Engine fan

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  • milliemarlin
    club member
    Club Member
    • Nov 2011
    • 578

    #16
    Re: Engine fan

    This is my MK IV Air Flow Detector (AFD) it is surprisingly good at showing air flow. After putting Millie through her SVA I discovered the demist fan was connected the wrong way round. Fortunately, the inspector only used his fingers to detect air movement. In case you can’t guess it’s a bit of tissue paper sticky taped to a stick. It will even give you an indication of smooth flow or turbulence.
    Paul
    Attached Files

    Comment

    • Gareth
      club member
      Club Member
      • Nov 2011
      • 498

      #17
      Re: Engine fan

      I love hi-tech solutions Paul. Can I buy one off e bay??? Lol!

      Comment

      • lil_red_roadster
        club member
        Club Member
        • Nov 2011
        • 708

        #18
        Re: Engine fan

        I wonder what MKs I-III comprised..?
        Marlin Roadster, LWB...1860 B Series + Ford Type 9
        Renault Espace 54mm front calipers, vented discs, cycle wings and adjustable tie-bars.

        Comment

        • Gareth
          club member
          Club Member
          • Nov 2011
          • 498

          #19
          Re: Engine fan

          Well! I can report that the fan now works. There's a positive gale blowing in there! So well, in fact, that when I stand alongside the car with the bonnet open and give the engine a rev my hair blows (well, what's left of it...) in the wind! It's like one of those shampoo ads! Even my beer tastes better!
          The weird thing is, putting it back together I found that the bolts fouled the water pump webbing meaning the bolts were never tightened fully for years even though the pully didn't wobble. Correct length bolts used and all seems well.
          Yay, roll on summer!
          Gareth.
          Attached Files

          Comment

          • greyV8pete
            club member
            Club Member
            • Nov 2011
            • 1618

            #20
            Re: Engine fan

            Originally posted by lil_red_roadster View Post
            I wonder what MKs I-III comprised..?
            Mk 1 Wet finger held in air stream

            Mk2 Talc powder in air stream

            Mk 3 Shreds of tissue from cleaning off talc mess

            Mk 4 Eureka!

            :-)

            Comment

            • Gareth
              club member
              Club Member
              • Nov 2011
              • 498

              #21
              Re: Engine fan

              Just a thought, whilst there's a couple of pictures of mine on this thread...is it possible to those in the know, to identify if I have a mk1 or mk2 steering rack.
              Just curious.
              Cheers Gareth.

              Comment

              • Blue Marlin
                club member
                Club Member
                • Mar 2015
                • 314

                #22
                Re: Engine fan

                Hi Gareth,

                mk2 I'd say, due to flange visible at steering knuckle end and lack of flange on opposite end.



                Derek
                Last edited by Blue Marlin; 11-04-17, 08:27 PM. Reason: Link added
                Stumbling around in the dark
                Marina based SWB roadster
                Alfa Romeo 1750 with 5 speed box

                Comment

                • stevejgreen
                  • Nov 2011
                  • 3480

                  #23
                  Re: Engine fan

                  Originally posted by Blue Marlin View Post
                  Hi Gareth,

                  mk2 I'd say, due to flange visible at steering knuckle end and lack of flange on opposite end.



                  Derek
                  Inevitably all the information you need to spot the type of rack is here

                  Log into your KeepandShare account with your account name and password.

                  Comment

                  • stevejgreen
                    • Nov 2011
                    • 3480

                    #24
                    Re: Engine fan

                    Originally posted by greyV8pete View Post
                    Mk 1 Wet finger held in air stream

                    Mk2 Talc powder in air stream

                    Mk 3 Shreds of tissue from cleaning off talc mess

                    Mk 4 Eureka!

                    :-)
                    5. Elastoplast for when finger makes contact with a moving fan.

                    Comment

                    • HairyDave
                      club member
                      Club Member
                      • Jun 2015
                      • 872

                      #25
                      Re: Engine fan

                      As has been said your fan is on the wrong way round, but it will still push air the right way as it is . Just not efficiently. I have had a person tell me that I the fan is turned around it will blow instead of suck. It wasn't April the 1st.

                      Comment

                      • greyV8pete
                        club member
                        Club Member
                        • Nov 2011
                        • 1618

                        #26
                        Re: Engine fan

                        Originally posted by HairyDave View Post
                        As has been said your fan is on the wrong way round, but it will still push air the right way as it is . Just not efficiently. I have had a person tell me that I the fan is turned around it will blow instead of suck. It wasn't April the 1st.

                        Yep! A common misunderstanding. If you take a right hand thread bolt and turn it around it is still a right hand thread bolt! Simples!

                        Comment

                        • Gareth
                          club member
                          Club Member
                          • Nov 2011
                          • 498

                          #27
                          Re: Engine fan

                          All I can say is, with the fan the correct way round the difference is more than considerable.
                          Hope to see you all at Stoneleigh. The way the fan is performing now, I should be there 10 minutes after leaving Chester!!!
                          Gareth.

                          Comment

                          • Tony Stott
                            club member
                            Club Member
                            • Nov 2011
                            • 654

                            #28
                            Re: Engine fan

                            turbo air blower power it is then!! ; - ))

                            Comment

                            • Gareth
                              club member
                              Club Member
                              • Nov 2011
                              • 498

                              #29
                              Re: Engine fan

                              Well, I took the Roadster out for a proper drive today, not hanging around, up to the Horseshoe Pass to test out the fan, and although it was cold, the temp gauge was reading half of what it normally did.
                              Some decent engine cooling at last, or the gauge is buggered!
                              Gareth.

                              Comment