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  1. Don C

    Asking for Help how I might repair or replace this H-Connector?

    You could take one of these and cut off the center piece, cut the crossover section off your EGR connector and braze it to the new tubes. https://www.affordablestreetrods.com/copy-of-steel-heater-hose-nipple-1-2-npt-25633951.html Another thought, what is the thread size of the connector? Is it a...
  2. Don C

    Engine build

    You didn't say anything about the valves. Do not use the stock multi-groove valves. They are two-piece and the heads are prone to coming off. Also, the locks on multi-groove valves are prone to coming off. Make sure you don't need new valve guides. Do not use the stock umbrella valve stem seals...
  3. Don C

    Electrical issue when cold

    Cold weather effects connectors, causing them to shrink, and causes old lubricant in switches to congeal preventing the contacts from making connections. The only things that are consistent with all of your symptoms are the ignition switch and the black with green hashed wire. The black with...
  4. Don C

    Gen 3 Coyote Swap Engine Covers Opinion Request?

    The full width coil covers with no engine cover. The coil covers are available in blue or black https://performanceparts.ford.com/category/40/Dress-Up-Kits https://performanceparts.ford.com/part/M-6P067-M50B
  5. Don C

    Resistor ignition switch wire

    The voltage at the battery will drop while the engine is cranking, a couple of volts is normal. So, if the battery is fully charged measuring the battery across the positive and negative terminals should show 10 or 11 volts. Less than 9.6 volts indicates a battery problem or a starter load...
  6. Don C

    Pitman arm help

    Energy Suspension now has a variety of ball joint boots: https://www.energysuspensionparts.com/universal-dust-boots.asp
  7. Don C

    Seat Belt Grommet

    Flip them over and then take the measurements of the part that actually inserts into the panel. From your photos it looks like most of the difference in the top is the width of the border.
  8. Don C

    Power Window Relay

    65-70 ohms sounds right for the resistance across the coil part of the electromagnetic switch (from the purple/yellow hash wire connector to ground)
  9. Don C

    Power Window Relay

    The center connector should be the 12-volt input to the relay from the circuit breaker, via the black/yellow dot wire and will not show any connection to ground. The only one that should show a connection to ground is the connector with the purple/yellow hash wire, which provides the "trigger"...
  10. Don C

    Anyone ever find a drag coefficient for our cars?

    The formula for calculating the drag coefficient is straight forward. However, the frontal area is required. Other things that are required are the density of the medium (air in this case) and the speed. Because the temperature and barometric pressure when the force measurement was taken are not...
  11. Don C

    Hidden Wiring

    I can't get to them, either. My suggestion is to assemble all of the pictures and descriptions into an article then print them into a PDF file and post the PDF article.
  12. Don C

    piston pitting

    Something else to check, I've seen camshaft bearings pit from condensation in engines that have sat for a while, both in and out of the car.
  13. Don C

    Trunk Divider

    It was common in this era for the only separation between the trunk and inside of the car was the back seat. In standard rear seat cars almost half of the full-size spare tire fit under the rear shelf right behind the rear seat back. The fold-down rear seat cars do have the separation (part of...
  14. Don C

    piston pitting

    The cylinder bores need to be checked for taper and out of round. I would check them before honing, if they are out of spec, no reason to hone them, will require boring.
  15. Don C

    Another FYI

    I got a sale flyer/catalog from Summit Racing the other day, and they are carrying things from smaller companies and suppliers. Two that caught my eye were disk brake adapter kits from Mustang Steve, and repops from Bob Drake Reproductions
  16. Don C

    Wiring Tips from Eastwood

    I got an email from Eastwood today that has some wiring tips. One of them is a 'why didn't I think of that' the last time I was trying to cut open a tape wrapped harness...
  17. Don C

    What is an "EGR Cutout Solonoid" and where is it physically?

    The vacuum hose diagrams may help, Here's some of them: https://7173mustangs.com/threads/vacuum-hose-diagrams.23844/ Look for the one for 2V 351s
  18. Don C

    Hello, My name is Steve, and I bought a classic car

    Here's some more for you to think about. These are spreadsheets I have put together over the years, Gives you an idea of what speeds and RPM you can expect on the highway in the Tire Sizes spreadsheet, the Speedometer Gears spreadsheet is closely associated with tire sizes, as well as rear end...
  19. Don C

    Hello, My name is Steve, and I bought a classic car

    Nothing wrong with that engine/transmission combo. Before you start on the engine you'll need to assess the overall health of it. Compression test all the cylinders. Connect a mechanical oil pressure gauge to see what kind of oil pressure you are getting at idle and 3,000 rpm, with the engine...
  20. Don C

    72 Q-Code Convertibles

    Try it again, although this address looks the same as the last one. https://7173mustangs.com/discussion-forum/marti-reports.59/ If it doesn't come up with the threads that have been posted try clicking "Forums" at the top left of this page, then go to "General 71-73 Discussion" and scroll down...
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