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Classic/Antique Car Repair/1950 Ford truck 239 motor firing order

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Expert: - 2/9/2008


Question
Rebuilding motor need firing order for 239 motor for 1950 ford f1

Answer
Spark Plug Make: Champion H10
Spark Plug Gap, Inch: .030
Firing Order: 15486372 (from front to rear: Right 1-2-3-4; left 5-6-7-8
Ignition Timing: Groove on Pulley
Engine Idle Speed, RPM: Manual shift trans. 475; automatic shift trans.: 440
Compression Pressure & Cranking Speed: 110 Min.

Cam Angle, degrees: 28
Breaker Gap, Inch: .014-.016
Condenser Capacity: .21-.25 Mfds.
Breaker Arm Spring Tension: 17-20 Oz.
Distributor Vacuum Advance Data:
Centrifugal Advance:
Part No. 7RA-12127C:
Degrees advance at 500 RPM: 1-1/4 - 2-1/4, Inches vacuum: .40
Degrees advance at 1000 RPM: 4-1/4 - 5-1/4, Inches vacuum: 1.7
Degrees advance at 1500 RPM: 6-1/4 - 7-1/4, Inches vacuum: 2.8
Degrees advance at 2000 RPM: 7-1/2 - 8-1/2, Inches vacuum: 3.7
Part No. 8BA-12127, OBA-12127:
Degrees advance at 500 RPM: 0 - 1, Inches vacuum: .30
Degrees advance at 1000 RPM: 5.2 - 6.2, Inches vacuum: 1.32
Degrees advance at 1500 RPM: 8-3/4 - 10, Inches vacuum: 2.85
Degrees advance at 2000 RPM: 10 - 11-1/4, Inches vacuum: 3.7
Brad  

Classic/Antique Car Repair

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Brad Sears

Expertise

All automotive including antique and collectible. However if the car has been modified I can only answer in general terms and maybe get you pointed in the right direction.

Experience

Automotive tech instructor. Syndicated auto columnist 1970's though the early 1990's. Syndicated auto radio talk show, Ask Brad About cars, CBS Radio 70's through 90's TV Show "Last Chance Garage" 1980's PBS-TV syndicated. Auto instructor for the following companies: Fram Autolyte Holly Carter AMF Ford Motor University Of Conn Blue Hills Technical School Sugar River Technical Center Grew up in a family garage in Needham Mass and turned wrenches from the age of 14.

Publications
Manchester Union Leader, Nashua Telegraph, Motor Service Magazine, Yankee Magazine, Popular Mechanics (Saturday Mechanic early 80's), Los Angeles Times, New York Times, and lots more.

Education/Credentials
More than I care to remember. Basically Franklin Technical Institute in Boston, Northeastern University, Fitchburg State Teachers College, Tufts University, and a lot of factory schools along the way.

Awards and Honors
Moto Award winner. And much more.

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