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  #1  
Old 02-26-2012, 12:40 AM
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617 flywheel specs

So here's the deal. We swapped out the flairing auto for a 4 speed manual, cuz' it's a racecar and who wants a damn auto anyway? Then we tried to drive it and the clutch pedal fell to the floor (that was fun). Fixed that (mostly) with new master and slave cylinders. Then we take it out for a test drive and now the clutch is slipping. . . . So we're going to drop the transmission and check the flywheel for wear. Are there any specs out there? With the 617 engine is the flywheel stepped (we just want to know before we drop it)? If it is, what are the wear specs? We are on a tight timeline . . . like needs to be fixed and ready to run by Saturday
thanks! *

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Old 02-26-2012, 12:43 AM
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Here is what I have:
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617 flywheel specs-mb-specs-manual-flywheels.jpg  
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  #3  
Old 02-26-2012, 07:41 AM
t walgamuth's Avatar
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Join Date: Apr 2005
Location: Lafayette Indiana
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The benz flywheels are not known for wear but if you happened to have a very worn one eventually the clutch would slip, I guess, though I believe that would more likely be from milling it too much instead of wear.

When you mill the flywheel you need to shim between the fw and block an equal amount or your release point on the clutch will get nearer to the floor.....a pain.

(don't ask how I know).
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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Old 02-26-2012, 11:45 AM
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Check to be sure you have the correct throw out bearing. The "shoulders" are a slightly different height.
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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"
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  #5  
Old 02-26-2012, 05:39 PM
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Throw out bearing

Any more details about the throw out bearing? I saw there are two different TO bearings so I got one of each just in case. Is there a way to tell which one is the correct one? I was assuming I would replace it with the one that looked similar but now I'm wondering.
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Old 02-26-2012, 06:21 PM
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The throw out bearing for the later, one piece tranny has the shorter shoulder and the other is for the iron, two piece, earlier tranny which uses the bearing with the taller shoulder. Take a close look at both on the parts page.

I pulled a tranny twice (3 times including the initial repair) before I figured out there were two choices and I made the wrong one.

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"

Last edited by Stevo; 02-26-2012 at 06:47 PM.
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