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 > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-11-2004, 04:30 PM
Registered User
 
Join Date: Jun 2002
Location: Monrovia, CA
Posts: 496
86 300E - Trying to Repair Airbox Housing

Hi,

I'm hoping someone can help me in figuring what would be best to use in repairing my airbox housing. I just purchased a good used one yesterday, but today managed to crack one of the mounting brackets removing a stubborn flex-mount that was left on it. In removing the stuck nut, the mount twisted and cracked most of the way through. Does anyone know what material the lower airbox housing is made of and what would be best to use to attempt a repair? I was thinking of using JB Weld just because it usually works on about anything, but thought I'd ask first. Also, should I try to reinforce the area with some sort of mesh imbedded in the JB Weld (or whatever) over the surface of the crack?

Thanks for any help

Gary

Attached Thumbnails
86 300E - Trying to Repair Airbox Housing-dsc01936-85.jpg  
Reply With Quote
  #2  
Old 04-11-2004, 05:29 PM
Bud
Guest
 
Posts: n/a
I had exactly the same problem. I tried epoxy a couple of times but eventually bought a new air filter housing. You have to buy the whole thing if you get it from a dealer including a new filter plus top and bottom.

It cost me $133.65 from Caliber Motors which is a Mercedes dealership that discounts parts.

I also eventually twisted the metal off the rubber on one of the mounts and replaced that as well.

I am now very careful about not overtightening the nuts.
Reply With Quote
  #3  
Old 04-11-2004, 10:02 PM
Registered User
 
Join Date: Jan 2002
Posts: 18,355
A couple of layers of cloth and epoxy resin would probably work.
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #4  
Old 04-12-2004, 12:51 AM
fahrgewehr2's Avatar
Registered User
 
Join Date: Aug 2003
Location: Wilmington, NC
Posts: 1,264
I still have the one off of my 124 parts car (300E 103 motor) if you want it. $30.00- no broken mounting points.

West Marine sells small epoxy kits for $10.00 or so which would probably do the job.
__________________
'90 300SE 298k
-300K and it gets put into retirement.
'80 300D 255k Purchased new by family in 1980.

Had a:
1973 220 (gas)
1980 300SD
1992 400E
Reply With Quote
  #5  
Old 04-12-2004, 02:01 AM
wbain5280's Avatar
Registered User
 
Join Date: May 2001
Location: Northern Va.
Posts: 3,386
ABS plastic is difficult to repair.
__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.
Reply With Quote
  #6  
Old 04-12-2004, 02:26 AM
haasman's Avatar
Registered User
 
Join Date: Jun 2001
Location: San Francisco, CA
Posts: 3,097
I had to repair one of the feet on the 300e air box. I used JBWeld in two coats, letting the first dry before the second and it has held well. I think the idea of using some sort of mesh, like a screen between layers would be good.

Ideally of course, replace it.

Haasman
__________________
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)
Reply With Quote
  #7  
Old 04-12-2004, 04:34 PM
Registered User
 
Join Date: Jun 2002
Location: Monrovia, CA
Posts: 496
Warren,

I don't think that it's ABS. At least it doesn't look like any ABS I'm familiar with. It looks sort of like some type of pressure-molded fiberglass. Does anyone know for sure what they're made of?

Gary
Reply With Quote
  #8  
Old 04-12-2004, 10:23 PM
BlackBeauty's Avatar
BRABUS'ed
 
Join Date: Feb 2003
Location: South East Asia
Posts: 125
My airbox only has 2 mounting points left. The one closer to the firewall broke. Have been driving the car like this for more than a year.

Rgds
Reply With Quote
  #9  
Old 04-12-2004, 11:20 PM
fahrgewehr2's Avatar
Registered User
 
Join Date: Aug 2003
Location: Wilmington, NC
Posts: 1,264
Have any of you switched over to wing nuts?
__________________
'90 300SE 298k
-300K and it gets put into retirement.
'80 300D 255k Purchased new by family in 1980.

Had a:
1973 220 (gas)
1980 300SD
1992 400E
Reply With Quote
  #10  
Old 04-12-2004, 11:57 PM
Bud
Guest
 
Posts: n/a
Quote:
Originally posted by BlackBeauty
My airbox only has 2 mounting points left. The one closer to the firewall broke. Have been driving the car like this for more than a year.

Rgds
I got tired of constantly having to epoxy mine every time I changed oil and needed to lube the throttle linkage. I tried to get away without fixing it and it seemed the air cleaner had more vibration than I felt comfortable with. I eventually got a new one and I feel a lot more comfortable about it now.
Reply With Quote
  #11  
Old 04-12-2004, 11:59 PM
Bud
Guest
 
Posts: n/a
Quote:
Originally posted by fahrgewehr2
Have any of you switched over to wing nuts?
I don't think wing nuts would make any difference. The secret is not to over tighten the nuts. Since I learned my lesson, I haven't had any more problems.
Reply With Quote
  #12  
Old 04-13-2004, 12:28 AM
Registered User
 
Join Date: Apr 2002
Location: Dallas Area
Posts: 400
One way to avoid overtigheting is to install a rubber washer/gasket between the nut and the air box and then tighten it. That way, when you begin to get into the overtighten range, the rubber will start to compress/deform and take the excess load.
__________________
1986 300E (3/2002) Rear ended and totaled (10/2009)
2000 Xterra (5/2000)
1992 400E (11/2009) -Sold
1986 300E (12/2009) - Sold
2004 E500 Wagon (6/2013) - Sold
Reply With Quote
  #13  
Old 04-13-2004, 05:40 AM
wbain5280's Avatar
Registered User
 
Join Date: May 2001
Location: Northern Va.
Posts: 3,386
Quote:
Originally posted by Phalcon51
Warren,

I don't think that it's ABS. At least it doesn't look like any ABS I'm familiar with. It looks sort of like some type of pressure-molded fiberglass. Does anyone know for sure what they're made of?

Gary
Hi Gary, lots of the plastic parts are made of ABS so that's why I assumed, probably an error on my part.

Personally, I would get some metal and bend it to shape. My 300SE is not concorse(sp?) and I would paint the metal black so it's not noticable. I tend to be cheap in some areas and expensive in others.

I hope it stops raining soon so I can overhaul my front end!

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.
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 04:25 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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