Thanks Lupin, thats good to know. But now I have another problem... While trying to remove the old part some of it broke off and fell inside. It was broken flush with the valve cover and I got about a third of the ring out but the rest fell inside. I guess now I need to remove the valve cover and get that piece out? Do all the injector lines have to come off to open the valve cover enough to get to the piece that fell?

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Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K