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240D Piston
Hey Kids!
Spent the day disassembling my '83 240D that had bad blowby and low compression in the no. 4 cylinder. The piston of said num 4 cylinder is a disaster. 2 bad ring lands. Looked like somebody has been in there before and just slapped new rings on an iffy piston. Anyway...i need a piston. 500 bucks is alot of money for a new one. I was wondering if anyone might have one for sale. OR, know what the compatability is with other engines. I found a '76 240 in the junk yard and a number of 300D s. Does anyone know of interchangeability between various models for this time period? i'd like to know beforehand before spending a lot of time in a junk yard trying to get a piston out. Thanks, Dale |
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T walgamuth might have some..IIRC He had some for sale
any of those W123's with black interior(with electric windows)? |
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
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500 dollars for a new piston...It's hard to believe they could be that expensive. What would a new set and sleeve's cost with the ring set.
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[QUOTE=TheDon;1730218]T walgamuth might have some..IIRC He had some for sale
He sold em to me
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
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I have some I pulled from a refurb'd engine that was in my 80, if you can identify the pistons you have, this is what mine are:
On the underside of the piston head is cast: ++ 91V13 M251 MAHLE On the inside of the skirt is cast an MB star On top of the piston is stamped: 90.865 with a "0" under it. Near the deep hollow there is a 6 4 stamped sideways with an arrow symbol in between. On the opposite side of the hollow is stamped 709 T 112 sideways. Heres a few pics, I have 3 good ones, I used the bad 4th one to get the underside pic.
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Chris 64 190D R.I.P. 80 240D W/617 engine -for sale 82 240D -for sale |
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I also have three more and four turbo pistons. listed in parts.
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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#1 piston
I appreciate the response guys, I've gone ahead and cleaned the faces of the pistons off and the one i need to replace(no 4 cylinder) has a large 1 and 90,875 on it. If anyone has one, i'd pay you your price.
After looking at some documentation, i was curious as to why the #1 cylinder seems to have it's own set of specs separate from the other 3 cylinders. The bore is supposed to be a little bigger, even though the piston is suppossed to be the same size. Any ideas as to why this is? ALSO, need i be concerned that my #1 piston is different for the other three. This is what I have: #1 large 0 90,865 #2 large 1 90,875 #3 large 1 90,875 #4 large 1 90,875 I'm assuming that just means there is a .010 mm difference for no 1. When i put new sleeves in the block will that cylinder need to be honed differently? Thanks, Dale |
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$1,000 and up for a set for the 616..
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I am pretty sure I have both sizes of pistons for you. 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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there is a nice 78 280. I first saw it DEC 31, and it was complete& & nice. some one got the seats already, but the 4 door panels and arm rests are still there. I think the dash was almost perfect. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
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Are you still looking for a set of pistons for th 616...? I recently had a little bad luck- I bought a low miler 617 from a reputable guy and unfortunately it had been stored badly... Water had got in and rotted out nos. 3 pot liner badly. Shame because the other cylinders show very little wear, X-hatch pattern still clear all the way round. Anyway, to cut a long story short, my engine supplier is gonna supply a new set of oversize pistons so I can restore this engine. I'll therefore have 5 Std. pistons, 4 of which should be near perfect, the fifth with maybe corrosion damage--Not pulled it out yet, so not sure how bad that one is... The engine before it was removed from the car and stored under a tree in a monsoon had only 75K miles on.... Not sure of the shipping to U.S. from the UK, but it shouldn't be too bad if you still need some--best change all 4, for matching age/type/miles... Yours for the cost of shipping and a pint!
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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.... Last edited by Alastair; 04-17-2008 at 03:31 PM. Reason: addition |
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There are two different piston sizes for the W123, 240D. They made them a little smaller, .10mm as I remember, starting about 1980. Do you have a manual, Haynes is OK and cheap on eBay, or the online manual.
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??) |
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