Manual Swap an Automatic 1973 280 - Mercedes-Benz Forum

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post #1 of 16 (permalink) Old 09-19-2015, 07:50 PM Thread Starter
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Manual Swap an Automatic 1973 280

Hi, I'm new to the forum, so please excuse me if I happen to get something wrong here, but I'm looking to swap a 4 or 5 speed manual transmission to my 1973 280. I've searched google for some time now and can't seem to get a straight answer on a good procedure. Now I'm fairly good with cars and usually have no trouble working on them, it's just I don't know enough about transmissions to do this successfully quite yet. I would like some help on determining which transmission I should look for and of course clutch, flywheel, etc. Thanks!
-Karoshi209
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post #2 of 16 (permalink) Old 09-20-2015, 07:44 AM
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Is this a W108 280SE, W108 280S, W114 280, W114 280E ...?

Currently: 1967 250 SL, 1963 220Sb, 1965 300SE Lang, 1971 280SE parts car, 1972 Alfa GTV, 1965 Alfa Duetto, 1993 BMW R100R
Past: 1971 250 C, 1985 300 TD, 1967 250 S, 1968 280 S,1981 300 D, 1982 280CE, 3 Facel Vegas, Borgward Isabella Coupe, Alfa 2600 Sprint, Volvo P1900 (yes), numerous less interesting Volvos, ...
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post #3 of 16 (permalink) Old 09-20-2015, 08:58 PM Thread Starter
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It's a W114 280
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post #4 of 16 (permalink) Old 09-20-2015, 09:09 PM
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Too bad you probably aren't near Philadelphia. I pulled everything from a 1975 240d manual trans car and I'm trying to get rid of the full conversion kit:
- radiator (no trans fluid cooler)
- flange from 240d, same as m130 and m110.
- bell housing, clutch, flywheel,
Slave cylinder
- instrument cluster
- pedal assembly
There a more in the box, including all the nuts and bolts.

.

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post #5 of 16 (permalink) Old 09-20-2015, 09:11 PM
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Quote:
Originally Posted by Karoshi209 View Post
Hi, I'm new to the forum, so please excuse me if I happen to get something wrong here, but I'm looking to swap a 4 or 5 speed manual transmission to my 1973 280. I've searched google for some time now and can't seem to get a straight answer on a good procedure. Now I'm fairly good with cars and usually have no trouble working on them, it's just I don't know enough about transmissions to do this successfully quite yet. I would like some help on determining which transmission I should look for and of course clutch, flywheel, etc. Thanks!
-Karoshi209
Well you shouldn't have a problem finding a mani trani to bolt up to the M110 as that engine was available in other model cars with either a 4 or 5 speed.

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ils peuvent aller se faire mettre

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post #6 of 16 (permalink) Old 09-20-2015, 09:21 PM Thread Starter
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Believe it or not, I'm about 3 hours from Philly.
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post #7 of 16 (permalink) Old 09-20-2015, 09:22 PM
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Originally Posted by nobby View Post
Well you shouldn't have a problem finding a mani trani to bolt up to the M110 as that engine was available in other model cars with either a 4 or 5 speed.
I would think a manual transmission car with an M110 engine would be fairly rare in the states.

https://en.wikipedia.org/wiki/Mercedes-Benz_M110_engine

Yeah, looking at the applications for an M110 I tend to think almost all of those are going to be non-US spec cars.

But if all the parts are the same as on a W123 240D (which surprises me) then finding THAT with a manual transmission should be easy. Still I think it's probably the wrong flywheel...

Currently: 1967 250 SL, 1963 220Sb, 1965 300SE Lang, 1971 280SE parts car, 1972 Alfa GTV, 1965 Alfa Duetto, 1993 BMW R100R
Past: 1971 250 C, 1985 300 TD, 1967 250 S, 1968 280 S,1981 300 D, 1982 280CE, 3 Facel Vegas, Borgward Isabella Coupe, Alfa 2600 Sprint, Volvo P1900 (yes), numerous less interesting Volvos, ...
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post #8 of 16 (permalink) Old 09-20-2015, 09:23 PM Thread Starter
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Originally Posted by nobby View Post
Well you shouldn't have a problem finding a mani trani to bolt up to the M110 as that engine was available in other model cars with either a 4 or 5 speed.
As I imagined. I just needed to make sure that the other M110's didn't have a different area where the flywheel bolted up and what not. I wanted to make sure that nothing changed. So what car do you think I could pull one of these out of?
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post #9 of 16 (permalink) Old 09-20-2015, 09:23 PM
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Originally Posted by Karoshi209 View Post
Believe it or not, I'm about 3 hours from Philly.
Well there you go! Fonzi, will he still need a different flywheel?

Currently: 1967 250 SL, 1963 220Sb, 1965 300SE Lang, 1971 280SE parts car, 1972 Alfa GTV, 1965 Alfa Duetto, 1993 BMW R100R
Past: 1971 250 C, 1985 300 TD, 1967 250 S, 1968 280 S,1981 300 D, 1982 280CE, 3 Facel Vegas, Borgward Isabella Coupe, Alfa 2600 Sprint, Volvo P1900 (yes), numerous less interesting Volvos, ...
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post #10 of 16 (permalink) Old 09-20-2015, 09:24 PM Thread Starter
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Quote:
Originally Posted by Scoot View Post
I would think a manual transmission car with an M110 engine would be fairly rare in the states.

https://en.wikipedia.org/wiki/Mercedes-Benz_M110_engine

Yeah, looking at the applications for an M110 I tend to think almost all of those are going to be non-US spec cars.

But if all the parts are the same as on a W123 240D (which surprises me) then finding THAT with a manual transmission should be easy. Still I think it's probably the wrong flywheel...
I don't mind having one shipped from overseas. I just need to get an idea of where I can get one.
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