[Baron Von Zeppelin]

Verify if the builder used 160* or 180* or 195* thermostat.
I always use a 160* in all my old cars , and drill a 1/8" hole in the outer rim of the tstat as a "burp" relief to prevent any trapped air when refilling the cooling system.

And be sure to run 93 octane , preferably with some lead additive.

[RedDirtRoad]

The 1/8th inch hole is key
I do that as well.
Pontiacs run hot so like Baron says always use a 160

[JSchmitz]

Car looks fantastic. Hope you don't mind that I fixed your pic orientation...

[b-man]

Power top was a standard feature on the GTO and Le Mans, a manual top was standard on the Tempest custom. Manual top used large springs instead of hydraulic cylinders to counter the weight of the top mechanism, they’re easy to see but the chances of a GTO having them is s close to nil.

Probably in need of a pair of top cylinders and lines, at the very least the reservoir in the pump needs to be filled and cycled to bleed out any air. Fluid puddles (usually automatic transmission fluid sometimes brake fluid depending) under the back seat are a sure sign of a leaking top cylinder.

If you’re getting power to the top motor/pump you should be able to hear it running even without the top operating. Top switch may be bad or any number of things.

[Jeff Hamlin]

Ted, She looks really good.

I saw you were given the 1966 FISHER BODY MANUAL.
In it is a troubleshooting/test section for the folding top.

I would use it to figure out the top/motor issue. It may be something simple.
They're a pretty basic setup.

Cheers

[fyrffytr1]

I noticed you have a hood insulation pad installed on your car, You might try removing it and see if the car runs cooler. I removed mine thinking I was going to gt the car repainted a few years back, but that didn't pan out. The insulation broke when I took it out so I said the heck with it. I will get one later.
But, I immediately noticed the car ran much cooler. Do you have any shrouding around the radiator?

[Baron Von Zeppelin]

Wow it looks Great ! Really Great

There was a dealer service over the counter radiator shroud for the Non-AC cars.
Pretty sure it is reproduced in the catalogs.

Second the suggestion of coolant just over the tubes inside radiator.
It made it 70,000 miles with that set up , but no harm in getting it to cool even better.

The radios are easy to remove and bench test.
Spare speaker , and a metal clothes hanger plugged in as an AM antenna.

Just need a 12v test light and the manual to diagnose the top.

I'd either want it up 2 hairs in the rear , or down 2 hairs in the front.
Its begging for a set of RallyOne wheels

[Baron Von Zeppelin]

000 or 0000 steel wool cleaning of the windshield does wonders.
Follow with some high end car polish or Rain-X
The wipers will glide even when dry.

Do all my vehicles that way , old and new(er).

[242177P]

Originally Posted by Baron Von Zeppelin

The radios are easy to remove and bench test.
Spare speaker , and a metal clothes hanger plugged in as an AM antenna.

IIRC, you can hurt the stock radio using a
4 ohm speaker (factory is 10 ohm)

[Baron Von Zeppelin]

Originally Posted by 242177P

IIRC, you can hurt the stock radio using a
4 ohm speaker (factory is 10 ohm)

I think prolonged use of 4-8ohm speakers can be an issue.
But have never had any issues using them to test with.

[Baron Von Zeppelin]

This Barrier Blue GTO TriPower Convertible is going up for sale this Saturday at Mecum Auction in Florida.
Not much advance notice on that.

No engine or chassis pictures , and no detailed description.
Anyone have a good guess how much it might bid up to ?

https://www.mecum.com/lots/1148081/1...aa_id=692175-0

Has been about 1.5 years since this thread started.