Jeep CJ 1945-1970 Repair Information

Fuel Filter

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REPLACEMENT



Early 4-134 and All 6-226

See Figures 1, 2, 3 and 4



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Fig. Fig. 1: The fuel pump/filter assembly is mounted on the lower left-hand side of the engine (arrow)



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Fig. Fig. 2: Loosen the retaining screw ...



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Fig. Fig. 3: ... push the retaining screw and wire off to one side ...



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Fig. Fig. 4: ... then lift the cover off of the pump-the screen/filter is under the cover

Most of these engines have a fuel pump with a bowl containing a replaceable filter element. Some have only a mesh strainer in the fuel pump.

Late 4-134, 6-225 and 6-230

See Figure 5



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Fig. Fig. 5: When installing a new fuel filter, make certain that the fuel flow indicator marks on the filter point in the correct direction

All these engines have a throwaway cartridge filter in the line between the fuel pump and the carburetor. To replace it:

  1. Remove the air cleaner as necessary.
  2.  
  3. Put an absorbent rag under the filter to catch spillage.
  4.  
  5. Remove the hose clamps.
  6.  
  7. Remove the filter and short attaching hoses.
  8.  
  9. Remove the hoses if they are to be reused.
  10.  
  11. Assemble the new filter and hoses.
  12.  

The original equipment wire hose clamps should be replaced with screw type band clamps for the best results.

  1. Install the filter, tighten the clamps, start the engine, and check for leaks. Discard the rag and old filter safely.
  2.  

 
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