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
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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. -
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
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The nut gets cotter pinned............................................ ..
Paul in CTComment
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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.Comment
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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. MikeComment
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Maybe I'm having a senior moment, but WHY would you use a lock washer if you are using a cotter pin?Life is what happens on the way to what you planned.png "tongue")
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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.Originally posted by Ted Duke View PostYou wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!Comment
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I would never use a lock washer on a two bladed aluminum fan as it will just eat into the softer aluminum.
DaveComment
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That's what i was thinking alsoOriginally posted by Dave in MD View Post
link to the installation instructions,,no mention of a flat washer
http://www.snydersantiqueauto.com/Co...UMFAN-5229.pdf3~ Tudor's & 1~ Coupe
Henry Ford said,
"It's all nuts and bolts"
"Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible."
Mitch's Auto Service ctrComment
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Is there a toqrue spec for the fan blade nut or how tight should it be ?03-16-2022, 07:35 PM -
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 -
Do you need a flat washer under the castellated nut when you install an aluminum fan? Does a washer interfere with getting the cotter pin installed?03-25-2023, 02:36 PM -
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 -
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 -
I bought a leakless water pump a few years ago. I have no idea if it used an original casing or it is a new one. I also bought an aluminum fan about a year and a half ago from Bert's, that normally carry good quality parts, since many people have said original steel fans can break and cause damage to the radiator, hood, whatever. Well today I tried to install the water pump and repro fan. I tightened...06-13-2020, 05:24 PM
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From this image, can you tell me if I am still running the original steel blade or the newer safer aluminum option. Thx.You do not have permission to view this gallery.
This gallery has 1 photos.04-11-2021, 12:19 PM -
PO boogered up the castle nut that holds the right side steering arm in place and broke off most of the castles can someone confirm the correct size? My research says 3/4-16 . Also were they zinc or cad plated? All I’m seeing are zinc at the vendors but cannot verify fitment. Thanks in advance.04-30-2023, 10:29 PM -
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 -
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
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