Heater/cooling woes

Started by Anthony Miller, April 25, 2009, 12:03:05 PM

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Anthony Miller

As another winter begins to bear down upon us I thought it might be time to sort out why my heater refuses to get hot or warm even for that matter.When I place my hand on the heater input hose which comes out of the back of the engine(3.0l V6) I notice that it is not hot like the hoses at the front engine.A good flushing is what I think it needs but I'm not sure how to go about it i.e. which hoses to pull off where. Any thoughts or experiences greatly appreciated.Thanks in advance
Anthony
Now-  '99 156 2.5l V6 (rosso)
         '88 75 3.0l V6 (grigio)
Then- '81 Giulietta 2.0l transplant (ol whitey)
         '82 Giulietta 2.0l transplant (ol brownie)
         '82 Giulietta 2.0l TS transplant (ol red)

enzo1891

you may have blocked heater core or heater tap cable is broken which was a common fault on alfa 75 if interested i can have look for you feel free to call me 0412 152 816. vince

Anthony Miller

Cheers Vince, I think I've sorted it. My alfa specialist had flushed the heater core 4 times only for it to stop working a week later. I suspect that he flushed only the heater core and the blockage was further down in the system. Ignorantly, I disconnected the return hose from the bottom radiator hose, then disconnected the hose from the rear of the inlet manifold, and flushed the system as a whole. Now it works better than ever
Now-  '99 156 2.5l V6 (rosso)
         '88 75 3.0l V6 (grigio)
Then- '81 Giulietta 2.0l transplant (ol whitey)
         '82 Giulietta 2.0l transplant (ol brownie)
         '82 Giulietta 2.0l TS transplant (ol red)

enzo1891

make sure you bleed the cooling system.

Anthony Miller

Yep did that, had to replace the brass bleed nut as it developed a crack due to over zealous application.Sometimes I don't know my own strength,D'oh.
Anthony
Now-  '99 156 2.5l V6 (rosso)
         '88 75 3.0l V6 (grigio)
Then- '81 Giulietta 2.0l transplant (ol whitey)
         '82 Giulietta 2.0l transplant (ol brownie)
         '82 Giulietta 2.0l TS transplant (ol red)