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 10-24-2005, 12:51 AM
Registered User
 
Join Date: Oct 2005
Posts: 1
Spaztic Tachometer

I've seen some auctions on ebay about a spaztic tachometer, but this one really has me wondering. First, the tach will NOT work up until you get about up to 3000rpm(it just jumps right to it), an when it gets to 3000, it quivers up and down a bit. heres the catch! It works absolutely FINE when the A/C is on?!?!?!?! Someone at least provide an explanation of this!
BTW this is a 1982 300D Turbo Diesel with 195k on it

Reply With Quote
  #2  
Old 10-24-2005, 12:04 PM
John in Idaho
 
Join Date: Aug 2004
Location: Idaho
Posts: 5
At least in the case of my 1981 300TD, wierd stuff happening in the instrument cluster was due to cold (i.e. bad) solder joints on the circuit board at the back of the cluster. I removed the cluster and re-heated the main ground connection - you can easily spot it as it is one of the larger areas of solder and is where there is a connection to the metal of the cluster which is ground. While I was at it, I touched up all the rest of the solder points on the circuit board and all worked fine thereafter.
John

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 06:03 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