I pulled my #2 injector because it seems to be the bad hole and the sealing ring (new last week) was burnt through between the crush portion (where the injector nozzle shoots through) and the sealing portion (where the injector seats) on the ring!!!!!!!!!!

WTFO is going on here? I just finished a 550 mile trip to the Bay Area.

Any ideas, I'm thinking injection pump. If the timing was out on this cylinder or if the pump is not edlivering fuel to this cyclinder in sufficient quantity then it would run lean and theoretically hot.
Could it be a bad prechamber or injector seat within the prechamber?

Anyone had this happen before???

here is the pic of the ring.

Attached Thumbnails

 

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'99 S420 - Mommies
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'78 Ski Nautique