Kerry:

The angle and the fact that the sealer is only leaking -- it still glues the thread down! The copper washer goes between the flange and the housing -- there is enough of a flat there to seal some, and it seems to prevent leaks. I don't know, Hans swears by it.

Shouldn't have any trouble with the sealer coming off, quite the opposite. You may have trouble getting the nipple out!

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!