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  #1  
Old 11-20-2014, 09:21 PM
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Trans Swap Pedal Question

I can buy a 1978 4 speed manual trans (looks like the old cast iron model), with master brake cylinder, flywheel, pressure plate and 240D auto trans support bracket, and the stick for a happy hand to push around. I even have an extra drive shaft that can be shortened.

However, the only pedal assembly that I can find at the moment is from a w115 engine. It looks pretty damn similar, can this be used on a w123 chassis?

Otherwise, I think that covers most of what's needed, all the other parts are new.

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1982 300TD 300,??? miles, daily driver turned donor
1982 300TD, 184,000 miles, daily driver
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  #2  
Old 11-21-2014, 04:07 AM
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Dunno for sure - I wouldn't be surprised if it was the same part - I also also wouldn't be surprised if it was different! I think you need to compare part numbers in EPC.
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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!
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  #3  
Old 11-21-2014, 05:09 AM
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Does it have a hook of some kind at the top? I think it can be made to work.
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Old 11-21-2014, 08:30 AM
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Quote:
Originally Posted by Stretch View Post
Dunno for sure - I wouldn't be surprised if it was the same part - I also also wouldn't be surprised if it was different! I think you need to compare part numbers in EPC.
EPC?
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1982 300TD 300,??? miles, daily driver turned donor
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  #5  
Old 11-21-2014, 09:29 AM
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Quote:
Originally Posted by ubertino View Post
EPC?
EPC is the electronic parts catalogue that you as a US resident can get for free (so long as you are prepared to let them have your credit card details to check you are not foreign like me!) via www.startekinfo.com <= make sure you are only getting EPC and not WIS - WIS the additional FSM information is not free at all!

If you don't fancy the credit card details situation then like me you can make use of the "Russian" EPC here =>

Index to Mercedes EPC Parts Info and Diagrams Everything Benz

The links from this site go to a Russian parts site that is not always a reliable source of information. It is unreliable in the way that sometimes the numbers on the pictures do not have parts numbers associated with them - so you then have to go and flatter the guy at the dealer parts counter...

...still the Russian EPC is quite a useful source for pictures. You can print out exactly what you want - go to the counter and tell the chap that you want "part 56 in this picture for this VIN" etc etc etc


EPC is good. Very good especially when you compare similar systems for other manufacturers.
__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!
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  #6  
Old 11-21-2014, 10:19 AM
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The pedals from the W115 chassis (not engine) do not fit the W123 chassis.

PM sent.

Last edited by Frank Reiner; 11-21-2014 at 03:45 PM.
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  #7  
Old 11-21-2014, 04:07 PM
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Quote:
Originally Posted by Frank Reiner View Post
The pedals from the W115 chassis (not engine) do not fit the W123 chassis.

PM sent.

Now Frank - ANYTHING can be made to fit ANYTHING but it likely isn't worth the effort. A trip to PnP might be in order. I didn't pull the pedal set from my 240D because I was using the S-10 set but mine wasn't the only 240D manual in that yard. Guess I'm saying that there's lots of stuff out there.

Dan
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  #8  
Old 11-22-2014, 03:17 AM
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I have a w115 pedal set in my w123. They are different, and it has been a few years, but I think it bolted right in.
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  #9  
Old 11-22-2014, 06:53 AM
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There are some pictures of the differences in this thread...

Every single thing you need to convert to a four-speed
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  #10  
Old 11-22-2014, 01:36 PM
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I suppose that having made a firm statement about the usability of the W115 pedal set, I should not be surprised to encounter a bit of remonstrance.

In the post by gatorblue are some good pictures of both the W115 and W123 pedal sets. They do both share the common MB firewall/booster mounting pattern, and at that point the W115 set can be bolted to the 123 firewall. The questions for any who would do so are:

1) Is there space for the torque brace at the top of the W115 set behind the W123 instruments, and to what would that brace be bolted?

2) If the W115 torque brace were to be cut off, what is to be substituted as a mounting point for the over-center spring? And how would the torque then be resolved?

3) The W115 pedals hang farther to the left (with respect to the firewall mount) than the W123s. Would bending of the pedals to the right be appropriate? Or would the driver just have to get used to the pedal offset?
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  #11  
Old 11-24-2014, 09:11 AM
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I have this feeling that I'm just going to have to get the pedals, and then see how it lines up, and what kind of rigging I have to do to make it work. Or find a 123 pedal set.

Thanks for the input, I'll let you guys know how it goes.
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1982 300TD 300,??? miles, daily driver turned donor
1982 300TD, 184,000 miles, daily driver
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  #12  
Old 11-24-2014, 10:30 AM
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ubertino:

Please check your PM folder; I sent you a message about W123 pedals.

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