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  #31  
Old 04-28-2009, 06:24 PM
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SO, how much to fly one in from Germany?

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

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  #32  
Old 04-28-2009, 07:37 PM
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The FlY

Quote:
Originally Posted by rcounts View Post
So, lietuviai, diametricalbenz, and panZZer, how did you guys come up with the OM617 manual flywheel? Got relatives in Germany who hunted them down in the boneyards there for you or something?
I got my first one attached to a 309d Euro cab and chassis truck that had a 90 hp 616 in it -lucked into it crusin craigslist-diesel benz., I bought it to snag the 5 speed out of and then cannabalize--See winmutt's monarch moterome thread,im posting pics in an hr or two. Anyway I was pullin the tranz back from the motor and about pissed on myself---THE FRIGGIN 616 HAD A 617 FLYWLEEL AS WELL! So it is also a 616 TRUCK flywheel also-probably a gwagon also with the 616 but I dont know for sure. then a couple of months ago I spotted the gwagon guy in Germany posting that flywheel and put it off til i spotted lietuviei 's thread and went ahead and snagged another, The guy has another posted right now.

Last edited by panZZer; 04-28-2009 at 09:33 PM.
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  #33  
Old 04-28-2009, 07:44 PM
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balancing

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Originally Posted by t walgamuth View Post
I was gonna say 38#.

Don't forget you don't just balance it you must match it to the flywheel from your engine. There is a good chance neutral will work but there is also a 20 or 25% chance its balanced to the crank. If you have one of those and don't match balance it will shake your teeth out!

Good luck.

You'll probably need to have the driveshaft rebuilt longer. The 123 pedal cluster I am told will work with a little modification.

I would love an early sd with a stick myself.
I was going to ask you, you stated in some earlier thread that you have done five or so conversions and some 617a's were off balanced and most were neutral balanced. So what if I take the marked flexplate and the 37 lb stick fli to the right place and they tell me the flexplate has a definate heavy side and I tell them to find the corresponding heavy spot on the 37lb stick fli and they reply-It's neutral balanced, or I have the opposite occur? I DONT want anyone removing material from a 4-$700 flywheel to neutral balance, I have two of each so I got a second bite at the apple in that case.
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  #34  
Old 04-28-2009, 08:50 PM
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A comparison of the 617 and 616 flywheels. The 617 flywheel is on the left

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  #35  
Old 04-28-2009, 09:31 PM
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Car 616

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Originally Posted by lietuviai View Post
A comparison of the 617 and 616 flywheels. The 617 flywheel is on the left

In a car anyway, but not in some euro trucks, I cant post any pics until tommorrow.
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  #36  
Old 04-28-2009, 09:42 PM
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Yes the 616 flywheel is from a 240D.
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  #37  
Old 04-28-2009, 09:45 PM
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Quote:
Originally Posted by panZZer View Post
I was going to ask you, you stated in some earlier thread that you have done five or so conversions and some 617a's were off balanced and most were neutral balanced. So what if I take the marked flexplate and the 37 lb stick fli to the right place and they tell me the flexplate has a definate heavy side and I tell them to find the corresponding heavy spot on the 37lb stick fli and they reply-It's neutral balanced, or I have the opposite occur? I DONT want anyone removing material from a 4-$700 flywheel to neutral balance, I have two of each so I got a second bite at the apple in that case.
First step is to mark your flywheel before removing it so it can be put back in the same position. Then have it checked for balance. If its not neutrally balanced have your desired stick flywheel match balanced to it and install in the same position. If its neutral and the new one is too you are golden...just put it on in any position.

Don't worry about the balancing process, there'll be plenty of meat left when they are done.

OH, and if you're original flywheel is not neutral you put the new one on in the same position.
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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. It still needs upholstery redone...I also have a 427 Cobra replica with an aluminum chassis.
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  #38  
Old 04-28-2009, 11:29 PM
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I match balanced to my 240d flywheel to my auto trans flexplate and my engine does not vibrate at all, it is very smooth. the vibration I have is lugging under heavy load in 3rd gear. it is only at around 1700. if it was a flywheel mismatch balance issue it would get worse with RPM. that said, my flexplate was off by 20 grams, which is qty2 3/8 diameter x 3/8 deep holes drilled on the outer edge. when I put in my 300D flywheel and 5 speed, I will match the 300 flywheel to my flexplate again.
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  #39  
Old 04-28-2009, 11:59 PM
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Quote:
Originally Posted by lietuviai View Post
I'm not implying that this flywheel will eliminate the vibrations noticed by other members. I'm going to try to get things close as possible to neutral Even if everything is balanced the clutch assembly can still throw things off.
Possibly the ideal way to balance everything would be to balance the flywheel, clutch assembly and crank as one unit.
I would balance the FW and crank neutral, and then balance the clutch neutral as well. That way, the balance doesn't change if you change the clutch, or if it does, it's cause the clutch is not neutral.

BTW. Would the CS & FW be balanced w/ the harmonic balancer in the assy as well?
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  #40  
Old 04-29-2009, 05:57 AM
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You only need to match the flywheel that was on the engine to the new one. Clutch components will always be neutral. Balancing all those components will be throwing your money away.
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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. It still needs upholstery redone...I also have a 427 Cobra replica with an aluminum chassis.
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  #41  
Old 04-29-2009, 08:59 AM
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Quote:
Originally Posted by t walgamuth View Post
You only need to match the flywheel that was on the engine to the new one. Clutch components will always be neutral. Balancing all those components will be throwing your money away.
They "should" be neutral anyway.
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  #42  
Old 04-29-2009, 05:08 PM
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clutch

Im planning on using a 240d clutch from ebay, I cant justify shipping a gwagon one from Germany. Something else interesting, I didnt think a 9" diameter clutch would be appropriate for a big truck like the 309d that was used for a small car transporter-or whatever that might be going down steep grades sometimes, mine had two discs in the clutch--I dont know enough about clutches to lnow if thats like doubling the clutch surface size.
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  #43  
Old 04-29-2009, 07:49 PM
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it is. It is commonly used for high performance or truck motors, twice the holding power and not too hard to push in.
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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. It still needs upholstery redone...I also have a 427 Cobra replica with an aluminum chassis.
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  #44  
Old 04-29-2009, 07:50 PM
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Quote:
Originally Posted by Bajaman View Post
They "should" be neutral anyway.
Have you ever seen one that required balancing?

I have not.
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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. It still needs upholstery redone...I also have a 427 Cobra replica with an aluminum chassis.
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  #45  
Old 04-29-2009, 08:48 PM
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Quote:
Originally Posted by panZZer View Post
Im planning on using a 240d clutch from ebay, I cant justify shipping a gwagon one from Germany. Something else interesting, I didnt think a 9" diameter clutch would be appropriate for a big truck like the 309d that was used for a small car transporter-or whatever that might be going down steep grades sometimes, mine had two discs in the clutch--I dont know enough about clutches to lnow if thats like doubling the clutch surface size.
Cool, ill scuff them wit 180 and reuse them!
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