I know what o-rings they're talking about. I replaced all my fuel delivery pipe orings two weeks ago on my 95 606. There are two sizes (I have the part numbers at home). I think that there are about 8 or 9 total orings not counting the oddball that fits on the fuel prefilter.

A couple of the fuel pipes have metal fittings (with crush washers) on one end and plastic fittings (with orings) on the other. I only replaced the orings - not the crush washers. This job was a snap with the intake manifold and cossover pipe removed.

A key piece of information to changing orings on a 606 is to know that you have to push the white horseshoe shaped plastic clip onto the pipe to remove the fitting. The horseshoe must make a ringer. (learned that on this forum years ago) Clip stays on the fitting. Try to remove it and you'll break it.

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