Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: BartSt on October 01, 2021, 08:24:00

Title: Is there a diff in M127 engines for a manual or auto gearbox
Post by: BartSt on October 01, 2021, 08:24:00

Hi all,

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

Curious,

Bart

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: BartSt on October 01, 2021, 16:48:15

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

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: dirkbalter on October 01, 2021, 19:09:27

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.

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: BartSt on October 02, 2021, 05:46:04

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

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: dirkbalter on October 02, 2021, 16:59:06

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

Hope that helps.

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: BartSt on October 02, 2021, 17:18:31

Thanks.

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

Bart

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: dirkbalter on October 02, 2021, 17:55:13

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.

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: ja17 on October 04, 2021, 06:08:14

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. 

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: Pawel66 on October 04, 2021, 06:09:57

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

Title: Re: Is there a diff in M127 engines for a manual or auto gearbox
Post by: BartSt on October 04, 2021, 12:50:29

Thanks all,

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

and

An automatic engine to a manual gearbox?

Bart