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 01-27-2014, 06:13 PM
JamesDean's Avatar
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,038
Some useful info from NGK:
http://www.ngksparkplugs.com/docs/tech/design_symbols_plugs.pdf

I see no mention of nickel core. All the websites I looked at said copper core.
NGK 7732 BP5ES-11 Nickel Spark Plug


Quote:
A standard spark plug traditionally uses a nickel-alloy outer material fused to the copper core. Some plugs include a coating or pad of precious metals such as iridium or platinum to extend plug life. But as a general rule of thumb, all spark plugs utilize a copper core.
Quote:
Copper
Nickel is a hard, inexpensive metal used in most all spark plug designs. Nickel is not a good conductor and has a high level of resistance, so most center electrodes feature a copper core, covered in a nickel-alloy. This creates a balanced, team effort where the copper core conducts electricity and promotes heat dissipation, and the nickel-alloy outer material prolongs the life and durability of the Center Electrode.
Quote:
Nickel
While nickel is a choice material used in the majority of spark plug designs, it has its limitations. Tungsten and Iridium, for example are 2x harder and 3x stronger. Gold and Silver have minimal electrical resistance in comparison to nickel. And Iridium, Platinum, Rhodium, Titanium, Tungsten and Zirconium all have a higher melting point. Some of these precious metals are used to enhance nickel electrodes to prolong a plugs life in high performance designs.
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
Reply With Quote
  #2  
Old 01-27-2014, 07:13 PM
Registered User
 
Join Date: Jan 2003
Location: Matthews, NC
Posts: 1,356
Ok, the -11 means it is designed for a wider gap. I just sent the question to NGK to find out about the nickel core vs the copper core. I'll let you know what I find out.

Paul
__________________
84 500 SEL (307,xxx miles)
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 05:14 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page