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#1
11-22-2023, 12:33 AM
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67 M 129
Anyone know the " HEAD GASKET " elring part # for a 1967 Mercedes SE with the M129 Motor ? or the Mercedes Part number would work I expect I could go from their.
( I see the Gasket on line but no part number > My personal experience is that with the Correct part number you can often find the best price that way with such a number < like the small number right on the Gasket sometimes also I understand the Newer Type gasket has a red stripe sealing strip on the spark plug side and tend to leak water as they become old . they may have the same Part number tho ? IE New and Old gasket I wonder if that Motor is junk also ? was 1 of the first SE type motors before the M130 that of course has several Variants / Heads etc Got a line on this 67 have not inspected yet but look like it might not be rusty / the say it runs good Humm I doubt it > I see Head gaskets on line just over $200 but i bet I can beat that all to heck but the red strip has concern water leaks etc My Guess is a M129 is practically a Prototype Motor ? Anyone had one are they Crap ? Last edited by aluminum; 11-23-2023 at 08:19 PM. 
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#2
12-05-2023, 03:53 PM
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I think the M129 engine is pretty solid.
I have only heard of 2 gas w111s with million mile badges, both of them were 250SEs with the m129 engine. Here is one of them: https://motoarigato.blogspot.com/2014/05/million-mile-250se-coupe-is-socal.html?m=1
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#3
12-06-2023, 10:26 AM
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Is it the one with an aluminum block? If so very desirable.
__________________
[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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#4
12-07-2023, 10:59 PM
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Not a prototype, in fact, it's 3rd variant of the M180 line of motors, 2nd to be fuel injected.
Time line is here: https://en.wikipedia.org/wiki/Mercedes-Benz_M180_engine They just didn't make a lot of them because the went up to the 2.8l soon after. I wouldn't worry about the gasket weep much either. Far more important is having a machinist that knows what they are doing with it. There is another thread here from a few years back about trying to get 250SE head gaskets and how the manufacture was willing to do another run of them just as soon as the demand picked up. -CTH
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#5
12-07-2023, 11:56 PM
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Quote:
The M189 is Aluminum Block was used in the 300 SEb I think 65 / 67 Adenauer The Combustion Chamber is in the Block they are a different twist The Look is great they are huge in fact
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#6
12-09-2023, 01:59 PM
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That M189 motor is in the parts car we were discussion earlier this year. -CTH
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