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-   -   Fitting a merc 6-speed Manual box to a W124 E300????? (http://www.peachparts.com/shopforum/showthread.php?t=232438)

c280nz 05-19-2009 02:05 AM

good to see it fits nicely
the clutch slave cylinder is on the opposite side to the 5 speed model.
keep us informed as to the clutch/flywheel build

JayRash 05-19-2009 04:06 AM

if this works out ill really consider one for my 36 AMG

c280nz 05-19-2009 06:25 AM

why wont it work jayrash?
your car will be a bit different tho with the standard computer,
you would probebly need to trick the standard computer tho for some of the transmission signals.

KarTek 05-19-2009 08:48 AM

This is a very cool project. One day I'd like to have a 6sp in my E300. Something that occured to me that would be extremely helpful is a compatibility chart for transmissions and engines.

Just something listing all engines with the same bolt patterns and the compatible transmissions.

JayRash 05-19-2009 11:21 AM

Quote:

Originally Posted by c280nz (Post 2203699)
why wont it work jayrash?
your car will be a bit different tho with the standard computer,
you would probebly need to trick the standard computer tho for some of the transmission signals.


i know, and fooling the ecu is the easy stuff, all my car has is an overload switch for shifting from first to second on full throt.

jdhill 05-25-2009 01:56 PM

Quote:

Originally Posted by KarTek (Post 2203757)
This is a very cool project. One day I'd like to have a 6sp in my E300. Something that occured to me that would be extremely helpful is a compatibility chart for transmissions and engines.

Just something listing all engines with the same bolt patterns and the compatible transmissions.

Try Hollander Parts Interchange Manuals, www.hollanderinterchange.net.
Also if you subscribe to startek info you can put a part # in search and it will list all vehicles the # applies to.

ke6dcj 05-30-2009 12:52 PM

Crossing my fingers for you. I have a C36 powered W124 wagon waiting . . .

:-) neil

aussiedroptop 06-15-2009 11:51 PM

6 speed transmissions
 
have you ever thought about the Borg Warner/Tremec T56 6 speed gearbox. Check out en.wikipedia.org/wiki/Borg-Warner_T-56
this site has all the different ratios etc. this tranny is super tuff and is used behind 600hp factory vipers etc

matsalleh76 07-04-2009 08:15 AM

B'mus,

Whats the status of your 6 speed conversion? Also what is the P/N of the gearbox.

Thanks & Regards,
bobf.

bahaimus 07-06-2009 07:59 AM

Quote:

Originally Posted by matsalleh76 (Post 2239410)
B'mus,

Whats the status of your 6 speed conversion? Also what is the P/N of the gearbox.

Thanks & Regards,
bobf.

No further progress to report I'm afraid. I don't expect to have the car back on the road this year unless I suddenly find myself flush with funds. I'll be sure to post progress as it is made though.

The model number is 716.620. I don't know of a single part number though.

nick.ged 09-11-2009 01:17 PM

any news on the 6 speed? ive already converted my 103 12v 3.2 amg twin turbo to dog leg five speed, but six would be coooooool.

was wondering wether the two manual boxes (dog five and 6) are the same length?

bahaimus 09-15-2009 08:22 PM

Quote:

Originally Posted by nick.ged (Post 2291568)
any news on the 6 speed? ive already converted my 103 12v 3.2 amg twin turbo to dog leg five speed, but six would be coooooool.

was wondering wether the two manual boxes (dog five and 6) are the same length?

I've been talking to a couple of clutch places about getting a custom flywheel made, but haven't been able to progress that yet. I am waiting on the purchase of a right hand drive clutch pedal assembly so I can hook up the hydraulics and take some measurements of the throwout bearing movement before I can choose my clutch and get the flywheel made.

Can you take some basic measurements of your dogleg gearbox and post up? I'll get some of the six speed and post up for all to share.

I'm also mucking around looking to adapt a BMW shifter to replace the complicated Benz unit. I need to get some more parts for this and get my lathe up and running to make some bushes!

nick.ged 09-16-2009 05:32 PM

i just used a standard 300 12v flywheel and machined it to fit a sachs rcs twin paddle clutch, cant measure gear box without taking it off car!

Pagz 09-16-2009 07:37 PM

Hey,
The 6 speed looks to have the gear shifter mounted onto the top of the transmission,unlike the 5-speeds drag link config.

How well does this alighn with your current setup?

Cheers,
Paul

bahaimus 09-16-2009 08:13 PM

Quote:

Originally Posted by Pagz (Post 2295416)
Hey,
The 6 speed looks to have the gear shifter mounted onto the top of the transmission,unlike the 5-speeds drag link config.

How well does this alighn with your current setup?

Cheers,
Paul

Correct. The factory 6sp shifter is very different to the 5sp. I am transplanting into an auto car, so I can't compare. Some better pictures:
http://i302.photobucket.com/albums/n...s/IMG_2609.jpg
http://i302.photobucket.com/albums/n...s/IMG_2610.jpg

A couple of issues are obvious. The whole shifter mechanism is too long. Will put the shifter out of the tunnel at about the handbrake position. I also think it will be too tall. I think the mechanism is obvioulsy designed to minimise vibration and rocking being transferred to the shift lever. But a sa consequence, seems to introduce a very sloppy feel.

Thankfully, I've played with BM's in the past and the shift rod input to the gearbox housing looks very similar to that on the BM Getrag boxes. Sooooo, I'm going to try and adapt a BMW shifter mechanism like this:
http://i302.photobucket.com/albums/n...electorrod.jpg
http://i302.photobucket.com/albums/n...s/selector.jpg

Fingers crossed.....

Here are some pictures inside the bellhousing. The clutch slave and throwout mechanism is very different to the 5sp.
http://i302.photobucket.com/albums/n...s/IMG_2611.jpg
http://i302.photobucket.com/albums/n...s/IMG_2612.jpg


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