Wheelguru,

I would suggest that you check compression on the engine before you consider tearing down to replace one piston because if the compression is low on all cylinders and one cylinder gets a new piston and good compression it would throw off the power balance of the engine. But, if the engine has good compression I would not hesitate to tear down the engine for one piston. You can access the front two rods through the sump. So if it is one of the front two it is as easy as pulling the head and the sump and fixing the problem. But you know if it is another piston you are going to be pulling the engine and may as well rebuild the whole engine. Well good luck.

Matthew

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1993 300D 2.5 Turbo (blue/ blue tex)
1991 350SDL (White/ Gray leather)
1983 300TD Turbo 5-speed manual (Green/ Beige)
1985 300SD (Black/ Black Leather)
1985 300TD (White/ Green Tex)
1980 300SD (Astral Silver/ Black Leather)
1990 560SEL (White/ Gray Leather)
1993 300SD (Black/ Black Leather)
1967 200D (Green/ Beige Tex)
1969 300SEL 6.3 (Moss Green Metallic/ Green Leather)
1975 300D (Astral Silver/ Green Tex)
2001 Ford Excursion Diesel