heater

[jon haines]

My heater is only barely warm and as I am using it daily its become a pain in the you know were. So does anyone know how you get some of the great heat the engine creates to go through the heater?

[ElvisWedgely]

Run the engine up to normal running temperature then check the pipes under the bonnet that run to the heater matrix inside the car. If only the inlet gets hot or if they are both cold then the valve that opens and shuts from the interior cable or the cable itself is faulty. If both pipes are hot but still no heat on the interior, the problem could be an air lock.

Tony. TCB.

[RCK974X]

Or could be heater valve isn't opening fully, or could be blocked up, or heater matrix could be blocked up.

Yeah, run engine up to normal, and check that heater feed pipes get as hot as the radiator pipes. If not, there's a blockage (or air lock) somewhere.

[wooly350i]

Don't even have a valve on my 350, would seem pointless, in summer the extra matrix helps to cool the water and you don't have to run the fan.

[wooly350i]

From my experience of dismantling the heater box the air is possibly escaping from box joints or the fan joints to the box or to the bulkhead, the inside of the box is not contoured for aiding air flow and the heat diverter is like a rough fly swat. Wooly

[Wedg1e]

wooly350i said:

From my experience of dismantling the heater box the air is possibly escaping from box joints or the fan joints to the box or to the bulkhead, the inside of the box is not contoured for aiding air flow and the heat diverter is like a rough fly swat. Wooly

John, was it you that did a complete heater re-design recently, or was it Mart the Hat? I'm running out of bts to fiddle with on my car, need to line up next year's projects before Nursy comes up with a carport to paint or trees to lop

[wooly350i]

Hi Ian, merry Christmas matey, I did remake a heater box roughly following the outer dimensions of the old unit but I used some 6mm carbonate sheet to make it because that's what I had in the garage, just screwed the thing together then adding plumbing waste fittings inside to aid some sort of air flow, I did make it so I can extract the matrix from the front by just removing the centre heater / radio housing,sealed the box joints with adhesive so if the matrix leaks I could probably keep tropical fish in there, sprayed it up in nice professional black to match the tyres. John.

[jon haines]

Had a bit of joy with this. it was an airlock which i think i have got rid of but experience tells me it can take a few attempts to really sort it. didnt have a valve and i took off the pipe from the manifold to the heater then the one that comes back to the manifold and ran water from my hose pipe through it to see if there was any crud in there which there wasnt.filled up and burbed the system and it is better but still not great.

[adam quantrill]

Put a scrunched-up plastic bag into the passenger side vent pipe (just behind the trim next to passengers right knee) while means all the heat goes to the driver's side...

[jon haines]

Ah ah good idea adam, I shall do that today before the partying starts!