|
|
|
#1
|
|||
|
|||
Flywheels
I have been slowly working on my 85' 300d turbo, converting it to a 4 speed as time and money allows. I have been reading about the differences between a 240d flywheel and a 300d flywheel. From what I have gathered the 300d flywheel just looks thicker, and has 10(?) more lbs to it.
I have a full machine shop in my garage, is there any reason why I can't just machine a 10lb ring and bolt it to the flywheel prior to balancing? This was just an idea I had in my head so it's not like I'm running out to go get material for this, it's more of a discussion about the topic. I understand I can just buy a flywheel, but these kinda projects are why I have a machine shop. Also the cost of the correct flywheel is more than I paid for all the other parts of the conversion combined, 240d flywheel included. My idea was to find someone with the 300d flywheel and get a correct weight, and size. What are your thoughts? I searched and couldn't find another thread on this topic. |
#2
|
||||
|
||||
You could add a ring. I'd use locating pins in addition to the bolts though to get an accurate placement.....or you could do a lap and do a shrink fit.
__________________
[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. |
#3
|
||||
|
||||
I just bought one for my swap. I imagine it should be here in a week or so. It was expensive :-( , about twice as much as I've got invested in the OM617. Let me know what other specs besides the weight you want off of it, and I'll be glad to provide them.
|
#4
|
||||
|
||||
I also have one left in my garage, be happy to measure that this weekend if you want.
__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." |
#5
|
|||
|
|||
I have the 240D flywheel, and I've been using it behind a 617 since 2010. I think of it as the "race spec" flywheel for a 300D. Less rotating mass means faster acceleration. There's a slight penalty in that you get some vibration at high engine load combined with low vehicle speed. Easy fix is you wait a little longer to shift. I don't generally use 4th below 45 mph unless it's downhill. I also don't use 3rd below 25-30 mph. The vibration issue is absent in 1st and 2nd.
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress. |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|