What is involved in changing the valve stem seals on a M103 engine? My primary question is this: Does the camshaft have to be removed or can it be accomplished by simply removing the rocker arms as is done on the v8's. I have changed the seals on the single overhead cam V8 (420sel's) a few times and it is no big deal.

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I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k