Prechamber seals for 606: Are they needed when rebuilding the head? - PeachParts Mercedes-Benz Forum

ROLLGUY · #1 08-02-2016, 11:15 AM

I am replacing the head gasket on my friends '99 E300 (OM606), and will be pulling the prechambers to have the head machined. I searched for the availability of prechamber seals on PP, but nothing came up. Is there in fact prechamber seals on a 606? I assume there should be, especially since the head will be milled, I again assume thicker seals will be needed. Anyone have info on this? Thanks in advance, Rich

Hario · #2 11-24-2016, 02:14 PM

Quote:

Originally Posted by ROLLGUY

I am replacing the head gasket on my friends '99 E300 (OM606), and will be pulling the prechambers to have the head machined. I searched for the availability of prechamber seals on PP, but nothing came up. Is there in fact prechamber seals on a 606? I assume there should be, especially since the head will be milled, I again assume thicker seals will be needed. Anyone have info on this? Thanks in advance, Rich

No, just a 'heat shield' sealing washer between the injector base and the prechamber

ThatOne · #3 11-24-2016, 02:36 PM

Quote:

Originally Posted by ROLLGUY

I am replacing the head gasket on my friends '99 E300 (OM606), and will be pulling the prechambers to have the head machined. I searched for the availability of prechamber seals on PP, but nothing came up. Is there in fact prechamber seals on a 606? I assume there should be, especially since the head will be milled, I again assume thicker seals will be needed. Anyone have info on this? Thanks in advance, Rich

a quick perusal of the OM606.961 engine parts list shows A 601 017 02 60 - 0.6 mm, A 601 017 03 60 - 1.0mm, A 601 017 04 60 - 0.3 mm as the spacers used to rectify prechamber tip over protrusion into the combustion space after and as a result of cylinder head surfacing.

The MB dealership lists them for $8.50 each

dieselbenz1 · #4 11-24-2016, 03:10 PM

Would you mind posting a few pictures when you pull them please.

ROLLGUY · #5 11-24-2016, 07:21 PM

Quote:

Originally Posted by dieselbenz1

Would you mind posting a few pictures when you pull them please.

I already got the head on and the car back on the road. I can't remember if I took photos, but I will look in my ipad. I used no spacer rings or seals, as only about .006 was removed to clean up the head.