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 ShopForum > Technical Information and Support > Vintage Mercedes

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-10-2018, 06:15 PM
Registered User
 
Join Date: Oct 2012
Posts: 8,515
250se, original color for valve cover....

I always thought these were just alloy color, perhaps with a clear coat, from the factory.

Someone told me no, they were painted silver and it eventually wears off. Just like the cadmium plating wears off the injection lines.

I don't know about this. Anyone have any info on just how the valve covers and intake manifolds were protected, or not, from the factory?

I am going to have some parts vapor blasted so they will look new, or newish, but should they get a coat of silver paint or a clear coat?
Reply With Quote
  #2  
Old 06-13-2018, 10:04 AM
Registered User
 
Join Date: Apr 2009
Location: Los Angeles (Altadena)
Posts: 1,589
I've never heard of Mercedes painting valve covers. So I'm listening to this thread in case it actually happened back then. But I really doubt it.
Reply With Quote
  #3  
Old 06-13-2018, 11:14 AM
Registered User
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,076
Clear satin or matte finish coat.
__________________
“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
  #4  
Old 06-13-2018, 11:28 AM
Registered User
 
Join Date: Apr 2009
Location: Los Angeles (Altadena)
Posts: 1,589
Quote:
Originally Posted by Mike D View Post
Clear satin or matte finish coat.
Are you saying you know what Mercedes did? Or that you would recommend that to the original poster....?
Reply With Quote
  #5  
Old 06-13-2018, 11:50 AM
Registered User
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,076
Both. The original "coating" was just a spray on corrosion/oxidation resister. I've never seen it last longer than the first or second time the engine was cleaned. More of a "wax" than an actual sealant. At least that is all I have ever seen on new, crated engines from Mother Benz.
__________________
“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
  #6  
Old 06-13-2018, 12:15 PM
CTD's Avatar
CTD CTD is offline
Registered User
 
Join Date: Jan 2014
Posts: 255
All the valve covers I've seen on Mercedes were made from cast aluminum with no permanent coating of any sort.
Reply With Quote
  #7  
Old 06-13-2018, 06:31 PM
Registered User
 
Join Date: Oct 2012
Posts: 8,515
I think there might have been an original coating but just to protect the parts during the long sea voyage to wherever they were going.

I know Porsche's came new, in the late 60's and early 70's, with a coating of some type that was a very light green in color. But this was due to the high magnesium content. Once the car was in use then just expelled oil and whatnot would protect the transmission cases and engine cases. But uncoated the slightest bit of salt water would slowly eat them away.

I have been working on this and I really think that there was no paint or coating used at the time because nothing existed that would have been right for the job. Not for long term use, anyway.

But I will very likely lightly spray a clear coat, or that is have it done since I am not that talented and I want it to look good. The painters tell me the big danger to clear coat is UV light, not something you normally find under the hood.

Any other comment on this would be welcome. Anyone know what concours cars are treated with besides a lot of care?

I did check with a guy I know who has a large car collection. He was no help since none of his cars are driven, just restored and displayed.
Reply With Quote
  #8  
Old 06-14-2018, 01:55 AM
Squiggle Dog's Avatar
MBCA Member
 
Join Date: Jul 2008
Location: Surprise, AZ, USA
Posts: 2,733
I thought the factory put wax-based cosmoline on the valve covers.
__________________
DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 343,000+ Miles
Reply With Quote
  #9  
Old 06-14-2018, 11:34 AM
Registered User
 
Join Date: Apr 2009
Location: Los Angeles (Altadena)
Posts: 1,589
Quote:
Originally Posted by Squiggle Dog View Post
I thought the factory put wax-based cosmoline on the valve covers.
...but that would offer temporary protection only, right? Sort of like the blue stuff we see on new white wall tires...?
Reply With Quote
  #10  
Old 06-14-2018, 04:08 PM
Squiggle Dog's Avatar
MBCA Member
 
Join Date: Jul 2008
Location: Surprise, AZ, USA
Posts: 2,733
Quote:
Originally Posted by ScooterABC View Post
...but that would offer temporary protection only, right? Sort of like the blue stuff we see on new white wall tires...?
Yeah, it's just so that they wouldn't oxidize before the car was delivered. It typically would come off in short time, but I've seen baked-on remnants of it on high-mileage cars as well. If it wasn't washed off early in the car's life, it would get stuck on there almost permanently.

Corrosion of head covers isn't an issue in most conditions. They only time I've really seen it be an issue is if I car was parked for decades in a very damp environment or out by the ocean.

It's no different than the aluminum heads, intake manifolds, upper oil pans, or thermostat housings--they were just raw aluminum from the factory and sometimes coated with cosmoline.
__________________
DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 343,000+ Miles
Reply With Quote
  #11  
Old 06-15-2018, 11:56 AM
Registered User
 
Join Date: Oct 2012
Posts: 8,515
Quote:
Originally Posted by Squiggle Dog View Post
I thought the factory put wax-based cosmoline on the valve covers.
I know VW did this to protect the cars from the sea voyage. But this applied to the entire car.

In 1971 I took a guy to pick up his new Super Beetle. One rear fender looked different. As it turns out the dealership was moving the car around the yard and dented that fender. They replaced it with one from another car. But no one washed off the cosmoline (?)

So they took it back to make-ready and cleaned it up. They threw in a set of floor mats, those fiber mat types they used back then, to ease things over.
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 11:57 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, 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