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  #1  
Old 12-17-2011, 06:44 PM
1978 300D, Georga car
 
Join Date: Dec 2010
Posts: 208
78 300d bent steel rims

Two of my steel rims are bent slightly. I found out after rotating my tires. The rear ones must have seen some bad parking or something. I get some shaking at the steering wheel and when going slow around corners, I can feel the wheels going back and forth. I swapped my spare for one of them and it helped. Some q's:
Is straightening a possibility anywhere?
There is a 70's 280s in the local tow yard. I was thinking about asking to do a swap on rims. Are they the same?
Can I buy new rims anywhere? I want to keep the steel with the hubcaps.
Does anyone in SE CT have any?
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  #2  
Old 12-17-2011, 06:50 PM
ROLLGUY's Avatar
ROLLGUY
 
Join Date: Oct 2007
Posts: 5,314
I have a set of aluminum hub cap wheels for sale. These are much lighter, and were installed on 240D's (and some 300D's). Most everyone here would agree that these are the wheels you need, not the steel ones.
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  #3  
Old 12-17-2011, 07:48 PM
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Join Date: May 2007
Location: Out in the Boonies of Hot, Dry, Dusty, Windy Nevada
Posts: 9,585
The aluminum or "Light Alloys" as mentioned in the FSM, come in 2 widths.

The 240D used a 5 1/2 inch , and the 300D used a 6 inch.
There is a broken silver stripe with the 5 1/2 inch and a solid silver stripe with the 6 inch. the stripe is in the enter of the wheels. another way of identification, there is a solid row of quarter size holes around the circumference of the wheel.
The steel rims have 4 slots where the inner and outer part are welded together.
or use a magnet.

the 240 light alloy weight 9.70 lbs, and the steel wheel weighs 18.75 lbs.

The hub cap clips for the light alloy have a plastic piece on the clip to keep it from digging into the aluminum.

In my owners manual is states,
Hint: Do not use hub caps designed for light alloy disc rims on steel rims.

Don`t know what this means, except maybe the clips are different. I have noticed since I went from steel wheels to light alloy, the hub caps do not fit as flush as before. the clips are expensive, $5.75 ea, and 4 per wheel.

Charlie
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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

http://i30.photobucket.com/albums/c3...ilys/boobs.gif


Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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  #4  
Old 12-17-2011, 08:33 PM
ROLLGUY's Avatar
ROLLGUY
 
Join Date: Oct 2007
Posts: 5,314
Quote:
Originally Posted by charmalu View Post
The aluminum or "Light Alloys" as mentioned in the FSM, come in 2 widths.

The 240D used a 5 1/2 inch , and the 300D used a 6 inch.
Charlie
Yes, and the 6 inch wide wheels are VERY hard to find, and expensive. I sold the one 6 inch wheel I had for $75.00.
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  #5  
Old 12-17-2011, 08:48 PM
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Join Date: May 2007
Location: Out in the Boonies of Hot, Dry, Dusty, Windy Nevada
Posts: 9,585
I have only come across one set of the 6 in wheels, last summer in sacramento PNP.

Here is a thread I started, asking about the 240 aluminum rims.
240D Aluminium Rims

This thread discusses the size/length of the lug bolts.
is there a difference between the 240D and 300D rear hubs?

Post #13 from the above thread, it states:
Observe wheel bolts.
1. For light alloy rims only.
2. For light alloy disc rims and steel rims only

# 2 is correct.

In my 240D owners manual it states:
1. For forged light alloy rims only.

this would mean for the aluminum Bundt wheels. this wheel uses the longer bolt.
the 240 light alloy and the steel wheel uses the shorter bolt with the recess and star in the middle.

Here is one from Benz-World. Thanks to ARMY.
W123 Aluminum disk wheel questions - Benzworld.org - Mercedes-Benz Discussion Forum
Charlie
__________________
there were three HP ratings on the OM616...

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

http://i30.photobucket.com/albums/c3...ilys/boobs.gif


Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Last edited by charmalu; 12-17-2011 at 09:06 PM.
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  #6  
Old 12-18-2011, 08:12 AM
1978 300D, Georga car
 
Join Date: Dec 2010
Posts: 208
I want to keep the original steel. Yes they are heavy but isn't the whole car? I just repainted the hub caps. I will repaint the rims and buy 2 new front tires but really if I can find 2 good rims with tires cheap that would be sweet.
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  #7  
Old 12-18-2011, 10:17 AM
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Join Date: Sep 2001
Location: Concord, MA
Posts: 603
5.5's OK for wagon?

Thanks for info. I never new about the two sizes of the aluminum hubcap-type wheels. Just last year, for my 84 300TD wagon, I got rid of my bundt and steel wheels (for summer and snow tires) and changed to two sets of the smaller 5.5" aluminum wheels (the ones with the four discontinuous stripes).

I did this because
1) I prefer the look of hubcaps,
2) wanted only one size of wheel bolts,
3) I really don't like the look of bundts, I hate cleaning them, and they look like crap when they get old and blemished,
5) light weight - easy to handle when changing snows.

I use OE size tires (195 70 14) for both summer and winter tires. Also, I don't have painted wheel covers....I clean off paint and I really like the look of nice clean stainless covers.

Also, I did not get the wheel cover clips with the nylon pads...they are way too expensive. I use regular steel clips..I don't care about scratching wheels. Also, I installed 6 clips on each wheel cover instead of 4...its a little more difficult to remove and install the covers, but it ensures that I won't lose a cover from a bump in the road.

Two questions:

1) Is there any problem using these wheels on my wagon?

2) Are the aluminum wheels more fragile than steels? e.g. are they more easily bent if you hit a major pot hole?

Thanks,

Mark

(P.S. I would have LOVED to get my hands on two sets of those 6" alum. wheels for my wagon, but it sounds like they are so rare as to make that almost an impossibility, not to mention very costly.)

Thanks,

Mark
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1984 300TD Wagon, 407,800 mi (current daily driver)
1985 300DT Sedan, 330,000 mi (gone to that great autobahn in the sky)
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  #8  
Old 12-18-2011, 03:25 PM
Registered User
 
Join Date: Sep 2004
Posts: 8,428
Quote:
Originally Posted by MarkM View Post
Are the aluminum wheels more fragile than steels? e.g. are they more easily bent if you hit a major pot hole?
A steel wheel will bend more readily than an alloy wheel.
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