So it begins... US 840Ci 6 speed swap

[spikec]

Thanks Dan, had some Noico in the lab for an old audio project, never thought to use it for this!

Btw Olin, did you use a M10x160mm bolt to connect both pedals to the pedal bracket? I ordered the 90mm bolt that was in your parts list, but there doesn't seem to be any other way to mount the pedals side-by-side without a long 160mm bolt going through both sets of bushings.

[olinjohnston]

Btw Olin, did you use a M10x160mm bolt to connect both pedals to the pedal bracket? I ordered the 90mm bolt that was in your parts list, but there doesn't seem to be any other way to mount the pedals side-by-side without a long 160mm bolt going through both sets of bushings.

The long bolt and clutch pedal just came out of a manual E34 I found in the junkyard.

[spikec]

Gotya, thanks...on order ;-) I wonder why the realoem for the euro 840 shows the clutch pedal attached with the m10x90.

[spikec]

Got the pedals back in, clutch bled and tested. This thing works! Not bad for an old airline pilot guy
I tested it while still up on jack stands, without the exhaust. This thing sounds like a top fuel dragster when revved. Still have to get it all patched back together and do a road test, but I want to thank Olin and Terminator for making this doable!


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[spikec]

Just wondering if you had any issues with getting the stick into reverse. I can feel all the gates in the gearbox 1-6, but it doesn't seem to want to get into reverse. I googled it and apparently you really have to force the stick left to compress the reverse spring. Just wondering about your experience with this. I'd hate to find out my Getrag 420 is bad, but they seem to be pretty bullet proof so I'm wondering if I'm missing something here.

[olinjohnston]

Just wondering if you had any issues with getting the stick into reverse. I can feel all the gates in the gearbox 1-6, but it doesn't seem to want to get into reverse. I googled it and apparently you really have to force the stick left to compress the reverse spring. Just wondering about your experience with this. I'd hate to find out my Getrag 420 is bad, but they seem to be pretty bullet proof so I'm wondering if I'm missing something here.

I bet you're just not pushing it to the left hard enough.

[spikec]

I think it's an adjustment isue. The stick doesn't seem to be able to physically go over to the left far enough. I've fiddled with the selector rod to no avail. The BMW service manual says to put in in reverse, then use a template to line up the stick. I can't seem to manually put the thing into reverse to begin with.

[olinjohnston]

Are you using the 840-specific linkage? If so, are you sure it isn't in upside-down or something?

[spikec]

Woo-hoo!!! Finally got it. I'm using all 840 stock parts. The selector rod for some reason didn't want to cooperate but I went back underneath and finally got the damn thing positioned properly. As I suspected, it was an adjustment issue. There's no real guidance on this anywhere, so like an infinite number of monkeys in front of an infinite number of typewriters, I now have reverse. Finally I can get the exhaust back on and get it road tested

[rjbaren]

I am anxious to hear how it drives.

[spikec]

Road test - AOK! Runs really smooth through all gears, a lot of fun to drive. Still have to bring it to the shop to get the catback exhaust put on. Well worth the time and effort, as I'm sure others would agree!

[Wuffer]

For others..... http://www.ebay.com/itm/291905121444...%3AMEBIDX%3AIT

[olinjohnston]

For others..... http://www.ebay.com/itm/291905121444...%3AMEBIDX%3AIT

Looks like E39 parts. The only thing from this that will work in an E31 is the transmission and clutch assembly. Those pedals, drive shaft, linkages, and clutch hydraulics will not fit the 8.

[Chamberlin]

Yea I contacted the guy asking where the 8 series shifter linkage and interior bits were and he apologized, quickly updating the (Panjo) ad in the process.

[Msacop]

Looks like E39 parts. The only thing from this that will work in an E31 is the transmission and clutch assembly. Those pedals, drive shaft, linkages, and clutch hydraulics will not fit the 8.

Hi Olin,

I have a bmw 840 M60 engine, I'm thinking to installa manual transmission S6S from 98 540, my question is wich will be the complications to install that transmission in a M60 engine, I have the mayority parts that you posted.

[rjbaren]

http://www.8er.org/forum/showthread.php?13164-From-automatic-to-manuel-conversion-840&referrerid=5465
Check out this thread from 8.er.org. Svein/Terminator did his conversion with an M60. There are a lot of photos with this conversion too. I believe you will have to join to open the thread.

[olinjohnston]

Hi Olin,

I have a bmw 840 M60 engine, I'm thinking to installa manual transmission S6S from 98 540, my question is wich will be the complications to install that transmission in a M60 engine, I have the mayority parts that you posted.

There were no complications. Between this thread and the one on 8er.org mentioned, you will have all the information you need.

[petejk]

Shifter:
Shift lever 25117527246
Shifting arm 25111222366
Bearing (shift lever) 25111220600
Selector rod 25111222367
Plastic washers (4) 25111220439
Securing clip (4) 25117571899
Gearshift rod joint 25117526415
Dowel pin 23411466134
Tension bush 25111203682
Plastic washer 25111434194
Shift arm bearing 25111222652
Rubber boot 25111434181
Bolt 25111222375
Bush bearing oval (2) 25117507695
Leather boot walk-nappa 25111221823

Olin,

I am getting some parts together to prepare for an eventual swap of my 560g to a 420g.
1st to 2nd is notchy, and I'm sure that it won't last forever.

Looking through the 840 specific shifter parts, the shifting arm is still available, and the shift lever, but the shift rod, 25111222367 seems to be NLA.

Do you happen to have the dimensions? I think with the length, and the offset, as it's angled at either end, I could have one fabricated when the time comes.

[spikec]

Schmeidmann to the rescue:

https://www.schmiedmann.com/en/catn-ol?q=25111222367

[petejk]

Schmeidmann to the rescue:

https://www.schmiedmann.com/en/catn-ol?q=25111222367

Thanks, I should have known to check Schmiedmann. Still a hell of a lot of money for a bent rod...

[Goodguyili]

I'm gunning for the 6 speed swap. I bought myself a getrag 420g and pedal assembly from an e39 540i as well as a shifter arm specific for the 840. What other "essentials" should I look out for? I'm trying to collect all the components bit by bit. Also. How does one get a manual driveshaft? Do I have to take mine into a shop; do I have to buy another and have them both combined, or do I have one completely custom made? I know it's going to be impossible to find an oem one

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[olinjohnston]

I'm gunning for the 6 speed swap. I bought myself a getrag 420g and pedal assembly from an e39 540i as well as a shifter arm specific for the 840. What other "essentials" should I look out for? I'm trying to collect all the components bit by bit. Also. How does one get a manual driveshaft? Do I have to take mine into a shop; do I have to buy another and have them both combined, or do I have one completely custom made? I know it's going to be impossible to find an oem one

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E39 pedals won't do anything for you. You need the clutch and brake pedal from any manual E31, E32, or E34 - doesn't matter what engine. On one of the earlier pages of this thread I supplied a parts list with part numbers that includes everything you must gather before attempting the swap. Even the exhaust brackets are different if you want to do it right. As for the driveshaft, I ordered the 840-specific manual one, but I was working for BMW at the time, so it was priced reasonably. Most people just have their auto one lengthened/balanced.

[Goodguyili]

Thanks Olin! I've returned the e39 pedal and I'm gonna go hunt for an e34 clutch pedal at a junk yard. Any other parts shared with the e34 I could scavenge? Master and slave cylinders too? I'm probably going to grab all the hardware I take off of it as well to use.

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[IJustDrive]

Where did you find the trans? At a yard? Did you have to remove it yourself?

[Goodguyili]

Where did you find the trans? At a yard? Did you have to remove it yourself?

I was tired of looking for one at a junkyard, I just found one on ebay for sale that dropped a significant value and snagged it when I got the notification for its price drop.

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