Recent Posts

1

Electrical / Re: Clock Power

« Last post by roadking77 on Today at 11:54:55 AM »

Didnt think about that, Could I use my battery charger with the positive and negative lead on each post? 
I have used that method before to test other components like the blower motor, window motors etc.

2

Electrical / Re: Clock Power

« Last post by b_hill_86 on Today at 07:08:49 AM »

If you were to remove the cluster you could fairly simply connect power and ground to the clock directly to test

3

Second Generation 1970-1981 / Re: Fuel and brake line clamps

« Last post by roadking77 on Today at 06:56:22 AM »

Looks good to me!

4

Electrical / Re: Clock Power

« Last post by roadking77 on Today at 06:54:56 AM »

When I restored my 77 I sent my clock out for a restoration service. It was rebuilt as original although he did offer a quartz upgrade, new stem etc. It has never worked, although everything (well almost, no speedo and no tach) else works the clock has never worked?

5

Electrical / Re: Clock Power

« Last post by b_hill_86 on Today at 06:34:55 AM »

I did forget to mention there is a quartz conversion available for the electromechanical clocks. I installed one in my 77 before I realized I could get my original working. It keeps good time till it stops randomly. I have to tap my gauge face to get it going again. I’ve heard of a few others having the same issue

6

Second Generation 1970-1981 / Re: Fuel and brake line clamps

« Last post by Wallington on Today at 06:25:18 AM »

A quick follow-up, finally got around to doing this bracket. I tried a couple of times in steel strip and wasn't happy with the bends, even when heated with a torch. I ended up using thicker aluminium strip and didn't worry so much in copying since it was still an estimate and would need to be bolted in place.

Firebird LH floorpan fuel brake line saddle bracket bare aluminium and satin black (4) by Ben, on Flickr

Oven-baked black.

Firebird LH floorpan fuel brake line saddle bracket bare aluminium and satin black (2) by Ben, on Flickr

Test fit minus the lines. Horrible looking floor!

Firebird LH floor pan fuel brake line bracket only (2) by Ben, on Flickr

I had to cut a patch out of the Dynamat insulation to install flat-head bolts. Mastic sealing washers were used to compress when tightened.

Firebird LH floor pan fuel brake line bracket before after bolt seals (4) by Ben, on Flickr

Finished setup. Thanks to Willie for the pics to base some ideas from.

Firebird LH floor pan fuel brake line bracket installed (6) by Ben, on Flickr

Firebird LH floor pan fuel brake line bracket installed ( by Ben, on Flickr

7

Electrical / Re: Clock Power

« Last post by Wallington on Today at 05:09:26 AM »

The 77 clock and tacho is available repro in Quartz form, the 79+ type is not. As Brian said, there's kits for the clocks if needed, I don't think the clocks were available new outside of the complete tacho. The components of the clocks are not interchangeable, new or used. They stay with the tacho type, round rear is early, flat sided oval rear is 79+, even if clock doesn't say Quartz. Lettering appeared later to confirm

8

Electrical / Re: Clock Power

« Last post by b_hill_86 on Today at 05:02:29 AM »

The 77 vs 79 clock and tacho are both different units but believe they are wired up similarly. Tacho is separate, 2 wires, does its own thing. Clock is grounded through the case/rear of tacho mounting plate with an insulated live feed off the circuit board that runs from the main harness plus. There is a ground also through the main harness, doesn't require the strap to the gauge cluster body if the harness is plugged in.

Beat me to it while I was typing lol

9

Electrical / Re: Clock Power

« Last post by b_hill_86 on Today at 05:01:35 AM »

Clock power comes through the large connector on the back of the gauges and through the printed circuit. Separate from the tach.

The 70-78ish clocks are electromechanical. I think I made a post showing the differences between those and the late 78-81 quartz clocks. If not I can post it here later. Anyway, the early clocks usually need one of two things. Either they need lubricated or there’s a set of points that wears out and prevent it from functioning which I don’t believe can be repaired by the average joe. Possibly by a professional clock repairer though.

Tach has its own harness for function separate from the printed circuit

10

Electrical / Re: Clock Power

« Last post by Wallington on Today at 04:58:31 AM »

The 77 vs 79 clock and tacho are both different units internally but believe they are wired up similarly. Tacho is separate to clock, 2 wires, does its own thing. Clock is grounded through the case/rear of tacho mounting plate with an insulated live feed off the circuit board that runs from the main harness plus. There is a ground also through the main harness, doesn't require the strap to the gauge cluster body if the harness is plugged in.