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Showing results 1 to 25 of 61
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Posts Made By:
Geoff
Forum:
Electrical Tech
08-12-2023, 02:11 AM
Replies:
13
Parking Light Current draw
Views:
800
Posted By
Geoff
Sounds like one of the LED lamps has developed an...
Sounds like one of the LED lamps has developed an internal fault & is drawing excessive current, which is blowing the fuse. Remove the LED lamps one at a time to see if it fixes the problem.
Forum:
66-67 GTO Tempest & LeMans TECH
04-07-2023, 02:24 AM
Replies:
15
1966 stock 4bbl intake and carb
Views:
1,150
Posted By
Geoff
MY 66, two speed auto, had a different carb than...
MY 66, two speed auto, had a different carb than in the pic. Carb had a large brass air screw in the front of the carb, which adjusted idle speed. There was no idle speed screw on the side of the...
Forum:
Electrical Tech
01-11-2023, 01:21 AM
Replies:
10
Negative Post Ohms to various grounds
Views:
1,398
Posted By
Geoff
The standard DVM is not very accurate at reading...
The standard DVM is not very accurate at reading low ohms. I have a special ' low ohms' meter for that purpose.
Forum:
Electrical Tech
02-01-2022, 01:43 AM
Replies:
13
Grounding to Engine Block
Views:
2,017
Posted By
Geoff
Gore, You are on the right track. Keep...
Gore,
You are on the right track. Keep going....
Forum:
Electrical Tech
01-31-2022, 04:56 PM
Replies:
13
Grounding to Engine Block
Views:
2,017
Posted By
Geoff
Dataway, Yes the body is made up of many...
Dataway,
Yes the body is made up of many parts. This is where two things are reqd: imagination & detailed electrical theory. Imagination because using the body as a ground cable [ it is ALREADY in...
Forum:
Electrical Tech
01-14-2022, 01:24 AM
Replies:
14
Headlights not working
Views:
1,643
Posted By
Geoff
Probably a missing ground strap[s] from the body...
Probably a missing ground strap[s] from the body work to the block.
Forum:
Electrical Tech
12-27-2021, 02:35 AM
Replies:
15
AM radio speaker resistance
Views:
2,537
Posted By
Geoff
Do NOT add a resistor. It would reduce max...
Do NOT add a resistor. It would reduce max volume available. This is about the maximum power transfer theorem.
Using a 7 ohm speaker with an amplifier designed for 10 ohm speaker will cause two...
Forum:
Electrical Tech
12-26-2021, 02:26 AM
Replies:
22
LEDS
Views:
4,403
Posted By
Geoff
Tried to explain this in post #4. LEDS need a...
Tried to explain this in post #4. LEDS need a dedicated LED flasher to work. I bought my LED lamps from SuperBrightLEDs. They are brilliant, pardon the pun. I also bought their recommended flasher...
Forum:
66-67 GTO Tempest & LeMans TECH
11-10-2021, 02:02 AM
Replies:
4
Spring spacers
Views:
1,316
Posted By
Geoff
2" spacer. Not a good way to increase ride...
2" spacer. Not a good way to increase ride height. Better fix is new springs or have the current springs reset.
Forum:
Suspension TECH
05-21-2021, 03:54 AM
Replies:
20
Low Vacuum
Views:
3,671
Posted By
Geoff
George, I come from 'back in the day' also...
George,
I come from 'back in the day' also & in this country back then, speed limits were unrestricted.
That has all changed now with max speed of 110 kph [ 70 mph ]. So I am no longer doing...
Forum:
Suspension TECH
05-16-2021, 04:50 AM
Replies:
21
Looking for some "Brake" guru"s
Views:
4,205
Posted By
Geoff
Judging by the tests you have done so far, it...
Judging by the tests you have done so far, it sounds like the booster & M/C are working.....as best they can.
Discs require about 50% more line pressure to achieve the equivalent stopping power of...
Forum:
Suspension TECH
01-09-2021, 03:23 AM
Replies:
20
Low Vacuum
Views:
3,671
Posted By
Geoff
Yes, driving in reverse & applying the brakes is...
Yes, driving in reverse & applying the brakes is how drum brakes with self adjusters adjust the brakes.
It would be a good idea to back off the adjustment slightly & then do the above self...
Forum:
Suspension TECH
01-08-2021, 02:26 AM
Replies:
20
Low Vacuum
Views:
3,671
Posted By
Geoff
Shoes adjusted too tight can definitely cause the...
Shoes adjusted too tight can definitely cause the car to pull to one side. More likely to happen once the car is driven for awhile & the shoe[s] heat up.
Shoes that are rubbing on the drum can be...
Forum:
Suspension TECH
01-07-2021, 03:12 AM
Replies:
20
Low Vacuum
Views:
3,671
Posted By
Geoff
The vac tank does not increase vacuum, it just...
The vac tank does not increase vacuum, it just 'stores' what vacuum there is.
So hopefully you will have enough reserve before you go under the rear end of that semi....
Forum:
Electrical Tech
12-18-2020, 02:38 AM
Replies:
12
1965 Transistor ignition coil numbers.
Views:
1,924
Posted By
Geoff
I have the info on 65 Tempest V8 coils. Trans...
I have the info on 65 Tempest V8 coils. Trans ign part # is: 1115215.
Points ign is 1115214
214 resistance pri: 1.81-2.01 ohms. Sec 7200-9500
215 #s: .42-.50. 8700-12,400
Forum:
66-67 GTO Tempest & LeMans TECH
10-30-2020, 02:17 AM
Replies:
4
GTO Stopped Running
Views:
606
Posted By
Geoff
The stock gear is cast iron, not steel. It...
The stock gear is cast iron, not steel.
It sounds like the engine might have had a roller cam at one stage, hence the bronze dist gear.
So all you need now is a stock dist gear.
Forum:
66-67 GTO Tempest & LeMans TECH
10-25-2020, 03:04 AM
Replies:
10
Complete 1966 GTO Front Drum Brake Setup: Whats it worth?
Views:
1,113
Posted By
Geoff
What 242 said..... All else being equal, a...
What 242 said.....
All else being equal, a drum brake of the type used on Pontiacs [ duo-servo design ] is more efficient than a disc brake. The energy of the drum rotating is used to wedge the...
Forum:
66-67 GTO Tempest & LeMans TECH
10-24-2020, 03:34 AM
Replies:
10
Complete 1966 GTO Front Drum Brake Setup: Whats it worth?
Views:
1,113
Posted By
Geoff
What 60sstuff said. So many perfectly good drum...
What 60sstuff said. So many perfectly good drum brake set ups being replaced...that don't need to be.
Forum:
Suspension TECH
10-04-2020, 03:23 AM
Replies:
6
Drum brake issue
Views:
2,013
Posted By
Geoff
No need to change to discs. Get some new brake...
No need to change to discs. Get some new brake shoes. The current ones sound like they are particularly sensitive to moisture/condensation, which is changing the friction characteristics of the...
Forum:
Suspension TECH
09-13-2020, 03:24 AM
Replies:
6
My Brake problem
Views:
1,347
Posted By
Geoff
With Detroit in love with cast iron, the wonder...
With Detroit in love with cast iron, the wonder metal, rust is the eternal enemy. It is likely that stroking the pedal to bleed the brakes has dislodged rust in the m/cl & cut the seal[s]. If you...
Forum:
Suspension TECH
05-25-2020, 05:52 AM
Replies:
20
New Rag Joint, Steering Box - Steering Wheel Misaligned
Views:
4,901
Posted By
Geoff
Pulsation/hard steering at low speeds is most...
Pulsation/hard steering at low speeds is most likely a pressure problem.
To increase pressure, you need to remove shims from the flow control valve, which resides behind the high pressure hose...
Forum:
Suspension TECH
05-24-2020, 05:12 AM
Replies:
20
New Rag Joint, Steering Box - Steering Wheel Misaligned
Views:
4,901
Posted By
Geoff
Pretty sure the s/box has 4 slots, so getting the...
Pretty sure the s/box has 4 slots, so getting the pitman arm position wrong will rotate the arm 90*. This would not be the problem.
If the steering wheel is out by half a turn, most likely the...
Forum:
Pontiac - Race
02-02-2020, 04:21 AM
Replies:
29
Comp Cams Sold?
Views:
4,282
Posted By
Geoff
MSD is part of the Holley umbrella. Recently...
MSD is part of the Holley umbrella. Recently looked at the instruction sheet for the MSD #8360 R-T-R dist. It states the vac adv unit requires '15 pounds of vacuum'.
I hope the people building the...
Forum:
64-65 GTO Tempest & LeMans TECH
11-02-2019, 04:26 AM
Replies:
4
389 build help
Views:
1,130
Posted By
Geoff
BBC rockers are too long for Pontiacs. You need...
BBC rockers are too long for Pontiacs. You need Pontiac rockers. If longer than stock valves are used, SB Ford rockers might work; they are slightly shorter than Pontiac rockers.
Forum:
Suspension TECH
10-04-2019, 05:41 AM
Replies:
13
Looking for an Inch.....
Views:
2,745
Posted By
Geoff
Summit have spacers for fronts, not sure about...
Summit have spacers for fronts, not sure about rears.
Showing results 1 to 25 of 61
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