> After getting my engine re-built i now get only 260kms per tank of gass
> (60 litres)
>
> I just want to know if this is normal or if i should get it checked.

Check/replace temp II sensor (side of thermostat housing, blue, < $10).
Check/replace O2 sensor (get the generic replacement, which is much cheaper,
from one of the on-line vendors).

Bentley has procedures for checking them.  If you are electrically gifted,
consider making a Digitool.  See instructions at:

http://scribers.midwest.net/midwesty/vw/Vanagon/DigiFantTool/

-Karl

Karl and Kristina Bloss, Trexlertown, PA
'87 Westfalia Weekender  "Beverley" - 192K miles
http://www.enter.net/~bloss/vw/
PA/NJ Vanagon owner's mailing list: http://www.enter.net/~bloss/vw/pavanagon/