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Overheating today any ideas for a novice

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    #16
    imported post

    Jasper I know that mate but that's about it, how different it looks from the original Stag type I have no idea. Will send pic the morn, still on steap learning curve so bare with me

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      #17
      imported post

      Hi Mike,

      When new to the club and the Forum and the Stag itself, we are all on a steep learning curve, so don't worry about that.

      You are doing the right thing and asking about things you are not yet sure of. I'm doing exactly the same.

      There are also some really well respected and knowledgeable people on here (I don't include myself in that by the way) so stick with it. Ask away.

      Hope you can enjoy her soon, without worrying too much.

      All the best.

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        #18
        imported post

        Moraystag wrote:
        Jasper I know that mate but that's about it, how different it looks from the original Stag type I have no idea. Will send pic the morn, still on steap learning curve so bare with me
        Hi Mike,

        If you have a Kenlowe fan fitted and still have the viscous fan as well, then the kenlowe will be fitted in front of the radiator as it is the only place it can go. So in effect there will be a fan in front and another (engine fan and viscous) behind the rad.

        Rgds...Al.

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          #19
          imported post

          Deffinately not a Kenlowe chaps just checked and cross referenced haynes manual.

          When the car is running the fan rotates and seems to increase with the revs. But when stopped I can rotate the fan freely, is this correct guys, or is there something far wrong

          Oh and checked old reciept from 2001that was given along with a load of other paper work when I bought the car last year and it turns out it's not the reciept for the car I now own butanother that did have a Kenlowe fitted.

          Mike

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            #20
            imported post

            Mike

            All sound fine to me. You should be able to turn a viscous fan when the car is not running. Time to enjoy after all the hassle you have had.

            Nigel
            Mk2 1976 Delft Blue with Beige Interior. TV8 and ZF 4 Speed

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              #21
              imported post

              Just read through the Haynes book and it has a fault diagnosis paragraph.

              One of the things that are identified as a possible cause is mixture to weak. Funnily enough just had a garage do work to lower emmission levels, this might be the cause of the increase in temperature which was not evident before this was done??

              The temperature gauge always sat bellow the half way mark before

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                #22
                imported post

                Mike

                Weaker mixture can cause hotter running but I wouldn't expect the increase to be significant. Mine has never overheated but in the recent hot weather I have seen the gauge move slightly above the midway point. As you have not driven it for a while then driving in the heat will be a first for you I guess?

                As you have just sorted the pressure problem then I would give it a good run and so long as it doesn't rise close towards the red then you should be OK.

                Nigel
                Mk2 1976 Delft Blue with Beige Interior. TV8 and ZF 4 Speed

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                  #23
                  imported post

                  V Mad wrote:
                  Matt, if your fan does not turn by hand it is siezed and therefore failed. OK it will cool your engine but it will also drain a lot of power, and make more noise.

                  Viscous fans are supposed to 'slip' when you rev so they run at a lower speed than the engine.
                  If it is seized, don't leave it that way.

                  Years ago I had one explode due to the excess speed it was running at when it was siezed.

                  It took out the radiator, battery, expansion bottle, top hose and put a large bulge in the bonnet ~nearly broke through!

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                    #24
                    imported post

                    Mike

                    Had my engine rebuilt a few years ago and by chance a few weeks after the rebuild I decided to check the viscous fan, I found that there was very slight play in the fan so decided to change the coupling, wow what a difference, the car was not overheating before the change but with the new coupling cooling was much improved, I would recommend that anyone with a Stag that has no history of a viscous coupling change to fit a new one as a matter of course, just make sure you get a decent quality one.

                    Dave
                    sigpic

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                      #25
                      imported post

                      Moraystag wrote:
                      Deffinately not a Kenlowe chaps just checked and cross referenced haynes manual.

                      When the car is running the fan rotates and seems to increase with the revs. But when stopped I can rotate the fan freely, is this correct guys, or is there something far wrong

                      Oh and checked old reciept from 2001that was given along with a load of other paper work when I bought the car last year and it turns out it's not the reciept for the car I now own butanother that did have a Kenlowe fitted.

                      Mike
                      Hi Mike

                      Grab fan and spin if it stops in 1/4 -1/2 turn it is OK anymore start looking for play as may be on the way out.

                      As for temp problem yes the cap but I had this problem and found the wrong thermostat had been fitted (MK1 no foot) to my MK2.

                      Stuart

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                        #26
                        imported post

                        Well guys I can spin my fan freely when the car is stopped. I am getting a bit confused as there seems to be a contradiction here. Either it should spin freely when car is switched off or maybe not.

                        Took the car out this evening for 20 mile round trip. The weatherv here is way colder than yesterday, gauge never went above just bellow half way. Sat it idling outside the garage for 15 mins aftyer runand the temp creeped up to just above half way mark.

                        What do you think guys, I feel that it's ok but still concerned about the viscous coupling. Am taking the car for 120 mile trip tomorrow, so am a bit wary now to say the least

                        Comment


                          #27
                          imported post

                          Hi mike sometimes new Stag owners are concernd .Main problem o/h ,THERE ARE guys on here who could piss on so called mechanics .Firstly you said your son overfilled .ok .ovrer.Firs6filling creates pressure than can cause many problems FIrst drain the sytem then fill with with at least 30% anti freeze .Run engine Feel the top hose .then check expansion bottle put top on ex bott run engine make sure the system is sealed Run engine check temp on guage THAT COULD incorect. After running/ for 10 mins take the top off the expansion bottle and if you rev the engine and you get bubbles as you rev then it points to H/ gastet failure however if you are loosing water and you have top top up say 75 miles so what enjoy your CAR REgaards Tony

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                            #28
                            imported post

                            Hi Mike

                            The fan when flicked should have an element of resistance allowing only a small turn before it stops,if it spins easily when flicked and carries on spinning till its motion runs out its no good.

                            Mark

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