Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1969CUSTOM 7.0L ENG VIN P, AUTOMATIC TRANS, TRANS MFR CD FMXREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALFUEL SYSTEMFORD CARBURETORS - (AUTOLITE) 4-BARREL MODEL 4100OVERHAULDISASSEMBLYMAIN BODY
1969 Ford Custom 7.0L Eng VIN P, Automatic Trans, Trans Mfr CD FMX
Main Body
1969 Ford Custom 7.0L Eng VIN P, Automatic Trans, Trans Mfr CD FMXSECTION Main Body
- Use screwdriver to pry float shaft retainers from fuel inlet seats, remove float, float shaft, and fuel inlet needle assemblies from each fuel bowl. Use a jet wrench to remove fuel inlet needle seat, gasket, and filter screen from each fuel bowl. Remove primary and secondary stage main jets using a suitable jet wrench.
- Remove primary stage booster venturi assembly and gasket, then invert main body and remove pump discharge weight and ball. Remove secondary stage booster venturi assembly and gasket. Remove accelerating pump rod retainer and remove rod.
- Remove pump cover retaining screws and remove pump cover, diaphragm assembly and return spring. If necessary to remove Elastomer (rubber) pump inlet valve from pump recess, grasp valve firmly and pull it out (if valve tip breaks off during removal, be sure to remove tip from fuel bowl). Discard the valve.CAUTION: New Elastomer valve must be installed whenever valve removed from carburetor. See REASSEMBLY .
- Remove secondary diaphragm operating rod, remove diaphragm cover, return spring, palnut (if used), and diaphragm. Invert main body to remove secondary ball check.
- Invert main body and remove power valve using a suitable box or socket wrench, remove and discard power valve gasket.
- Remove idle limiter caps then remove idle mixture screws and springs. Remove idle speed adjusting screw and spring. Remove anti-stall dashpot (if used).
- If necessary, remove fast idle adjusting lever assembly by removing nut and washer retaining assembly on primary throttle shaft.
- If it is necessary to remove throttle valve plates, lightly scribe plates along shaft and mark plates and bores so they may be reassembled in the same location. File off staking on valve retaining screws, being careful not to damage throttle shaft or venturi, then remove screws. Remove primary and secondary throttle valve shafts from main body. Remove accelerating pump over-travel lever from primary shaft.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.