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    Heater Fan

    Has anybody done a heater fan upgrade?

    #2
    Why? Mine gives a good blast. Perhaps yours is only working on the slow speed.
    Mike.

    Comment


      #3
      Check switch is correctly wired for 2 speeds. As lingen says
      There are 2 secrets to staying on top :- 1. Don't give everything away.
      2.

      Comment


        #4
        Gives both speeds,but noisy motor,so while the motor is out,I thought I might upgrade,if there was one.What is the motor like to get at?

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          #5
          Rumour has it that the motor was the first item in the Stag production line and the rest of the car was built around it. A tedious job to get the heater unit out and remove the motor but, on the other hand, it doesn't need special tools or knowledge.

          Drew
          The answer isn't 42, it's 1/137

          Comment


            #6
            Some pics here (hoping that photobucket still works)
            https://s221.photobucket.com/user/da...?sort=4&page=2
            The answer isn't 42, it's 1/137

            Comment


              #7
              also...
              Stag Heater Disassembly.pdf
              The answer isn't 42, it's 1/137

              Comment


                #8
                Originally posted by tiganut View Post
                Gives both speeds,but noisy motor,so while the motor is out,I thought I might upgrade,if there was one.What is the motor like to get at?
                Quite easy, just remove complete dashboard etc, !

                Comment


                  #9
                  the heater box is the first item fitted in many cars, so is pain to remove

                  Comment


                    #10
                    Taking the heater assembly out is not difficult but it is time consuming. Fine if you have nothing else to do for a while. Half a day to take the assembly out. Then you have to disassemble the box. and sort your problem.
                    Longer to put it together You can get some lubrication on to deal with the squealy bits, replace the seals, oil the control cables, give it a coat of paint etc Wash out the matrix and for good measure you might also replace the 'o' ring in the control valve, whilst it is accessible, and then put the whole thing together again. And you will find lots of other things to distract you as well. Its a lot of easy, non demanding work but it will take time.
                    There was a thread last December and perhaps the 'interim solution' that Ceejay 72 found, might help you along
                    Brian
                    Ceejay 72 Ceejay 72 replied

                    18th November 2019, 18:11

                    Thanks for the advice Brian I think this is a job for the depths of winter In the meantime, I've found an interim solution. I removed the chrome grille from the air intake and located the twin entrances to the fan compartment. I fixed a length of VERY narrow bore poly tubing to a length of coat hanger bent at the end and inserted the bent end into the fan chamber, aimed at the motor. I then fixed a can of WD40 to the other end of the tubing and gave a good squirt to each end of the motor.
                    This has resulted in the fan coming back to life at full speed. How long it will last I don't know, but it'll do for now!


                    Brian

                    Comment


                      #11
                      Cheers guys,worth a try.

                      Comment


                        #12
                        Originally posted by dasadrew View Post
                        also...
                        [ATTACH]n790994[/ATTACH]
                        Thanks for posting this - it has been very helpful, though something I'm stuck on and wonder if somebody can advise -


                        "Noting the position of the levers, remove the cranks from the end of the flap spindle shafts"


                        How are the cranks attached to the flap spindle shafts, and how are they removed?

                        Comment


                          #13
                          I'm referring to the heater disassembly instructions posted by Drew

                          Comment


                            #14
                            If I recall correctly, they just pull off. The shaft and levers are splined, so it is easy to get them back in the correct position if you felt tip mark them to within one spline accuracy.

                            Drew
                            The answer isn't 42, it's 1/137

                            Comment


                              #15
                              OK thanks - will give that a go.

                              Comment

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