View Single Post
  #31  
Old 02-18-2017, 10:25 AM
Diseasel300's Avatar
Diseasel300 Diseasel300 is offline
Registered User
 
Join Date: May 2016
Posts: 6,071
The tach could also have dried out (bad) capacitors. My SDL had that issue. When the car was first started, it would work fine, but after a few minutes the tach would sometimes reset to 0, or randomly peg and wobble from time to time. When I recapped the clock, I did the rest of the instrument panel at the same time. Put a stop to that behavior. The Gen II W126 doesn't have the same black cap in the engine bay, it uses RPM pulses from the EDS system, but the tach itself is similar between the two.
__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]
Reply With Quote