• This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn more.

OM606 and 240mm Flywheel

Alan

G-Wagen Club SA
Joined
Oct 12, 2008
Messages
3,743
Likes
250
Age
57
Location
Pretoria
#1
So on the weekend I had a little time to do something and opted to remove the ring gear plate off the OM606 and fit the 240mm Dual mass flywheel I got.
All went well until I discovered that the flywheel does not "seat" nicely.
The protrusion from the crankshaft is longer than the recess on the flywheel.
I can fit the washer from the original torque converter but that would also shift the ring gear further away from the started sprocket.
Anyone come across this?
 

Attachments

Joined
Mar 14, 2013
Messages
34
Likes
0
Location
southern united kingdom
#2
hi alan , this is easily solved and a well known ( i hope) problem that a lot of conversion people miss and just bolt it up unaware of the nasty unseen situation they have missed .
you need to evenly grind down the end of the crank until you can measure the end of the crank being less than the relief in the flywheel (use a vernier depth gauge) put a little coloured grease or paint on the end of the crank and bolt it all up and make sure there is no mark deposited , take your time do not remove too much / measure at various points around the circumference to make sure it is even.
 

Pete460332

Staff member
G-Wagen Club SA
Joined
Oct 8, 2008
Messages
2,903
Likes
129
Location
Cape Town
#3
So will you grind it off with a dremel? - Or take the whole crank out and have it machined off? I suppose its part of the fallout that the OM606 turbo's never had a manual box fitted
 

Alan

G-Wagen Club SA
Joined
Oct 12, 2008
Messages
3,743
Likes
250
Age
57
Location
Pretoria
#4
Thanks Mike,
Not sure why I didn't find any results about this when googling. I also posted on STD and they even posted a link.
I think I will rather go with machining the flywheel to accommodate the crank.
 
Joined
Mar 14, 2013
Messages
34
Likes
0
Location
southern united kingdom
#5
alan , i am a member on std and i think alot of people do not notice the problem and do not realise the issue.
i grind the end of the crank down with a 4 inch sanding type flap disc and measure it until there is a clearance SANY1138.jpg bit of a blurry image but hopefully you can see what has been done .
 

Alan

G-Wagen Club SA
Joined
Oct 12, 2008
Messages
3,743
Likes
250
Age
57
Location
Pretoria
#6
Thanks Axle. I understand and can also see what you did.
I just think I'd rather modify the flywheel. I still have time. I probably would have sanded the crank if I was actually busy trying to get the whole thing going.:-D
That time is getting closer though and will definitely happen this year.
 
Joined
Apr 15, 2013
Messages
60
Likes
11
Location
Cape Town
#7
Hi Alan,

I am pretty much at the same stage of conversion...getting all together and prepped for transplant during this year. I have been doing research on the dual mass flywheel and gearbox setup, as this is where I am at the moment.
Which flywheel have you used and where did you source it from?

I am planning on a 716.654 manual 6 Spd, but they are scarce at the moment!

Thanks
 

Alan

G-Wagen Club SA
Joined
Oct 12, 2008
Messages
3,743
Likes
250
Age
57
Location
Pretoria
#8
Hi Anton,
I have the 716.654 and asked for a 240mm flywheel to fit.
They brought a couple to me and I selected the best one. Unfortunately I don't know what its off, but it really doesn't matter as long as it's 240mm and fits. I don't think I need the tabs all around as my tacho (I think and hope) uses the ring gear for pulses. Might even machine them off.
Mike aka Axel606 has also done a few conversions already and is probably the most knowledgeable.
You have a 460 which has ad and disadvantages over my 463 conversion.
 

Alan

G-Wagen Club SA
Joined
Oct 12, 2008
Messages
3,743
Likes
250
Age
57
Location
Pretoria
#9
Hi Guys, Just to add to this topic.
There is a small needle pilot bearing pressed into the flywheel. If that bearing is damaged as was the case with mine, you cannot buy a replacement from MB.
They try to sell you a whole new flywheel at 11k a pop.
I googled and found Ford and VW also use the same pilot bearing. However I could not source them locally.
I eventually sourced them from Germany and bought 3.
If anyone needs one we can talk.
 

karoogw

G-Wagen Club SA
Joined
Oct 23, 2008
Messages
260
Likes
9
Age
50
Location
Hofmeyr
#10
Alan thank's for your time. but in PE there is a company named Bearing Man, and they could get me a bearing for an old Easy Washing machine that all other suppliers told me is not available. Just a through.
 

Alan

G-Wagen Club SA
Joined
Oct 12, 2008
Messages
3,743
Likes
250
Age
57
Location
Pretoria
#11
I actually tried a Bearing Man in Pretoria where I sourced some bearings for my Transfer box where no one could help. They actually tried to source it for me and said agents only.