OM606 Crank bolt pattern - PeachParts Mercedes-Benz Forum

97 SL320 · #1 05-21-2018, 09:43 AM

Given the C36 uses a 606 crank in a M104 it should be the same as a stock M104. The M104 has 8 bolts with a 75 mm circle and even spacing. I think the dowel pin is at 70 mm circle. The pilot is 46 mm. A Mercedes bell housing limits ring gear diameter to about 12" and clutch to 9.5" ish.

Someone on the performance side of things used a 8 bolt Ford Modular OHC V8 flywheel on a V8 MB but I don't know what the pattern is.

Have a look at this MB engine to Chevy adapt. http://www.transmissionadapters.com/Mercedes%20diesel.ht

Frank Reiner · #2 05-21-2018, 05:58 PM

Quote:

Originally Posted by 97 SL320

Given the C36 uses a 606 crank in a M104 it should be the same as a stock M104. The M104 has 8 bolts with a 75 mm circle and even spacing. I think the dowel pin is at 70 mm circle. The pilot is 46 mm. A Mercedes bell housing limits ring gear diameter to about 12" and clutch to 9.5" ish.

Someone on the performance side of things used a 8 bolt Ford Modular OHC V8 flywheel on a V8 MB but I don't know what the pattern is.

Have a look at this MB engine to Chevy adapt. http://www.transmissionadapters.com/Mercedes%20diesel.ht

Just for reference, the M116/117/119 crankshaft bolt pattern is:
7 @ R.=40mm (80mm BC)
1 @ R.=38mm (76mm BC)
Flywheel-to-crank hub diameter = 55mm

The M120 appears to share this pattern, but not verified.

antonmies · #3 12-16-2018, 04:31 PM

Quote:

Originally Posted by Frank Reiner

Just for reference, the M116/117/119 crankshaft bolt pattern is:
7 @ R.=40mm (80mm BC)
1 @ R.=38mm (76mm BC)
Flywheel-to-crank hub diameter = 55mm

The M120 appears to share this pattern, but not verified.

It's the same.

Does anyone know about the flex plate/ring gear diameter used in M116/117/119? I'm looking for a 60-2 flex plate for M120 / custom project and it has ~320mm (tape measure) diameter and 148 teeth.