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 03-14-2016, 12:38 AM
koooop's Avatar
Registered User
 
Join Date: Mar 2016
Location: So. Cal.
Posts: 412
35 year old cosmoline how to remove?

This stuff is like baked on snot! Cooking for 35 years under the hood, what gets this poo off?

Any suggestions?

Thanks
Reply With Quote
  #3  
Old 03-14-2016, 01:32 AM
Mad Scientist
 
Join Date: Dec 2012
Location: Oregon
Posts: 1,466
Soak in kerosene or diesel. Didn't get that way in a day, likely not going to be undone in a day.

I agree, what's it on?
Reply With Quote
  #4  
Old 03-14-2016, 07:23 AM
Registered User
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,472
Ammonia works also.
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now
Reply With Quote
  #5  
Old 03-14-2016, 08:46 AM
Stretch's Avatar
...like a shield of steel
 
Join Date: Sep 2009
Location: Somewhere in the Netherlands
Posts: 14,452
Eastwoods "undergone"
__________________
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
  #6  
Old 03-14-2016, 01:31 PM
koooop's Avatar
Registered User
 
Join Date: Mar 2016
Location: So. Cal.
Posts: 412
When these cars were originally imported to the US Cosmoline was put all over everything the engine compartment before they were put on the ship. Apparently the dealer did not remove it prior to delivery to the first purchaser.

So I have 35 year old cosmoline in my engine compartment.

I'll find some Eastwoods "Undergone" and give it a shot. I think I'll try some 3M adhesive remover as well, I tried the obvious first since the stuff had been there so long but the citrus based solvent and simple green did nothing. I hit it with a pressure washer thinking maybe this junk is so old it'll just pressure wash off, but very little luck with that plan. I does come off with mild rubbing compound but that would take most of my life to do.
__________________
1981 240D Four on the floor, Orient Red over Parchment, bought with 154,000 but it's a daily driver and up to 175,000 miles, mostly original paint and all original interior.
Reply With Quote
  #7  
Old 03-14-2016, 01:53 PM
Registered User
 
Join Date: Jan 2003
Location: Gastonia, NC
Posts: 1,341
Steam cleaner?

Find someplace that has a steam cleaner. Seems like that would work.
Reply With Quote
  #8  
Old 03-14-2016, 01:57 PM
funola's Avatar
Registered User
 
Join Date: May 2005
Location: NYC
Posts: 8,146
Why not leave it? It's protected it from corrosion all these years so must be good stuff.
__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
Reply With Quote
  #9  
Old 03-14-2016, 01:57 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
How thick is the coating you are dealing with ?
Is it on something that got really hot like the exhaust manifold ?

If you can find Actual Trisodium Phosphate... have to watch because some boxes say ' TSP' but no longer have that inside them...
make a paste with that and leave it on the area... then use hot water under pressure if you have it to wash it off... clean all the area since leaving it on paint might be bad...
Reply With Quote
  #10  
Old 03-14-2016, 03:45 PM
Registered User
 
Join Date: Nov 2010
Location: TX
Posts: 3,578
I had remains of it on my cars intake manifold - I simply took a hand held wire brush to it and it flaked off easily.

Ideally the dealer should have removed it when it was being delivered - but I came to know from some real old folks who said that it wasnt removed in salt states to protect the finish of various bits n pieces.

Try a citrus cleaner - it might help. whatever you do dont use anything strongly caustic on aluminium, unless you like oxidised aluminium
__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)
Reply With Quote
  #11  
Old 03-14-2016, 04:34 PM
oldiesel's Avatar
Registered User
 
Join Date: May 2007
Location: florida
Posts: 677
Many years ago i worked in a foreign car dealership the Renault & Peugeot cars came in coated in the stuff,the whole outside of the car! We used a product made by Zep i recently saw A Zep product advertised so they are still around, i would google "Zep products" and see what they have. Don
__________________
Red Green "This is only temporary,Unless it works!"

97 E300D 157000 miles
87 300TD ?141k? miles
Reply With Quote
  #12  
Old 03-14-2016, 05:49 PM
mannys9130's Avatar
Ignorance is a disease
 
Join Date: Aug 2013
Location: Tucson, AZ
Posts: 1,246
I second the steam clean approach. Whenever I need to clean an old surplus gun that's coated in cosmoline, I clean the metal by leaving it in the sun and scrubbing it with gasoline. I clean the stock by putting it in a black trash bag and leaving it in the sun.

The steam will melt the cosmoline and it will drop off the engine, hopefully into a drip tray that you place underneath. This task is too large to use gasoline effectively. Barring the use of a steam machine, a hot water pressure washer and a degreaser is the second best option. Take care with a pressure washer though, since liquid water can break vacuum lines and wires due to it being incompressible.
__________________
'84 190D 2.2 5MT (Red/Palomino) Current car. Love it!
'85 190D 2.2 Auto *Cali* (Blue/Blue) *sold*
http://badges.fuelly.com/images/sig-us/302601.png
http://i959.photobucket.com/albums/a...0/sideview.png
Reply With Quote
  #13  
Old 03-14-2016, 05:55 PM
koooop's Avatar
Registered User
 
Join Date: Mar 2016
Location: So. Cal.
Posts: 412
Great ideas, I'm starting with goof off today. It's on painted fenders, plastic etc. in the engine compartment.
__________________
1981 240D Four on the floor, Orient Red over Parchment, bought with 154,000 but it's a daily driver and up to 175,000 miles, mostly original paint and all original interior.
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 01:49 AM.


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