cooling problem?

[burgerman]

 Hi all, as the evenings are getting cooler i thought i would add some antifreeze to my 300tdi truck cab, also added a thermostat, which it didnt have at all previuosly,
  So far so good  filled up coolont plugs removed ect, run it up, all good heater blowing hot air, BUT the coolont tank is stone cold still, had it runing for over 2 hours and a 10 mile drive round town and dual carrigeways, temp guage just sat half way ( as norm)  checked when i got home, still cold,
   I would of thought if it were a air lock after all that running something would have shown up ?


Am i just paranoid  8-[ 

       P.S       Its a full blown winch comp truck so only goes out every few weeks to play  :)

[tack43]

Blocked pipe? That little valve thingy in the pie sludged up?  :?

Rich

[burgerman]

 Was wondering about that, i shall order one up tomorrow (unless its silly dear) and see what happens  :-k


 Watch this space  :D

[burgerman]

 Any idea of a part No  :-k  To try n help - 1 pipe comes out of the bottom of the header tank then goes into a pasticSplitter? thene goes off into 2 pipes, its the plastic "splitter" bit im after, Many thanks