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Search took 0.03 seconds. Search: Posts Made By: Geoff
Forum: Electrical Tech 08-12-2023, 02:11 AM
Replies: 13
Views: 788
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
Views: 1,146
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
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
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
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
Views: 1,642
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
Views: 2,532
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
Views: 4,400
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
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
Views: 3,669
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
Views: 4,201
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
Views: 3,669
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
Views: 3,669
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
Views: 3,669
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
Views: 1,899
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
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
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
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
Views: 2,012
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
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
Views: 4,899
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
Views: 4,899
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
Views: 4,281
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
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
Views: 2,744
Posted By Geoff
Summit have spacers for fronts, not sure about...

Summit have spacers for fronts, not sure about rears.
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