Top tip for
sorting a less than adaquate heater!
Ive read several times on here of heaters not "heating" properly, or bursts of then nothing....
Whilst putting my car back together i noticed something that may contribute if not cause a great deal of problems! (otherwise un noticeable in general day to day running)
At the rear of the r/h cylinder head (V6 models) there is a heater/water hose that runs from the top hole in the bulkhead to the centre of the "V" (actually joins to l/h head) where this pipe does its last 90deg turn into the back of the head there is a "T" or "Y" piece splitting the 13mm pipe 2 ways (once to the head 13mm, other is approx 8mm) thus sending coolant back to the header tank.
(t spark uses the same header tank so should have a similar union to the rear of the head)
This "Y" piece union corrodes very badly and in cases (like mine) gets 90% blocked! Since the engines coolant system does NOT rely on the heater pipes being connected, normal cooling stays unaffected!
But what does happen however, should this union become blocked, it prevents coolant flowing back from the matrix, allowing it to partially heat up (eventually from its feed) but never greatly!
Hope this little flash of inspiration makes sense and maybe of use
The BORED ©™ No 6. The old 75'er no 2
The BORED Collective ©™