I have a Snyder's leakless water pump-the sealed unit. Long story short-I boogered up the threads at the tip of the shaft. I wanted to remove the fan blade & pulley(2 bladed alum) as I needed to grind down the end of the housing a little more for clearance reasons. I used the fan removal tool. When i smacked it with the hammer it wasn't square and messed up the threads on the very end of the shaft. The castle nut will start, but i don't want to force it and strip the rest of the threads. What size die do i need to clean up the threads on the end of the shaft?
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Last edited by smittykid; 09-21-2017, 06:58 AM. -
7/16 x 20, but I would use a thread reformer to push the threads back into place, rather than a die that cuts away your good metal. -
What Tom said
I have this universal / adjustable thread cutter that i would use on things like this.. The tool gets installed on the good threads and then you walk it off gently which will clean up the damagaed top portion...
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This gallery has 2 photos.3~ 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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that's cool, Mitch, never saw that before. where do you get it?Comment
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Get a grade 8 nut, cut it to, put it around the good threads, install a 6 point socket and back it off. If the socket doesn't fit my son used vice grips on a rear axle and saved the axle :-)
Yes Mitch in half like two crescent moons! I should have been more clear, l know what I meant, hard for me to explain :-(Comment
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Good tip, and I'll give it a try on a bad water pump shaft I have.Originally posted by Big hammer View Post
Use some oil on the threads, and clamp on a curved jaw Vice Grip.Comment
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NES NES1A Universal External Thread Repair tool.
You can find it on Amazon: https://www.amazon.com/NES1A-Univers.../dp/B00D8WJ1FCLast edited by Boston Bruce; 09-21-2017, 01:04 PM.Comment
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I have one of these old Blue Point thread chasers.
bpastc1.jpgComment
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Don Turley sells this tool. I bought one from him years ago and used it to save the threads on a rear axle. http://www.donturley.com
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I bought a thread file from NAPA-around $20 w/tax. After working the thread on the shaft with the thread file and a small needle file I got her squared away. I was still having trouble starting the castle nut that came with the water pump. I must have boogered up the nut, too. I took an old castle nut and it started just fine and life is good. The new castle nut has found a home in the trash can. Thanks guys for all your help!Comment
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You could run a tap down the front of the nut to clean the threads up. Always save nuts and bolts, "may need that someday".Originally posted by smittykid View PostComment
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It's been common practice for decades, for folks to chase threads in engines and other places during restoration or maintenance. More often than not this is done using a general purpose tap and die set. This IS NOT the best practice! It doesn't matter if you are using Snap-on or Harbor Freight tools, the result is the unnecessary removal of material from both male and female threads.
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This gallery has 2 photos.10-15-2019, 02:40 PM -
the threads on my spare driveshaft are a little messy due to mechanics over the years whacking it to release pinion. Just want to clean them up. Thanks04-02-2019, 06:51 PM -
The nut fought the entire way off this perch. Is there a way to save these threads?You do not have permission to view this gallery.
This gallery has 1 photos.11-02-2020, 08:51 PM -
Stripped Rear Axle Threads!
the last post has more related thread links.
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...You do not have permission to view this gallery.
This gallery has 1 photos.11-09-2017, 10:34 AM -
So all the switching, torquing and pulling hubs these threads decided to give. With the washer on the nut won't bite. Washer off she bites to 100lbs. I have a chaser ordered and some of those ARP nuts. I am hoping the chaser will work as the threads are still there. I'm not set up to redo a whole rear end as I'm not replacing one axle and not go through the whole thing.01-01-2018, 07:25 PM
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Are the head studs and nuts on a Model A 7/16 x 20? Even though I've lubed them and run all the nuts off and on the studs several times, and cleaned the threads on the studs with a wire brush in my drill, while the head is off, the nuts are still tight going on and off. I thought about chasing the threads on both with a tap and die but my 7/16 x 20 tap and die didn't seem to be the correct one. I...10-09-2019, 06:25 PM -
Can someone tell me what size and thread these are I am striking out.
Distributor cam hold down screw.
Conduit that threads into the distributor.04-05-2018, 07:28 AM -
When attempting to remove the nut on one side of the axle on one of my vehicles, the nut just spins indicating the threads are stripped. I think I may be able to insert a screwdriver between the nut and the hub and get it off - I hope. My question is: Is there a good repair for stripped axle threads or is the axle a gonner? I am assuming the axle is otherwise in good condition, but I can't tell...10-17-2019, 05:19 PM -
I have stripped threads on the head in my car it is the distributor hold down screw I did not think i overtightened it but it will pull when you tighten the jam nut. I know about heli-coil but do not like that idea as much as using a thread-sert, so it will be steel and epoxied in place looks like a good solution have not checked yet but I believe the thread is 3/8". Ideas and tips appreciated....09-24-2017, 08:24 AM
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Now I have done it. Pulled rear drums with the cheapo puller and buggered up the axel threads. I have chased the threads and the nut goes back on but is loose. I am worried that the nut will not hold the 120 pounds of torque. I will order new nuts, but I am wondering if I could use something like lock tight red to be safe. Planning on driving to Branson from coast of N.C. 2200 miles round trip....11-01-2017, 08:41 AM
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