Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-25-2011, 12:57 PM
Aquaticedge's Avatar
Bump on a log
 
Join Date: Nov 2009
Location: See Biography
Posts: 3,148
CV axles.

I have a question on them. Can they be cut down and welded together to make them shorter?

(maybe this should go in Open Discussion. I dunno)

__________________
hum.....
1987 300TD 311,000M Stolen. Presumed destroyed
Reply With Quote
  #2  
Old 05-25-2011, 02:29 PM
Registered User
 
Join Date: Aug 2007
Location: San Jose, CA
Posts: 35
stub axles....

You could do it but aware that if they aren't put back together totally strait and somewhat balanced you risk messing up everything in your rear end (pinion gears, all carrier mount points, etc.,). Even if each axle is just a 'little off' you probable wouldn't notice the destruction of your rear end right away. I'm voting NO to the idea.
Your mileage may differ..... .
Cheers!
Chris
Reply With Quote
  #3  
Old 05-25-2011, 02:31 PM
Stretch's Avatar
...like a shield of steel
 
Join Date: Sep 2009
Location: Somewhere in the Netherlands
Posts: 14,461
If you're still posting then I guess you're not banned then... joke custom user title?

I did think you were likely to be one of the last people here to be banned.

As for the axles I guess they are forged. They seemed that way to me anyway if I remember correctly. I guess a weld would probably not be strong enough - or you'd need some chap who welds gas pipes for a living to do it for you.
__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!
Reply With Quote
  #4  
Old 05-25-2011, 02:45 PM
Renntag's Avatar
User Especial
 
Join Date: Jul 2008
Location: Kona, Hi
Posts: 1,396
Anything is possible given the right methods and procedures, but the axles would be out of balance and unless put in a jig, not straight either.

Are you trying to save a few dollars? What is the missing story here?

If this is for something that wont be driven ever, then SURE.
__________________
83 300TD (need rear wiper assembly dead or alive)
84 300SD Daily driver
85 300TD almost 400k miles and driven daily.
98 E300D *sold
86 300SDL *sold and made flawless 10 hour journey to new home.
Reply With Quote
  #5  
Old 05-25-2011, 08:47 PM
Aquaticedge's Avatar
Bump on a log
 
Join Date: Nov 2009
Location: See Biography
Posts: 3,148
Ok, Speeds will only be 4-5M/h less then a mile so it's doubtful anything oddball would happen. The story is. I diddnt get to build my mercedes Train. So I'm building (eventually) a Mercedes Railbus using bits and pieces from mercedes to make it go. Delibas coming out this way made it important to have somethign small for individual rides or small groups not to drag an entire train out.
__________________
hum.....
1987 300TD 311,000M Stolen. Presumed destroyed
Reply With Quote
  #6  
Old 05-25-2011, 08:56 PM
Registered User
 
Join Date: Apr 2011
Location: Dunlap IL
Posts: 166
You didn't explain why you wanted to do this? If they are the correct axels for your car they will not need to be cut.

That said - if you need room for the flux capaciter - maybe find a piece of steel that has an inside diameter similar to the outside diameter of the shaft and sleve it. This will hold it streight.
Reply With Quote
  #7  
Old 05-25-2011, 09:12 PM
Aquaticedge's Avatar
Bump on a log
 
Join Date: Nov 2009
Location: See Biography
Posts: 3,148
See the last post I made. I explained WHY I wanted to do this....
__________________
hum.....
1987 300TD 311,000M Stolen. Presumed destroyed
Reply With Quote
  #8  
Old 05-25-2011, 10:52 PM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 50,968
Quote:
Originally Posted by Aquaticedge View Post
See the last post I made. I explained WHY I wanted to do this....
One way to do what you want is to make a thick Tube with a slight press fit (or a press fit if you can figure out how to install the Tubes that way) on the Cut Axle Shafts. The Tube should be about 4-6 inches so there is enough support area so that everthing gets lined up properly.

You slide each end of the Shaft so that they met at the Mid Point inside of the Tube. After That you weld around the Tube ends to Weld the Tube to the Axle.

ARC Welding might not be the best method to weld it.
__________________
84 300D, 82 Volvo 244Gl Diesel
Reply With Quote
  #9  
Old 05-25-2011, 11:09 PM
JB3 JB3 is offline
Registered User
 
Join Date: Jan 2010
Location: RI
Posts: 7,246
I cut and welded a trans input shaft, worked decently all said and done. People do this stuff all the time for farm machinery and such, Im sure it will work out well.

You can also just disassemble and cut the axle, put the pieces in a lath, flatten the ends, drill and tap a hole down the center, champher then ends and thread them back together with a piece of threaded rod, then weld it up. Then it should be perfectly straight and even without too much difficulty. Would not be as strong as diesel's method, but both ways would probably work

If you did that, I doubt you would have to bother with balancing, especially at that speed of rotation
__________________
This post brought to you by Carl's Jr.
Reply With Quote
  #10  
Old 05-26-2011, 12:00 AM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,832
I think the large end pops off with a lot of force, you could pop it off, take it to a spline shop and have them cut and respline it, but for just a train at 5mph... balancing is not going to be an issue. the thing I'm worried about is I think it's cast iron... at least it's high nickle content STRONG stuff. not sure if it can be welded or not.
I don't think it's forged... I think it's cast, and lathe turned to size. there is a weld of some sort where the boots rest, and another in the center... woldn't hurt to ask a welder their opinion.
I'm a gas pipe welder, and I'd not tackle it. all ya gots to worry about with gas pipe is leaks!
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #11  
Old 05-26-2011, 04:07 AM
Stretch's Avatar
...like a shield of steel
 
Join Date: Sep 2009
Location: Somewhere in the Netherlands
Posts: 14,461
I should have guessed this was a train related question.

You might find that process automation components - the sort of things used in factories - will suit your needs. I've seen length adjustable shafts (on splines) with universal joints at both ends before...

There must be many more people who do this sort of stuff but here's one hit I got from google:-

http://www.beldenuniversaljoints.com/?gclid=CJinvfOThakCFUOFDgodTnfHkQ
__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!
Reply With Quote
  #12  
Old 05-26-2011, 06:50 AM
Aquaticedge's Avatar
Bump on a log
 
Join Date: Nov 2009
Location: See Biography
Posts: 3,148
Quote:
Originally Posted by vstech View Post
I think the large end pops off with a lot of force, you could pop it off, take it to a spline shop and have them cut and respline it, but for just a train at 5mph... balancing is not going to be an issue. the thing I'm worried about is I think it's cast iron... at least it's high nickle content STRONG stuff. not sure if it can be welded or not.
I don't think it's forged... I think it's cast, and lathe turned to size. there is a weld of some sort where the boots rest, and another in the center... woldn't hurt to ask a welder their opinion.
I'm a gas pipe welder, and I'd not tackle it. all ya gots to worry about with gas pipe is leaks!
Thats a good Idea, I'll check into it

@Army, I'll look into that too. as for the train thing.... I'm using mercedes parts....so why not ask mercedes experts? I think an amusing Joke would be to put the whole thing (completed project) Taking it down to my indy and tell him to go over it. he wont but It'd be amusing.
__________________
hum.....
1987 300TD 311,000M Stolen. Presumed destroyed
Reply With Quote
  #13  
Old 05-26-2011, 12:01 PM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 50,968
Quote:
Originally Posted by vstech View Post
I think the large end pops off with a lot of force, you could pop it off, take it to a spline shop and have them cut and respline it, but for just a train at 5mph... balancing is not going to be an issue. the thing I'm worried about is I think it's cast iron... at least it's high nickle content STRONG stuff. not sure if it can be welded or not.
I don't think it's forged... I think it's cast, and lathe turned to size. there is a weld of some sort where the boots rest, and another in the center... woldn't hurt to ask a welder their opinion.
I'm a gas pipe welder, and I'd not tackle it. all ya gots to worry about with gas pipe is leaks!

Not saying this to be argumentive but I doubt if it is Cast Iron. It is too thin and Cast Iron tends to be brittle. Not the type of thing that is ideal for twidting and flexing loads.

When you see an Axle like might be on a Truck that appears to have been Cast the Hub Flange is part of the Casting and the Shaft between the Bearing and Spined area is Tapered.

There is such a thing as Cast Steel that does not have the disadvantages of Cast Iron but looking at the Axle it just appears that they used and Machined some sort of Steel Bar.

__________________
84 300D, 82 Volvo 244Gl Diesel
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 03:55 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page