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 > Mercedes-Benz SL Discussion Forum

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-27-2007, 12:25 PM
meltedpanda's Avatar
Certified Benzaholic
 
Join Date: Mar 2003
Location: Central Ky
Posts: 6,133
Lost in a Sea of Spark Plug suggestions -72 450SL

OK so I searched all the threads here and I may be a bit more confused. I am trying to track down this miss and some have pointed to my plugs so I got to thinking - (not good)
Sooo, I looked through the posts, I find gap range from .032 - .035
and plugs recomendations for a W9dc0- Bosh, 7911 Bosh or Ngk BP6ES.
But also there is referece to 450's VS 560's , early 70's versus 80's

All I want to know is what do I put in my 72 450SL .
__________________
Ron
2011 Porsche Cayman - Bond,James Bond
99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace
Reply With Quote
  #2  
Old 08-27-2007, 04:07 PM
Registered User
 
Join Date: Mar 2004
Posts: 758
NGK BP6ES...they work well, last long and have a broad heat range, use Nevr-Seez on the threads...end of story...

230/8

p.s.: don't be surprised if your miss stays with you at low idle speeds. It is not uncommon and usually associated with minor wear on the points or uneven fuel injector flow patterns.
Reply With Quote
  #3  
Old 08-27-2007, 04:18 PM
meltedpanda's Avatar
Certified Benzaholic
 
Join Date: Mar 2003
Location: Central Ky
Posts: 6,133
Gotcha, thanks
__________________
Ron
2011 Porsche Cayman - Bond,James Bond
99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace
Reply With Quote
  #4  
Old 08-30-2007, 11:31 AM
nobby's Avatar
Automotive Nobbiest
 
Join Date: Aug 2005
Location: Barrie, Ontario
Posts: 821
Quote:
Originally Posted by meltedpanda View Post
OK so I searched all the threads here and I may be a bit more confused. I am trying to track down this miss and some have pointed to my plugs so I got to thinking - (not good)
Sooo, I looked through the posts, I find gap range from .032 - .035
and plugs recomendations for a W9dc0- Bosh, 7911 Bosh or Ngk BP6ES.
But also there is referece to 450's VS 560's , early 70's versus 80's

All I want to know is what do I put in my 72 450SL .
Do you have your owners manual? The correct spark plug recommendations are there. Bosch stamps the gap on the box the plug comes in.
Reply With Quote
  #5  
Old 08-30-2007, 12:04 PM
meltedpanda's Avatar
Certified Benzaholic
 
Join Date: Mar 2003
Location: Central Ky
Posts: 6,133
I do , it lists BOSCH - W175T30 or Champion UN1ZY, , which you see leads to more confusion
__________________
Ron
2011 Porsche Cayman - Bond,James Bond
99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace
Reply With Quote
  #6  
Old 08-30-2007, 03:04 PM
hill's Avatar
Registered User
 
Join Date: Feb 2001
Location: Northern Calif Sacramento
Posts: 736
Quote:
Originally Posted by meltedpanda View Post
OK so I searched all the threads here and I may be a bit more confused. I am trying to track down this miss and some have pointed to my plugs so I got to thinking - (not good)
Sooo, I looked through the posts, I find gap range from .032 - .035
and plugs recomendations for a W9dc0- Bosh, 7911 Bosh or Ngk BP6ES.
But also there is referece to 450's VS 560's , early 70's versus 80's

All I want to know is what do I put in my 72 450SL .
This was from a previous reply.

The plugs I have on the shelf are Super Bosch WR9DC. Bosch has changed there numbering system since 2004 so the new number is WR90dc. The Kragen/Checker internal number is 7512 if they look it up by make and model the will come up with nothing. So 7512 is the magic number. The R in the name of the plug means it is a resistor plug but it takes 20,000 less volts to properly fire a solid copper core VS a platinum plug. Price is now $3.59 a piece, sure am glad I bought 3 boxes of 10 at 1$ back then.[/QUOTE]

The two plugs that you can run are a NGK BP6ES or BOSCH WR90DC. Never a problem in my 107 and she is a oil addict. I set my plugs at 032 and let physics take it to 035.
__________________
Happy Benzing
Darryl, Hill
2005 SL55 AMG Kleemanized
1984 500 SEC
1967 W113 California Coupe
[SIGPIC]
https://picasaweb.google.com/lh/myphotos
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 06:56 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