Announcement

Collapse
No announcement yet.

Installing Fan Blade Castle Nut

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Installing Fan Blade Castle Nut

    Can't remember.... is there a washer that goes under the castle nut on the water pump shaft between that nut and the fan blades? Thanks! Mike

  • #2
    I used one so the nut won't dig into the aluminum fan. The closest washer fit I found was metric, and I had to enlarge the hole a little.

    Comment


    • #3
      YES! and it should be a stout steel washer, not one of those thin ones from China made of cheese. Without it, the nut won't stay tight, the fan could come lose and we know what can (will) happen after that.

      Comment


      • #4
        The nut gets cotter pinned............................................ ..
        Paul in CT

        Comment


        • #5
          After installing a washer, it may be necessary to grind down the back side of the castle nut to get it on far enough to install the pin.
          Bill
          http://www.brauchauto.com/
          Eastern Connecticut

          Comment


          • #6
            Thanks guys, appreciate your thoughts. Any thoughts on using a lock washer in addition to the cotter pin? Good tip about grinding down the castle nut to accommodate the washer. Mike

            Comment


            • #7
              Maybe I'm having a senior moment, but WHY would you use a lock washer if you are using a cotter pin?

              Comment


              • #8
                Originally posted by Ted Duke View Post
                Maybe I'm having a senior moment, but WHY would you use a lock washer if you are using a cotter pin?
                If the flat washer you have has a too large outer diameter, you could use a smaller diameter lock washer and the cotter pin. I would never depend on a washer of any kind or style on that nut.
                You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!

                Comment


                • #9
                  Originally posted by Ted Duke View Post
                  Maybe I'm having a senior moment, but WHY would you use a lock washer if you are using a cotter pin?
                  Insurance.
                  Many thanks to all who took time to reply!

                  Comment


                  • #10
                    I would never use a lock washer on a two bladed aluminum fan as it will just eat into the softer aluminum.
                    Dave

                    Comment


                    • #11
                      Originally posted by Dave in MD View Post
                      I would never use a lock washer on a two bladed aluminum fan as it will just eat into the softer aluminum.
                      Dave
                      That's what i was thinking also

                      link to the installation instructions,,no mention of a flat washer
                      http://www.snydersantiqueauto.com/Co...UMFAN-5229.pdf
                      3 ~ Tudor's
                      Henry Ford said
                      "It's all nuts and bolts"


                      Mitch's Auto Service ctr

                      Comment

                      Related Topics

                      Collapse

                      • wrndln
                        This is a fine point question
                        by wrndln
                        I am trying to determine what style castellated nut should be used on the fan/waterpump. The fan is an aluminum type. I am attaching a picture of the nut that came with the fan. The nut is unlike most castellated nuts used on model A's. I suspect the castellated should be the typical nut, not the one that came with the fan. If anyone knows what style nut is used on the fan/waterpump.
                        ...
                        11-23-2019, 12:56 AM
                      • cairo16
                        Radiator Fan
                        by cairo16
                        My car is a 1930 coupe, my radiator fan was replaced by previous owner. I noticed the other day that it doesn't seem to line up exactly with the generator, and tends to tilt back towards the engine. It wobbles back and forth when i touch it. Is there a way of tightening this up or does it have to be replaced? I should also probably mention previous owner also replaced water pump at the same time with...
                        02-08-2019, 10:12 PM
                      • Mickey
                        New fan blade, what do I do?
                        by Mickey
                        I'm putting a new two blade aluminum fan on a new leakless water pump. Problem is when I tighten the nut down to put in the cotter pin the inside of the blade hub rubs on the outside of the water pump front hub. I tried shimming the pump shaft to push the blade further out but that didn't work. By the time the hubs didn't rub the nut didn't come close to allowing the cotter pin in. Any suggestion...
                        05-31-2019, 02:21 PM
                      • carolinamudwalker
                        Rear axel, one more time
                        by carolinamudwalker
                        Ok Mitch, and everybody, Photo on far left is without using original washer but the ARP nut has the same diameter as the washer. Also there is room for cotter pin. Photo on far right is using the washer but no room for cotter pin. Both ways are using all the threads of the ARP nut. Photo #3 shows the rear puller that caused all my grief on the left. On the right is a work of art made by Mitchel...
                        You do not have permission to view this gallery.
                        This gallery has 4 photos.
                        11-22-2017, 10:29 AM
                      • Chevmn56
                        What is this Nut
                        by Chevmn56
                        Happy New Year VFF !!!!! I am trying to figure out if my engine has been gone through before......I took off the valve cover (if anyone wants a Winfield valve cover PM me) to reseal and inspect because of leaks. I noticed a pretty big nut behind the valves in the middle of the motor on the bottom of the valley this nut is a Ny-Lock....pretty sure they didnt have this back in the day. What is this...
                        01-01-2018, 11:25 AM
                      • Beauford
                        Spring Perch
                        by Beauford
                        Never really thought about my front spring perches too much when building my car until I saw a thread here on them. I know they were in good shape in the beginning as theres not much to them. I went under and noticed one of the special castle nuts was really bad..like some of the nut was missing on the backside. So ordered two new special nuts. While I wait I decided I should remove the nut. The nut...
                        09-22-2018, 02:14 PM
                      • Apple Green Wheels Rule
                        OK technical question time about...........
                        by Apple Green Wheels Rule
                        the water pump packing nut on a leakless sealed WP.

                        It says in the instructions that, the packing nut is kept loose and only tighten in case of emergency. If that is so, what keeps the nut from tightening on it's own while the shaft is rotating?
                        03-05-2018, 04:58 PM
                      • Jedmundcars
                        Engine Cooling Fan
                        by Jedmundcars
                        Hi Guys. Quick question. I'm installing a new water pump on Clarabelle. She has a 4 blade fan on her that looks exactly like the pics I see of the later Model B, etc. I thought since I had to pull the radiator I might as well put the 2 blade fan back on. I read where after a certain year (33-34) they replaced that 2 blade with this 4 blade when they needed to be replaced. I guess because of breaking...
                        08-09-2019, 06:25 PM
                      • carolinamudwalker
                        Rear axle threads revisited
                        by carolinamudwalker
                        As you may remember, I buggered up the threads on my rear axles ( yes both of them, I'm stubborn) using the cheap puller sold by all the venders. For those that suggested putting the nut back on, that wont work with this puller as the axle goes up inside the puller. I have chased the threads and now new castellated nuts will go on but I can feel about .001 inch looseness when I rock the nut back...
                        You do not have permission to view this gallery.
                        This gallery has 1 photos.
                        11-09-2017, 10:34 AM
                      • Chevmn56
                        Splash Pan Mounting
                        by Chevmn56
                        Putting on my new powder coated splash pans with period correct bolts from brattons. In the judging standard books it says that in the later years they switch from cotter pin to lock washer.......i put the lock washer on the nut side (square) but it doesnt look quit right. the washer doesnt go on the head side by chance?
                        04-30-2018, 03:09 PM
                      Working...
                      X