Search found 521 matches

by jtschug
Mon Mar 18, 2019 6:24 am
Forum: 1964-1966 Modified/Custom Thunderbirds
Topic: Speedometer gear w/ radials?
Replies: 14
Views: 277

Re: Speedometer gear w/ radials?

Yes, you need one more tooth, but you should check how many teeth the gear has now. I don't think you can be sure what you have is a 16 tooth gear. These cars have had a lot of changes over 50+ years
by jtschug
Mon Mar 18, 2019 6:16 am
Forum: 1964-1966 Thunderbirds
Topic: Front Grille
Replies: 6
Views: 160

Re: Front Grille

The part in the link is for a 64-65, not a 66
by jtschug
Thu Mar 14, 2019 1:53 pm
Forum: 1964-1966 Modified/Custom Thunderbirds
Topic: Speedometer gear w/ radials?
Replies: 14
Views: 277

Re: Speedometer gear w/ radials?

If you are having trouble with the math, just post how far the car went and the time it took and what the constant speedo speed was and I can calculate it for you.
by jtschug
Thu Mar 14, 2019 1:47 pm
Forum: 1964-1966 Modified/Custom Thunderbirds
Topic: Speedometer gear w/ radials?
Replies: 14
Views: 277

Re: Speedometer gear w/ radials?

First, calculate exactly how far off your speed is. I use mile markers on the highway and a stopwatch. Maintain a constant indicated speed, i.e. 60MPH, and go 3-5 measured miles. Then calculate your actual speed. And see how far you are off. As an example, let's say you went exactly 5 miles in 6 min...
by jtschug
Thu Mar 14, 2019 10:47 am
Forum: 1964-1966 Thunderbirds
Topic: Charging system
Replies: 4
Views: 103

Re: Charging system

I am currently running a 75 amp alternator from and 1974 Lincoln, with a matching solid state voltage regulator. I chose this because it still uses an external voltage regulator and requires very few modifications to get it to work properly. A little bit of tweaking at the wire harness on the back o...
by jtschug
Wed Mar 13, 2019 6:50 pm
Forum: 1964-1966 Thunderbirds
Topic: 1964-later Engine ID Tags - Pics Needed
Replies: 5
Views: 201

Re: 1964-later Engine ID Tags - Pics Needed

I have an aluminum tag off a Mercury 410 that was installed in a '66 Q-code T-bird parts car I had. It is certainly an original Ford tag, but I don't know which vehicle it came from. It says "410" on it, so I assume it goes with the engine. It was a verified 410 with Mercury script valve covers and ...
by jtschug
Wed Mar 13, 2019 9:44 am
Forum: 1964-1966 Thunderbirds
Topic: best plug gap
Replies: 3
Views: 90

Re: best plug gap

If memory serves 0.035" I think that is the same as the '66 shop manual spec
by jtschug
Sat Mar 09, 2019 3:32 pm
Forum: 1964-1966 Thunderbirds
Topic: Top end horse power increase
Replies: 7
Views: 180

Re: Top end horse power increase

How much do you want to spend?

My suggestion if you want to do Edelbrock, would be the Performer RPM, intake, cam, and heads. Also headers, I used the FPAs.
by jtschug
Mon Mar 04, 2019 11:48 am
Forum: 1964-1966 Thunderbirds
Topic: column shifter roll pin STUCK
Replies: 10
Views: 255

Re: column shifter roll pin STUCK

Make sure they are using the correct size punch. There is also a special roll-pin punch that centers itself on the pin that works best
by jtschug
Mon Mar 04, 2019 11:45 am
Forum: 1964-1966 Thunderbirds
Topic: open door for heat
Replies: 9
Views: 257

Re: open door for heat

There is a mushroom shaped valve plumbed in the heater hose under the hood that controls the flow of hot coolant through the heater core. If you just hook the vacuum port on that directly to the engine manifold, it will be wide open all the time and you will have full heat.
by jtschug
Mon Mar 04, 2019 7:17 am
Forum: 1964-1966 Thunderbirds
Topic: open door for heat
Replies: 9
Views: 257

Re: open door for heat

There is no heat door like a newer HVAC. It is easier than that. Hook up a vacuum line from the engine to the heater valve On the passenger shock tower. Then you will have full heat all the time.
by jtschug
Sun Mar 03, 2019 12:18 pm
Forum: 1964-1966 Thunderbirds
Topic: Heater core
Replies: 14
Views: 406

Re: Heater core

Two things kill heater cores: 1) lack of antifreeze causes it to freeze and rupture or old antifreeze with exhausted corrosion inhibitors and 2) blown head gaskets overpressurize the coolant blowing out a seam. This also destroys a lot of overflow tanks. Change the antifreeze every few years and kee...
by jtschug
Thu Feb 28, 2019 12:54 pm
Forum: For Sale Thunderbirds and Thunderbird Parts
Topic: '66 428 Engine parts
Replies: 2
Views: 225

Re: '66 428 Engine parts

Yes, the heads will work on a 390, but D2TE heads are not original to '66 428 engines. These have hardened seats for unleaded gas. May have lower compression as well. D=1970s 2=1972 T=Truck E=Engine AA=First production design revision
by jtschug
Tue Feb 26, 2019 10:02 am
Forum: 1964-1966 Thunderbirds
Topic: Power steering
Replies: 6
Views: 260

Re: Power steering

Brake fluid swells, and eventually dissolves rubber seals. Yes, first it will stop leaking, then it will start leaking from everywhere. Power steering pump, power steering gear, windshield wiper motor, hoses. For the shade tree mechanic, it stops leaking long enough to get paid, and it causes more f...
by jtschug
Tue Feb 26, 2019 7:40 am
Forum: 1964-1966 Thunderbirds
Topic: Map Light Switch
Replies: 19
Views: 590

Re: Map Light Switch

Wow! $100! I think I can retire :-) I would sell one of my spare used switches for a lot less than that. This summer I bought a whole clock pod (with the lever assembly attached) at a swap meet for $50 just to get a working clock. I’ve got at least 3 extra switches around here and one if not all of ...