Author Topic: Sending Unit  (Read 20774 times)

hands_aus

  • Full Member
  • Platinum
  • ******
  • Australia, Queensland, Brisbane
  • Posts: 1543
Re: Sending Unit
« Reply #25 on: July 02, 2007, 05:30:07 »
the 230sl tanks are 12.5 gallons (65 litres)
the 250sl and 280sl tanks are 18.5 gallons (82 litres)

Bob Smith (Brisbane,Australia)
RHD,1967 early 250 SL, auto
Bob Smith (Brisbane,Australia)
RHD,1967 early 250 SL #114, auto, ps , 717,717
best of the best

Naj ✝︎

  • Associate Member
  • Platinum
  • ******
  • United Kingdom, Surrey, New Malden
  • Posts: 3163
Re: Sending Unit
« Reply #26 on: July 02, 2007, 06:50:20 »
quote:
Originally posted by rmmchl

i don't believe these tank hold 21 gallons--------------i know what the manuel says, but I'm being honest-I'll fill up when it looks like its on empty and only put no more than 14 gallons in.



You must have a 230????

230 Fuel Tank:






280 Fuel Tank



naj

68 280SL
« Last Edit: July 02, 2007, 06:52:00 by naj »
68 280SL

J. Huber

  • Full Member
  • Platinum
  • ******
  • USA, CA, Cedar Ridge
  • Posts: 3061
Re: Sending Unit
« Reply #27 on: July 02, 2007, 09:54:17 »
Mine is obviously the smaller -- similar to Naj's first picture but with spare tire poking out.

It takes just about 17 US gals. My reserve is at least 2 maybe 3. can't speak for the bigger ones.

James
63 230SL
James
63 230SL

DavidAPease

  • Full Member
  • Silver
  • ****
  • USA, CA, Chico
  • Posts: 381
  • Audit Committee
Re: Sending Unit
« Reply #28 on: July 02, 2007, 14:57:07 »
Note that Bob's gallons are the Imperial type.  In the US of A, the tank sizes are about 17 and 21.5 gallons.

-David Pease
'66 French 230SL
-David Pease
 '66 230SL (Originally sold in Paris)

hands_aus

  • Full Member
  • Platinum
  • ******
  • Australia, Queensland, Brisbane
  • Posts: 1543
Re: Sending Unit
« Reply #29 on: July 03, 2007, 04:11:49 »
quote:
Originally posted by DavidAPease

Note that Bob's gallons are the Imperial type.  In the US of A, the tank sizes are about 17 and 21.5 gallons.

-David Pease
'66 French 230SL


Yep, Imperial gallons

litres are correct.

Bob Smith (Brisbane,Australia)
RHD,1967 early 250 SL, auto
Bob Smith (Brisbane,Australia)
RHD,1967 early 250 SL #114, auto, ps , 717,717
best of the best

GTMSJ

  • Guest
Re: Sending Unit
« Reply #30 on: October 30, 2007, 14:55:39 »
New user to the forum - the gas gauge on my 1970 280 is doing quite a dance; up, down, hold, up, down, etc.  I'm definitely not a mechanic by trade, but I'm not uncomfortable holding a wrench; how difficult is pulling the sending unit for inspection and possible cleaning?

Thanks,

Gary

jeffc280sl

  • Guest
Re: Sending Unit
« Reply #31 on: October 30, 2007, 15:54:37 »
Gary,

Pulling the sender is easy in these cars.  There is a plug in the center of the trunk area.  Under the plug you will find the sending unit.  Here is a diagram of what to expect.  The sender is comprised of a float suspended on the sides by very thin wires.  As the float rides up and down on the fuel level different impedences are fed from the sender to the gauge to denote fuel levels.  



Download Attachment: Sender.jpg
17.83 KB

Jeff C.
1970 280SL 4-speed