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#1
09-25-2006, 03:52 PM
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heads diff on om617/om617a?
Are the heads diff on om617/om617a?
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42 
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#2
09-25-2006, 04:07 PM
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0m-617
Where did you see 617'A'
Engine nos, usually goes like, OM-617.912 or OM-617.952 The first is N/A the second is Turbo version....
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http://i190.photobucket.com/albums/z...0TDnoplate.jpg Alastair AKA H.C.II South Wales, U.K. based member W123, 1985 300TD Wagon, 256K, -Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.  W114, 1975 280E Custard Yellow, -Great above decks needs chassis welding--Really will do it this year....
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#3
09-25-2006, 04:13 PM
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Quote:
__________________
http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#4
09-25-2006, 08:03 PM
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Om617.91 and OM617.95 are non-turbo and turbo engines.
Yes, they are different. The turbo head has sodium filled exhaust valves to aid in heat dissipation.
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#5
09-25-2006, 08:55 PM
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To my knowledge there is no "A" nominclature.
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1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair 
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#6
09-25-2006, 09:51 PM
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Quote:
but if you install the sodium valves then you would have the same head? tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#7
09-25-2006, 10:00 PM
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Quote:
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#8
09-25-2006, 10:08 PM
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There is also a different head on the engine in the TD. I think that maybe the head on the 617 they put in the vans was also different but I'm not sure about that.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#9
09-26-2006, 08:15 AM
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One possibly being one off a station wagon might have a slightly different code number as there is a provision for a hydralic pump incorporated. Someone out there should know.
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#10
09-26-2006, 08:31 AM
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i dont know the numbers but the wagon heads are definately different with the provision for the leveling system pump incorporated in them.
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#11
09-26-2006, 11:30 AM
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a for turbo, na for non turbo. it is just shorthand
simpler than typing out 617.912 and 617.951 and for the TD with the pump in the head 617.952
I would also like to know. I have a newly aquired 79 300TD and would like to transplant my turbo motor in, but the pump on the head makes me pause. I was thinking I could pull the TD na head and put the turbo motor block under it, then add the exaust and turbo to it, and go. BUT if there is a problem or compression dif with them, I may not get that farr. John
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#12
09-26-2006, 01:44 PM
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ok, just to confirm that winmutt isn't seeing things, I've definitely seen the 617A designation. I think it was military and/or marine application. Must have seen it on http://www.govliquidation.com/
or something. No idea what it means or if it's valid.
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1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD 1979 300SD 245K miles (never ending project) 2007 Pinarello F3:13 1995 Ducati 916 (SOLD, sniff) 1999 Ducati 900SSie (SOLD)
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