Is there a diff in M127 engines for a manual or auto gearbox

[BartSt]

Hi all,

Is there a difference in M127 engines for different type of gearboxes?

Curious,

Bart

[BartSt]

Further explanation:

Some engines have engine numbers like

127.981.10

and others

127.981.12

One is automatic and the other manual

A friend mentioned it could be related to the flywheel/crank shaft balance in a manual which is not in an automatic.

Your thought are much appreciated

Best,

Bart

[dirkbalter]

You are correct, auto versus manual.
You can read up on that in our tech manual.
Different flywheels that need to be balanced together with the crank.

[BartSt]

Dirk,
Good morning.
I do not know where to look in the tech manual.
Can you point me in the right direction?
Best,
Bart

[dirkbalter]

Hi Bart,
I was talking about:
https://www.sl113.org/wiki/DataCard/VIN
0-manual
2-auto

Hope that helps.

[BartSt]

Thanks.

But where can I find the facts about the balancing of the flywheel?

Bart

[dirkbalter]

Oh,
My understanding is that only the M127 engines were balanced together with the fly-wheels. I am sure it was discussed here before. We also have some experts (JA17, Benz Dr....) that may weigh in here with more detail.

[ja17]

The M127 engine is a "counter balanced engine". Each component is unbalanced, assembled and balanced as a assembly. Separate components must be kept with the original assembly or matched to parts they replace. In addition I think that the crankshaft on the automatic cars is completely different from the ones on the standard transmission cars. 

[Pawel66]

The drive shafts for manual and automatics have different part numbers.

[BartSt]

Thanks all,

How bad is it to connect a manual engine to an automatic gearbox

and

An automatic engine to a manual gearbox?

Bart