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    Electric fan capillary tstat in top hose

    Hi everyone, have installed an electric fan into my Stag but where the capillary tstat goes into the top hose, it leaks when the engine is running (under pressure). I don’t want to use any form of sealant as I don’t think that’s effective and I don’t have a rubber shroud that goes round the spigot that the hose fits over. Any ideas how I can stop the leak? Thanks

    #2
    Niall, I have the same capillary sensor in the top hose. It did leak, even using sealer. So, when I replaced the hoses last time I cut a small section of the old hose, chamfered the edges and cut a groove in the centre for the sensor. I did use a smear of sealer between the new hose and the “made piece” but it’s hidden, and it hasn’t leaked since.

    Alternatively Kenlowe and others, do, I believe, sell a silicone insert that does what my made up piece does - if you can get one.

    ian F

    Comment


      #3
      Many thanks Ian for your prompt response. When you say chamfered the edges of the small cut piece of the old hose, sorry I don’t follow you. Are you saying the old hose acted as an insert, and you were able to push the new hose over the old cut one?

      Comment


        #4
        I got mine from Holden
        Google Holden Kenlowe Seal.
        Brian
        Brian

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          #5
          I would get the proper thing from Holdens as Brian suggests, it does the job it is designed to do and doesn't leak. I recently removed my Kenlowe as I considered it blocked too much air flow through the rad and was counter productive, but until then never had so much as a weep from the top hose where the capillary tube went in.

          Roger
          White TV8 BW35 no mods and now a Dolly Sprint to keep it company
          So many cars, so little time!

          Comment


            #6
            Many thanks Brian. Just ordered it from Holdens.

            Comment


              #7
              Niall,

              Ignore my (lack of) drawing skills, chamfered or tapered the edges, put the insert with the sensor on the radiator boss, and then slid the hose over the top. Worked for me as couldn’t locate a silicone insert at the time. Glad you’re sorted.

              Ian
              Attached Files

              Comment


                #8
                car builder solutions used to do them as well

                Comment


                  #9
                  This is the best solution I have found: https://daviescraig.com.au/product/t...aptor-kit-0409

                  Comment


                    #10
                    also car builder solutions in different sizes

                    Comment


                      #11
                      I initially had Kenlowe bulb in the top hose but suffered from a persistent small leak. I then fitted this from Revotec https://www.burtonpower.com/water-te...f-revha30.html (not sure if that's the exact one) worked perfectly but it just didn't look right under the Stag's bonnet so I had a my radiator altered so a standard temperature sensor could be screwed directly in the radiator. I also had mounting brackets fitted to directly attach the fan

                      IMG_20181223_113645820.jpg



                      1976 Triumph V8 Manual/OD in BRG

                      Comment


                        #12
                        Originally posted by marshman View Post
                        I would get the proper thing from Holdens as Brian suggests, it does the job it is designed to do and doesn't leak. I recently removed my Kenlowe as I considered it blocked too much air flow through the rad and was counter productive, but until then never had so much as a weep from the top hose where the capillary tube went in.

                        Roger
                        has removing the Kenlowe made a difference on your temp gauge Roger?

                        Comment


                          #13
                          Chaps to avoid the water leak issues, i fitted the capillary bulb onto the outside of the sensor nut with a jubilee clip to hold it tight against the sensor and varied the cut in / out temps to suit, not an inside water temp obviously but the temp adjusting wheel doesnt know that

                          cheers ian

                          Comment


                            #14
                            Originally posted by garyf View Post

                            has removing the Kenlowe made a difference on your temp gauge Roger?
                            Yep, runs slightly cooler all the time, but the biggest difference is when sitting in traffic or when I get home and manoeuvre the car to get it into its garage (very tight and requires a lot of shunting back and forth). In those situations the temp used to climb quite quickly to around 2/3rds when the kenlowe would kick in to "save the day". Now without the kenlowe the temp rises to just above half and stays there - even last August when sitting in a queue for 30 mins to get into a rally on the hottest day of the year. It also does not climb as much when blasting along the motorway. With it fitted the temp used to climb when blasting along at higher speeds, now it barely reaches half way. I have said before that I think many fans get fitted either as a precaution because owners are worried about potential overheating problems, which fan then causes, so the owner feels good because the fan cuts in and cools things down, or they are fitted because the engine overheats due to other causes (blocked rad & general crud in the system, faulty pump - slipping impeller - or simply incorrect ignition timing and carb setup), they react to the symptoms without investigating the cause. Just my opinion, but if the engine is properly tuned (carbs/ignition) and the cooling system operating correctly then an additional fan is unnecessary - even with modern fuels etc. There are some that have removed the original viscous fan and fitted an electric one, that is their choice and there are valid reasons including less wasted power driving a fan when it's not needed and also less noise. I do think that some general airflow over the whole engine bay is lost - but it seems to work for them. The fan on my car was fitted by the previous owner and it was only when I had the radiator out to get at the timing chains that I took notice of how much of the rad it covered.

                            Look at the attached pics with and without the fan - just look at how much of the radiator gets obscured by the fan, then draw your own conclusions.

                            Roger
                            Attached Files
                            Last edited by marshman; 2 December 2019, 10:37.
                            White TV8 BW35 no mods and now a Dolly Sprint to keep it company
                            So many cars, so little time!

                            Comment


                              #15
                              Thanks for sharing this, Roger. A touch of the "unintended consequences" effect. I substituted a Kenlowe for the VC partly to improve mpg and also as I was spooked with a couple of stories of VCs seizing and eating the rad. At the same time, I fitted a capiliary temp gauge (combined with oil press) so I didn't have a direct comparison on the old temp gauge.

                              Jonno
                              White 1976 build ("Mk2") only a few mods

                              Comment

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