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Old 12-26-2011, 09:15 AM
Registered User
Join Date: Aug 2010
Location: Batavia Il.
Posts: 4
6.9L support

I'm currently starting work on a 6.9L (engine only) I've been to several web sites for engine gaskets, but only the 4.5L gaskets are available.does anyone have a source for engine gaskets? I have yet to contact MB, I was trying to avoid that.The engine ran when it was removed from the car 8+ years ago@ 138,00Km.After removing the valve covers and oil pan the internals look pretty good. The engine is the European version with the higher output and higher comp. I think it's worth the effort but I don't want continue if I can't find the gasket etc..I'd rather not disassemble it but the ocd in me tells me to check every tolerance before trusting it. Any suggestions?

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Old 12-26-2011, 09:41 AM
Registered User
Join Date: Dec 2002
Location: New Castle County, DE
Posts: 1,078
try for the club, and (Rusty or Tom) for parts.
'79 6.9 Sold (after 27 years)
'83 280SL, 5 spd.
'94 E320 Sdn. 5 spd conversion
'02 E320 Sdn.(on loan to mom!)
'87 300E (5 spd. conversion) Sold
'05 E500 Wagon
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Old 12-26-2011, 10:13 AM
engatwork's Avatar
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 13,248
Have you tried Phil at the 800 number listed above?
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Old 12-26-2011, 10:25 AM
Registered User
Join Date: Aug 2010
Location: Batavia Il.
Posts: 4
6.9L support

Thanks much for the response. No, not yet, as I mentioned I'm just getting started. I'll try all the suggestions once regular business hours resume.
thanks again
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Old 12-27-2011, 10:03 PM
cth350's Avatar
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Join Date: Dec 2000
Location: Long Island, NY
Posts: 4,183
new 6.9 specific parts are ONLY sourced from two places... Rusty's and the classic center. There are no after-market parts. Only those two sources can supply new things like gaskets and the like.

For FI parts, and you will need those, most of the CIS parts are identical to any 3.5, 4.5, 3.8 or 5.0 before the days of the EHA and the frequency valves. Compare the ports on the fuel distributor with any used one you acquire and make sure it is plumbed with the same connections. If so, they're interchangeable.

One final word of warning, the things are not cheap and the prices will add up fast. For instance, the metal line that connects the fuel distributor to the UOR is thick in the middle and thin on the ends. That metal line is rubber lined to cut down on fuel pressure waves and is not at all cheap, but that rubber does decay, so you will need it eventually.

Search the site for advice on CIS, you'll find plenty, especially for things like rebuilding and repairing the fuel distributor and the WUR. A well adjusted 6.9 pulls like a passel of scalded cats. It's worth it.

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Old 12-27-2011, 11:18 PM
diametricalbenz's Avatar
The Crowbar of Embriage
Join Date: Oct 2004
Location: Marietta, GA
Posts: 3,510
Cats enjoy the prestige of a 6.9 more than any scalding.

Good luck with the rebuild, and please do photo document it. Such jobs seem rare these days.
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Old 01-01-2012, 08:20 PM
Registered User
Join Date: Oct 2011
Location: Chicagoland
Posts: 3
You definitely have to keep us updated. I'm right next door in north aurora, and I'd love to see a 6.9 flying down deerpath.

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