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  • #16
    Re: Correct pulleys?

    Mine required absolutely no adjustment after installing the new pulleys. Hopefully some other folks will chime in on their particular install.
    Cheers,
    Marty


    TF #596
    1946 BC-12D N95258
    Former owner of:
    1946 BC-12D/N95275
    1943 L-2B/N3113S

    Comment


    • #17
      Re: Correct pulleys?

      I assume these ball bearing pulleys have the inner bore slightly wider than the width of the pulley bracket, and are therefore clamped up tight to the bracket using nylock or stiffnuts, with no cotter pin. I'm sure it's quite important that the ball bearings rotate, rather than the bolt.

      Do they come with installation instructions?

      Rob

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      • #18
        Re: Correct pulleys?

        Originally posted by M Towsley View Post
        Mine required absolutely no adjustment after installing the new pulleys. Hopefully some other folks will chime in on their particular install.
        Thank you for the info. I'm just trying to minimize the future expense of installation by having new hardware available. My current pulleys are probably mostly original and wobble about on their fasteners. I can feel the cable grooves in them, and despite recent rotation to relatively unworn spots the turnbuckles have pulled up most of the cable slack available. One of the cockpit aileron cables is still original (woven ends) so will have that looked closely. The chains and sprockets look good for their age.

        Gary
        N36007 1941 BF12-65 STC'd as BC12D-4-85

        Comment


        • #19
          Re: Correct pulleys?

          Originally posted by Robert Lees View Post
          I assume these ball bearing pulleys have the inner bore slightly wider than the width of the pulley bracket, and are therefore clamped up tight to the bracket using nylock or stiffnuts, with no cotter pin. I'm sure it's quite important that the ball bearings rotate, rather than the bolt.

          Do they come with installation instructions?

          Rob
          Don't know about instructions...just ordered them today...but my maintenance tech is sharp and will ask about the rotation aspect during the installation.

          Gary
          N36007 1941 BF12-65 STC'd as BC12D-4-85

          Comment


          • #20
            Re: Correct pulleys?

            I changed my pulleys when I redid the interior and main fuel tank. Ordered new bolts (undrilled) and nylon locking nuts. Same length as I removed. I did add a washer on each side of the pulley so as not to crush the guard as much. The bushing part of the pulley is longer so it is captured and no rotation on bolt. As Chuck said in his post,



            just lock nuts, no cotter pins.

            Mike Wood
            Montgomery, TX
            '46 BC12D
            N44085 #9885

            Comment


            • #21
              Re: Correct pulleys?

              No instructions, just a bunch of pulleys each sealed in its own plastic bag with part number and PMA info on the bag if I remember correctly. They are just upgraded pulleys, nothing too fancy but they work great.

              Difficult ones are the ones up behind your head. Between the front zip openings and the back one in the headliner you can do it, just a little difficult. When removing those I just unbolted the cotter pinned bolts by breaking the pin while unbolting.
              Cheers,
              Marty


              TF #596
              1946 BC-12D N95258
              Former owner of:
              1946 BC-12D/N95275
              1943 L-2B/N3113S

              Comment


              • #22
                Re: Correct pulleys?

                Excellent information and I'll pass this on to my mechanic. Probably time to replace mine after 74.5 years and 3000+ hrs for some, if not all. I ordered a complete set just in case those in the aft fuselage turn up in need of replacement.

                I've made PDF copies of the Owner's-Service manuals, fuselage prints, Service Bulletins, and the two parts lists available (old and newer) to share when doing maintenance. This Forum and CAP's web site are a great resource.

                Gary
                N36007 1941 BF12-65 STC'd as BC12D-4-85

                Comment


                • #23
                  Re: Correct pulleys?

                  Nylocks...no......cotter pins, yes
                  How is the transition from Vicky's being sold going? Tim
                  N29787
                  '41 BC12-65

                  Comment


                  • #24
                    Re: Correct pulleys?

                    Originally posted by astjp2 View Post
                    Nylocks...no......cotter pins, yes
                    How is the transition from Vicky's being sold going? Tim
                    She's working at Evert's on the big rigs and the parts store is just great for supporting us. I spend all I can there to keep the lights on. Her prices are reasonable and they are very helpful. I have no idea what's happening at the maintenance facility. Did she sell that? I hadn't asked or heard. When asked she did say that her Arctic Tern and my Taylorcraft used different airfoils so I left it alone.

                    Yea all potentially rotating fasteners should have pins in my world.

                    Gary
                    N36007 1941 BF12-65 STC'd as BC12D-4-85

                    Comment


                    • #25
                      Re: Correct pulleys?

                      She sold the parts house to the guy that has parts down in wolf lake and Merrill. Norm Chance I think is his name. I got an email about it a few months ago. Having parts available is a necessity in FAI. Tim
                      N29787
                      '41 BC12-65

                      Comment


                      • #26
                        Re: Correct pulleys?

                        Originally posted by astjp2 View Post
                        She sold the parts house to the guy that has parts down in wolf lake and Merrill. Norm Chance I think is his name. I got an email about it a few months ago. Having parts available is a necessity in FAI. Tim
                        Well that explains the visible changes...thanks Tim. I'll ask Steve Conatser at Chena Marina that rebuilds Cubs and fixes my stuff about the parts business. All I know is when it's AOG they have or can get the parts...same for Stoddard's in Anchorage. Bachner's Aircraft in Fairbanks did the same before old Phillips Field was covered by a freeway. Ann Bachner used to sell one part and then buy two just like it for next time. Husband Jess grumbled but kept it going until health caught up and the runway disappeared. They could fix anything including engine machining and overhaul in one shop.

                        Now to get my plane on wheels then skis and do some upgrades like the pulleys and an Atlee Dodge defroster plus winter kit. Cover the crankcase air inlet, remove the cowling cooling lip used for floats, remove the oil filter cooling fins, and lag the oil line and metal crankcase fitting. I'll probably not cover the oil sump and induction tubes (have an old kit from 40 yrs ago) as that never seemed to make much difference and I like to have pre-heat get to both.

                        Gary
                        N36007 1941 BF12-65 STC'd as BC12D-4-85

                        Comment


                        • #27
                          Re: Correct pulleys?

                          Originally posted by astjp2 View Post
                          She sold the parts house to the guy that has parts down in wolf lake and Merrill. Norm Chance I think is his name. I got an email about it a few months ago. Having parts available is a necessity in FAI. Tim
                          Ok here's the skinny...big operation it appears: http://myemail.constantcontact.com/S...id=VWKcgzSK6w8

                          Gary
                          N36007 1941 BF12-65 STC'd as BC12D-4-85

                          Comment


                          • #28
                            Re: Correct pulleys?

                            I like how Norm says that people can just drop into wolf lake...the quartering headwinds there are real nasty coming off of the Knik Glacier, they roll over the trees and makes for some real interesting landings...and bounces and floating and.....Tim
                            N29787
                            '41 BC12-65

                            Comment


                            • #29
                              Re: Correct pulleys?

                              Originally posted by astjp2 View Post
                              I like how Norm says that people can just drop into wolf lake...the quartering headwinds there are real nasty coming off of the Knik Glacier, they roll over the trees and makes for some real interesting landings...and bounces and floating and.....Tim
                              Still it's generally a fine place for aviation. Now getting worse with this winter's warmth and rain in that area. Plus winds, meth heads, crime, population growth, and all the changes inevitably coming to Alaska brought to us via State sponsored reality shows.

                              We were better off back when most folks thought of this place as either cold or mosquitoes with a few bears thrown in to chase us around. No live TV, no fresh vegetables unless locally grown, and nothing much on the store shelves before the oil Pipeline boom.

                              The old pilots talk about the era after WWII as being the best for enjoying flying and camping.

                              Gary
                              N36007 1941 BF12-65 STC'd as BC12D-4-85

                              Comment

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