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Coolant replacement on a 66 Shelby Mustang

Started by deathsled, June 12, 2024, 10:27:45 AM

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Bob Gaines

Quote from: deathsled on June 13, 2024, 11:29:19 PM
Quote from: Bob Gaines on June 13, 2024, 11:26:42 PM
Quote from: deathsled on June 13, 2024, 11:06:50 PMI spliced the Pertronix red module wire to the yellow 12 volt wire and left the resistor wire on the positive and now the car only turns over but does not fire.  It actually sounds like my Saleen Mustang when I removed the rotor from the distributor to prevent easy theft.  I can change back to the three wires again on the positive and shop around for a dual points distributor me thinks.
I would use a multimeter and check your yellow power wire for 12 volts with the key on. It sounds like you are not getting power to your module.
Okay.  I will have to buy a multimeter. Then I will see.  These issues are interesting for me, getting into how things work.
Harbor Freight has a inexpensive digital one for 6.99!
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

S7MS427

Richard,

Multimeters can also be had cheaply at both Lowe's and home depot.
Roy Simkins
http://www.s-techent.com/Shelby.htm
1966 G.T.350H SFM6S817
1967 G.T.500 67400F7A03040

shelbydoug

Simple answer. Dual points. Yellow top. Problem solved.

Someone explain it to me? How is the Petronix the problem solver? Even a single point is better then this nightmare.
68 GT350 Lives Matter!

Royce Peterson

The backup lamp circuit does not have 12V+ when the engine is cranking so the car will never start.
1968 Cougar XR-7 GT-E 427 Side Oiler C6 3.50 Detroit Locker
1968 1/2 Cougar XR-7 428CJ Ram Air C6 3.91 Traction Lock

Bob Gaines

Quote from: Royce Peterson on June 14, 2024, 03:44:59 PMThe backup lamp circuit does not have 12V+ when the engine is cranking so the car will never start.
That would explain things.
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

67350#1242

Re posting diagram from earlier Pertronix thread.  Hook it up this way and it will work right.
67 GT350  SJ 02/01/67  Gray 4spd A/C
67 Coupe  SJ 11/16/66  White Auto A/C PDB

S7MS427

Quote from: 67350#1242 on June 14, 2024, 08:12:25 PMRe posting diagram from earlier Pertronix thread.  Hook it up this way and it will work right.

Agreed. This is how I have mine wired on my '67. I have never had a bit of trouble in using it for over 20 years. If you are nervous about failures, carry an extra breaker plate, points, and condenser in the glove box.

Did I mention how much I hate setting points?
Roy Simkins
http://www.s-techent.com/Shelby.htm
1966 G.T.350H SFM6S817
1967 G.T.500 67400F7A03040