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PY Online Forums - Bringing the Pontiac Hobby Together
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Showing results 1 to 25 of 59
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Posts Made By:
hgerhardt
Forum:
THE LOBBY
02-29-2024, 01:13 PM
Replies:
2
Ac hose help
Views:
223
Posted By
hgerhardt
I replaced the hoses on my '66 GTO about 15 years...
I replaced the hoses on my '66 GTO about 15 years ago and I remember it was straightforward. The hoses I replaced were the factory worm-drive clamped ones, not the crimped ones.
First, make sure...
Forum:
Heating & Cooling TECH
02-23-2024, 05:13 PM
Replies:
2
Constant tension spring clamps for 5/8" heater hose...
Views:
457
Posted By
hgerhardt
Spring clamps are great. On my Sling A/C project,...
Spring clamps are great. On my Sling A/C project, I just went through this exercise. You measure the OD of the hose (in the relaxed state, not over a nipple), and get that size clamp. For 5/8" Gates...
Forum:
68-69 GTO Tempest & LeMans TECH
12-12-2023, 07:15 PM
Replies:
14
Source for Vented Gas Cap?
Views:
1,100
Posted By
hgerhardt
The factory put a separate vent on those A-body...
The factory put a separate vent on those A-body tanks for a reason: the filler is so low that under hard acceleration, fuel will come out if the cap were vented. Firebird/Camaros get away with a...
Forum:
Electrical Tech
12-10-2023, 03:34 PM
Replies:
12
Lights intermittently brighten then go back to normal
Views:
4,205
Posted By
hgerhardt
I'd blame the voltage regulator if you see this...
I'd blame the voltage regulator if you see this problem with both the headlights AND the instrument lighting at the same time.
Forum:
Pontiac - Race
12-08-2023, 01:36 AM
Replies:
1
AN fitting question
Views:
492
Posted By
hgerhardt
You could also do a Tee with swivel at #2 and...
You could also do a Tee with swivel at #2 and then use an NPT-swivel adapter, but that would make the assembly longer. These are Parker part numbers. Also take note of how the ports are numbered on a...
Forum:
69-77 Grand Prix TECH
10-11-2023, 03:40 AM
Replies:
7
Air Condition options
Views:
1,093
Posted By
hgerhardt
I'd get a new, not rebuilt A6 compressor from...
I'd get a new, not rebuilt A6 compressor from Alma Products (they own the GM tooling for that compressor). These new A6's also have a lip seal instead of the original porcelain/steel one. And they...
Forum:
77-81 Firebird & Trans Am TECH
09-26-2023, 05:50 PM
Replies:
15
79 Trans Am AC system restore stock? or aftermarket?
Views:
1,033
Posted By
hgerhardt
And there's the problem. I said get a NEW one...
And there's the problem. I said get a NEW one from Alma Products, who own the original GM tooling. They are not cheap, however:...
Forum:
77-81 Firebird & Trans Am TECH
09-25-2023, 04:28 PM
Replies:
15
79 Trans Am AC system restore stock? or aftermarket?
Views:
1,033
Posted By
hgerhardt
Since the under-dash parts and evap are the most...
Since the under-dash parts and evap are the most complex sub-assembly of all, I'd use that and piece together the rest of the parts underhood.
To avoid the aftermarket, kludgy compressor/mount,...
Forum:
Pontiac - Street
08-08-2023, 01:15 AM
Replies:
398
Pontiac V8’s: Retrofitting GM Roller Lifters
Views:
70,461
Posted By
hgerhardt
Yup, I learned that in 2001 or so. I had 87cc...
Yup, I learned that in 2001 or so. I had 87cc E-heads on a 428 with a 248/254@ .050, 114 solid roller, and that setup ran best with 87 octane fuel, and slowed down with 91. From that experience, I...
Forum:
Pontiac - Street
08-01-2023, 01:44 PM
Replies:
6
65 with ram air - almost hydro locked after rain storm
Views:
778
Posted By
hgerhardt
Thanks for the public service announcement...
Thanks for the public service announcement reminding everyone with a Ram Air pan to ensure that there are a pair of 1/4" drain holes in the pan around the filter element.
Forum:
THE LOBBY
07-24-2023, 06:09 PM
Replies:
90
New Digs in Tennessee
Views:
5,231
Posted By
hgerhardt
Speaking of flying things, would be really nice...
Speaking of flying things, would be really nice if your lot were big enough to build a 2500' runway which could double as a dragstrip...
...
Forum:
EFI Tech
07-23-2023, 08:37 PM
Replies:
23
Multi-Port (Sequential) Fuel Injection on a Pontiac Engine?
Views:
2,843
Posted By
hgerhardt
Thanks! Yeah, I designed and fabricated it...
Thanks! Yeah, I designed and fabricated it myself. Drew it on AutoCAD and machined the reluctor on a 2-axis CNC Bridgeport. The sensor is a Cadillac Northstar crank trigger. I removed .100" from the...
Forum:
Pontiac - Street
07-05-2023, 03:14 PM
Replies:
37
blower motor fuse keeps blowing/melting fuse
Views:
1,801
Posted By
hgerhardt
x2 for that type of fuseholder. I did that for my...
x2 for that type of fuseholder. I did that for my '66 GTO about 30 years ago.
These fuseholders were used in GM cars from the '80's and are available as a GM-Packard replacement part:...
Forum:
EFI Tech
06-20-2023, 10:43 PM
Replies:
23
Multi-Port (Sequential) Fuel Injection on a Pontiac Engine?
Views:
2,843
Posted By
hgerhardt
I did check it out...nice! One thing mine...
I did check it out...nice!
One thing mine does not do is look stock. However, it's good entertainment to stand 6' from the car at a show and watch the people do double-takes and try to figure out...
Forum:
EFI Tech
06-20-2023, 07:01 PM
Replies:
23
Multi-Port (Sequential) Fuel Injection on a Pontiac Engine?
Views:
2,843
Posted By
hgerhardt
It's a great idea and many of us have already...
It's a great idea and many of us have already done it and reported about it here! I suggest you spend some quality time in the archives of this forum. I remember at least one guy adapted a GM ECU to...
Forum:
THE LOBBY
06-01-2023, 12:13 PM
Replies:
24
I know I bought that thing, not this thing
Views:
2,055
Posted By
hgerhardt
Situations like these are known as the "joys of...
Situations like these are known as the "joys of the golden years".
Forum:
THE LOBBY
05-22-2023, 07:02 PM
Replies:
47
Can't argue with any of this:
Views:
3,084
Posted By
hgerhardt
I'd go further and say the Olds diesel reputation...
I'd go further and say the Olds diesel reputation ruined the ENTIRE US (car) diesel market for decades.
Forum:
THE LOBBY
05-21-2023, 01:40 PM
Replies:
47
Can't argue with any of this:
Views:
3,084
Posted By
hgerhardt
American-made V8 engines are among the best...
American-made V8 engines are among the best engines from the Big Three; even today, they continue to use a cross-plane-crank setup, which is why they sound so different from their European...
Forum:
Pontiac - Street
03-06-2023, 12:42 PM
Replies:
33
Belt shredder and pump eater
Views:
2,193
Posted By
hgerhardt
Notice how much deeper your PS belt is in the...
Notice how much deeper your PS belt is in the grooves than the alternator belt? You need to get a wider belt for the PS so that the top of the belt is even with the pulley. I was fighting that same...
Forum:
66-67 GTO Tempest & LeMans TECH
03-06-2023, 12:26 PM
Replies:
34
Question on aluminum radiators
Views:
2,820
Posted By
hgerhardt
I've had a Griffin in my '66 GTO for about 12...
I've had a Griffin in my '66 GTO for about 12 years now. Painted the top tank black and to me looks stock. Looking at the backside, you can see the welding at the base of the tank, but not that...
Forum:
Pontiac - Street
11-03-2022, 09:22 PM
Replies:
56
Is it worth the effort to upgrade to new 4 wheel discs?
Views:
3,816
Posted By
hgerhardt
The last B-body rotor that was 1.25" thick was...
The last B-body rotor that was 1.25" thick was the '76 and earlier. The '77-'96 B-body rotors were 1.10", both for the 11.5" and HD 12" dia. My '89 9C1 Caprice had the 12" x 1.1 rotors with a 5x5.0...
Forum:
Pontiac - Street
10-13-2022, 10:43 AM
Replies:
157
If You run Diesel Oil or Racing Oil in Your Pontiac, You May Want to Read This....
Views:
15,488
Posted By
hgerhardt
Well, it turns out that the TDS you found for T4...
Well, it turns out that the TDS you found for T4 15W-40 is an obsolete one. Link to the newest formulation:...
Forum:
THE LOBBY
10-08-2022, 04:49 PM
Replies:
5
Interesting Pontiac intake ... I'm scratching my head.
Views:
1,008
Posted By
hgerhardt
That's for an early Dualjet (primary side only of...
That's for an early Dualjet (primary side only of a Qjet). The later Dualjets did away with the secondary side entirely.
Forum:
68-69 GTO Tempest & LeMans TECH
10-01-2022, 07:35 PM
Replies:
5
Resonators..... should I use them on my 68 Wagon
Views:
846
Posted By
hgerhardt
My '66 GTO has a solid roller with Doug's round...
My '66 GTO has a solid roller with Doug's round port headers with 3" exhaust all the way back. I used Dynomax Super Turbo mufflers which were fine drone-wise, but too loud. I added resonators...
Forum:
Pontiac - Street
08-30-2022, 01:33 AM
Replies:
20
Safe-T-Track "4 pinion" HD Nodular differential real world strenght?
Views:
1,667
Posted By
hgerhardt
Back when Pontiac Drag Days was a thing, we had a...
Back when Pontiac Drag Days was a thing, we had a racer with a '67 GTO with I think a 421 with a Doug Nash 5-speed and a 4-pinion diff in the '67 rear end. His favored launch technique was to...
Showing results 1 to 25 of 59
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