I'm assuming I can do this, but I would like to "run it by the board" just to make sure....can I swap a head from an 85 123 TD (sedan) to an 85 TDT (wagon)? They look identical, and there is a bolt (plug) on the 85 sedan head which looks like it is where the self leveling susp. pump for the wagon will mount (I've never removed the pump so I dont know what the mount/drive looks like).

Thanks,

Mark

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1984 300TD Wagon, 407,800 mi (current daily driver)
1985 300DT Sedan, 330,000 mi (gone to that great autobahn in the sky)

Pictures would help.
Someone may have put a wagon head on the sedan for some reason.

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1985 300SD
1983 300D
1984 190D
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pretty sure the wagon has a unique head with a bolt pattern for the leveling pump. The sedan has a bolt that also pilots the idler sprocket shaft there, IIRC, but I'm not sure.

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'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.

Thanks Pete....I suspect you may be correct. I will have to do a little exploratory wrenching....too bad if this is the case....I have a good head on the old sedan with a recent $1,000 valve job...I need to replace the head gasket on the wagon and I was hoping to put the good head with new valves, guides, springs, seals, etc.....

Mark

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1984 300TD Wagon, 407,800 mi (current daily driver)
1985 300DT Sedan, 330,000 mi (gone to that great autobahn in the sky)

are different but same as any car with leveling suspension, i think. if there were other models... i dont know of any us model diesels with leveling susp but not sure.

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.

wow, that's a spendy valve job for a 5 cyl! well, you could have new guides + seals in the wagon head and have it ground for maybe about a buck and a half, then transfer the new valves + springs yourself.

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'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.

Dont valves need to be cut and seated (sorry my lack of specific terminology), or can I just do this myself..(isnt this called "lapping").
Also, where would you have guides installed...any engine rebuild shop? mercedes specific shop?

Thanks again,
Mark

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1984 300TD Wagon, 407,800 mi (current daily driver)
1985 300DT Sedan, 330,000 mi (gone to that great autobahn in the sky)

85 300D equals sedan.
85 300TD equals wagon.
Having straightened that out, based on your description the answer is "maybe".
A normal 300D head will not work, as of course the wagon needs an opening for the hydraulic pump. The exception to this would be a Euro sedan, in which some had the proper opening for the hydraulic pump, but would bolt a plate over this opening. Also I believe some Euro sedans had a hydraulic rear suspension. (at least some Euro 240's for sure)
Since you had that extra 'T' in your description of your sedan, I'm assuming it is a turbo, which would make it unlikely to be a Euro.
So, more to the point, NO! more than likely.........

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

the valves yourself, i believe it would be best for the machine shop to instlal the new valves. they will cut the seats and top off the tops of the valves to match so everything keeps in the proper location.

i will explain further if desired.

tom w

oh well... if the seats are ground and the valves not topped (ground off a little) then the valves will sit higher and affect the adjustment available. also i believe they will shim the springs so that the travel on the springs are not changed.

__________________
[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.