my humble opinion they look great. (As of typing, I have not fired up the car, but I cannot wait to see how it runs and whether the bog has been eliminated. I will be checking the jetting with a wideband, and using the wideband for idle mixture.)

The heater box was a mess and required a fair bit of sanding (more than I suspected on the inside and was a real pain in the a$$). On the inside of the heater box I used an Eastwood rustproofing spray designed for frame rails (long tube to get inside) and then a two step process on the outside (Eastwood Rust Eliminator + Eastwood Satin). Again, I think it looks a ton better than it did before....

Finally, I stripped, sanded, and painted the pulleys and brackets using the DHT enamel primer and DHT semi-gloss enamel engine paint. These came out OK, not great (and I re-did twice). Not sure why, but the paint was reacting and kept wrinkling.
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1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie

Last edited by cij911; 05-11-2018 at 10:03 PM.
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post #13 of 49 (permalink) Old 05-12-2018, 03:33 AM
 
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Looks nice cij, thank you for sharing and enjoy your classic when you finish it.
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post #14 of 49 (permalink) Old 05-12-2018, 02:41 PM
 
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cij911: "Finally, I stripped, sanded, and painted the pulleys and brackets using the DHT enamel primer and DHT semi-gloss enamel engine paint. These came out OK, not great (and I re-did twice). Not sure why, but the paint was reacting and kept wrinkling."

PJ: Welcome to the world of EPA reformulated spray bomb paints. I created a thread on just this subject. Very frustrating trying to get a smooth good finish if you spray the paint like we used to. Yep, looks great, nice and glossy/shiny so you go and spray another top coat, or even clear to get some depth, and you watch the paint "crinkle" and "craze" on you once nice part. Sanding it down to get rid of the defect and respraying only brings the poor qualities back, or worse, adds a few more of the imperfections you were just trying to get out! LOL

Here is what I learned. Spray your paint, let it stand about 5 minutes to dry slightly, and then hit it with another coat - being careful not to overload the paint so you get runs, but not too little that you get a dry spray look either. If you want to clear it, wait another 5 minutes and hit it with clear.

It used to be you would wait about 20-30 minutes for the paint to dry a little and then re-spray -this does not work with these paints. And if you think the primer should help, it doesn't. Tried several different types. What I found best is the metal etching spray bomb primer. It is a green in color when sprayed. It will dull out to more of a flat green when it gets near to being dried out - doesn't take too long. When you see the change, hit it with your color coats as above.

The other way is to spray your color and then let it sit for about 2 weeks so that ALL the slow drying solvents evaporate and the paint hardens. Then you can put another cover coat or clear on, but again, not too heavy or guess what?

I found spray bombing my brackets & pulleys very frustrating and had to fight with them to get a good finish. I finally accepted that a few were going to have to be OK with the minor blemishes and I don't suspect too many people will see them anyway - its just that I know about them. LOL

The other option is purchasing paint from the local autobody/paint supplier and spray painting with a spray gun. I have all the equipment to do this, but didn't care to go through all that just for brackets & pulleys as mine is not a show car and spray bomb was cheaper and more convenient.
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post #15 of 49 (permalink) Old 05-14-2018, 12:09 AM Thread Starter
 
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PJ - Exactly the same experience here....I too finally settled, but my OCD may have me back at them again soon. I will just have to see what it looks like when everything is back and assembled.

1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie
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post #16 of 49 (permalink) Old 05-27-2018, 08:36 AM Thread Starter
 
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Well the engine bay is coming together....

I have the engine, valley pan, intake manifold painted and reinstalled. I also added phenolic spacers and new carb studs to eliminate any chance of fuel evaporation (bowl).

I have the rebuilt carbureutors installed.

I have cleaned up the 10 dn alternator and re-installed.

I have added a Holley fuel regulator with gauge (the tri powers like to run on 3 psi !!!).

I have cleaned up the radiator core support and surrounding area.

The steering gear box is out and a rebuilt unit with ~12.7:1 will be going in - this should really help steering feel.

I may rebuild the steering pump before re-installing (I painted it already).

I will be touching up the fender liners and firewall.

Attached is a before and after picture .
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1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie

Last edited by cij911; 06-11-2018 at 09:25 PM.
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post #17 of 49 (permalink) Old 06-11-2018, 09:30 PM Thread Starter
 
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Added a new fuel pump, rubber lines, and fuel tank.

I think she is now ready for paint.....

I've been waiting for this day for a long, long time (well not that long).....So now the debate is what color....

Original was Mission Beige and while I have seen some nicely restored Mission Beige, I really want something with more pop. I am leaning towards a graphite gray, but fontaine blue and mayfair are still possibilities. I am going for an aggressive rest mod look (slightly lowered with bigger wheels and tires). Recommendations / opinions ??

1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie
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post #18 of 49 (permalink) Old 06-11-2018, 09:36 PM
 
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Originally Posted by cij911 View Post
Added a new fuel pump, rubber lines, and fuel tank.

I think she is now ready for paint.....

I've been waiting for this day for a long, long time (well not that long).....So now the debate is what color....

Original was Mission Beige and while I have seen some nicely restored Mission Beige, I really want something with more pop. I am leaning towards a graphite gray, but fontaine blue and mayfair are still possibilities. I am going for an aggressive rest mod look (slightly lowered with bigger wheels and tires). Recommendations / opinions ??
Always like the dark metallic gray's. I like what I call a "platinum gray" which was used on later model Corvettes - sorta a bright gray, yet still dark.
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post #19 of 49 (permalink) Old 06-12-2018, 08:58 AM Thread Starter
 
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Originally Posted by PontiacJim View Post
Always like the dark metallic gray's. I like what I call a "platinum gray" which was used on later model Corvettes - sorta a bright gray, yet still dark.
PJ - Thanks for your help (again)!

What about Corvette Ceramic Matrix Gray Metallic (looks almost off white) or Shark Gray or Watkins Glen Gray Metallic?

Value wise, will painting the car a non-original color hurt the value and/or is there a difference changing one factory color to another vs. a random color ? (i.e.. factory mission beige vs. mayfair vs. corvette shark gray) ?

Another color I just found was from 67' - Pontiac Silver Glaze Metallic....Thoughts ???

1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie

Last edited by cij911; 06-13-2018 at 09:33 AM.
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post #20 of 49 (permalink) Old 07-25-2018, 09:12 AM Thread Starter
 
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Well, I have postponed paint & interior until ALL mechanical items are complete. The motor and transmission are running great. I did install a set of gold Mr. Gasket springs (part #927 - thanks Lars!) on the distributor to bring in full advance earlier. I have also adjusted my timing down, closer to factory specifications - I am at 8* (full advance is ~34* by 3500 rpm).

At this point I am about to replace the front and rear suspension, along with installing the massive LS1 disc brakes (98-02 Camaro SS or Corvette). The wheels and tires I selected are the AR Torque Thrust II (polished) - 17x8 front (245/45/17) and 17x9.5 rear (275/40/17). Tire-rack guarantees the front will work, the rear will be tight (test fit this weekend).

Front suspension is aftermarket front control arms (upper & lower), Viking coilovers (550#) w/ heim joint, and 1" sway bar (stock ??); rear suspension is Spohn control arms with heim joint (del sphere) joints all around for optimal movement, Viking coilovers (150#) w/ heim joint, and no sway bar for now.

Brakes are from an LS1 and have new Powerstop discs and pads (~13" rotors IIRC) and am using an 8" dual brake booster / master cylinder combination. In addition I will be installing a CVR vacuum pump and Summit Racing vacuum canister (as my motor only pulls ~ 12" vacuum).

I can't wait to get the suspension and brakes installed and dialed in, as the car should drive like an entirely different animal. Wish me luck!

1965 GTO Convertible 3 speed tri-power drum brakes originally

Current setup:
400 cu in with tri-power
4 speed Muncie
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