1974 280 flywheel automatic trans problem - Mercedes-Benz Forum

 
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post #1 of 2 (permalink) Old 02-03-2011, 12:01 AM Thread Starter
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1974 280 flywheel automatic trans problem

I have a 1974 280 with a M110 engine and automatic trans.(93,000 miles and I paid $100 for the car and it ran good for a year)
The starter will not engage as the teeth are chewed on the flywheel.
None of the parts dealers in my area have a replacement in there parts cataloges.(there is no Mercedes dealers with in 100 miles)

I may be forced to try junkyards.
questions

(1) Will any "automatic transmission" flywheels from a M110 engine work, 1973 to 1986

(2) If i turned the flywheel 180 degrees on the crank what would happen would it damage something.

(3) Anyone know the part number. All i can see through the front port of the bell housing is the number "110 02" (I don't want pull the trans till i have a replacement as it takes up garage space that i need to fix my free 1988 ford ranger)
Many of the parts places don't even understand that there is a flywheel on Mercedes with automatic transmissions and try to sell me a flex plate.

(4) Is this a unobtainium part. I have look all over the internet for one. but without the part number have not found one.
Have found a number of people that claim there is no flywheel on automatic transmission M100 engines!!!!!!,
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post #2 of 2 (permalink) Old 02-03-2011, 02:10 AM
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The flywheel is balanced together with the crankshaft and the balancer. So any M110 automatic flywheel will fit, but it will not be in balance. That will lead to bearings failure. What you can do is transfer the balance of the old flywheel to the new flywheel, a machine shop/engine overhaul company can do that for you.

Turning it 180 degrees also creates balance problems.

The part number of the flywheel is A1100300205 from engine 921 018111. Earlier engines had A1100300105. Those numbers can be found in the EPC via the internet, that is free of charge for US citizens: http://epc.startekinfo.com/epc/

The ring gear alone has part number A1800320605

I just had a look, both flywheel and ring gear are still available new from your faraway MB dealer.

Last edited by Govert70227; 02-03-2011 at 02:14 AM.
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