Question about 2004 Ford F150
Since the 4.2L is a push rod engine, you have the 4.6L or 5.4L which the valve train system is the same. The lifter can be removed without removing the camshaft by using two special tools that can be purchased from any tool house that sells special tools in your area. Tool 1 is a spacer to prevent the valve from traveling too far (damage to seal), Tool 2 is a valve spring compressor, that uses the camshaft as a fulcrum to depress the valve and spring enough to remove the rocker assembly, use a plastic pen to determine piston location before using the compressor tool, you want the piston approximately 1-2 inches below TDC, once the rocker assembly is removed the lifter can be pulled out the top. It is very improtant that the rockers and lifters be kept together by location (ie. exhaust number 3 rocker and lifter together) and installed back in thier original positions. If you can not get the special tools, then the only other option is to remove the cams. Hope this helps, let me know
Posted on Jun 04, 2009
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Posted on Jan 02, 2017
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