Chainsaw Repair

Chain - Grinders - Filing - Wood Milling - Tools - Welding - Machinist - Mowers - Tillers => Tool Shed => Topic started by: Cut4fun . on March 12, 2015, 12:50:32 pm

Title: Fixing threads
Post by: Cut4fun . on March 12, 2015, 12:50:32 pm
Some ideas I came across today. Fixing buggered threads.

Anyone every used stuff like this?  Thread file for fixing threads.


PRODUCT OVERVIEW
Model # 33024
Internet # 205215048

The Nicholson 4-Piece File set contains an assortment of files that will help restore damaged threads to a useful state. Restoring threads on damaged and worn bolts and pipes can help lengthen the life of each. Files come in a canvas pouch for easy storage.

    Used to restore damaged or worn external threads on bolts, pipes, etc.
    Each thread restoring file will work with 8 different thread sizes
    Type 2 red cap: ex. fine/ex. coarse bolt; 9, 1, 12, 16, 2, 27, 28, 32 tpi
    Type 7 green cap: regular pipe; 8, 1, 11 1/2, 14, 16, 18, 24, 27 tpi
    Type 8 blue cap: metric bolt; 0.8, 1. 1.25, 1.5, 1.75, 2, 2.5, 3 mm
    Type 1 black cap: regular bolt; 11, 12, 13, 14, 16, 18, 2, 24 tpi

http://www.homedepot.com/p/Nicholson-Thread-Restoring-File-Set-with-Pouch-4-Piece-33024/205215048
Title: Re: Fixing threads
Post by: Cut4fun . on March 12, 2015, 12:52:19 pm
Bikemaster 8 in 1 THREAD REPAIR FILE 15-2193

• Restores both right and left handed external threads easily
• Features durable, fast cutting teeth
• Removable vinyl handle
• Save time and money repairing

https://youtu.be/_UtfMOhK-Eo
Title: Re: Fixing threads
Post by: aclarke on March 12, 2015, 01:45:55 pm
Looks a little crude in the video. I'd run it through a die instead...
Title: Re: Fixing threads
Post by: Cut4fun . on March 12, 2015, 01:57:30 pm
Looks a little crude in the video. I'd run it through a die instead...

Thats my thoughts too.

What about left handed threads.

Also pogo was talking about a file type string thing that his NAPA dealer used to straighten out the threads on the end of a crankshaft. Any idea?
Title: Re: Fixing threads
Post by: aclarke on March 12, 2015, 03:37:59 pm
Kev, left hand dies are available and not that pricey.  Adam Artzer bought one recently for a 3120 that the crankshaft shop booger'd the threads on somehow. Two piece clamp together dies work well when the lead-in  threads are trashed.  You clamp the die on the inner thread area and back off to clean up... 
Title: Re: Fixing threads
Post by: aclarke on March 12, 2015, 03:49:38 pm
Split die thread chaser is the proper name I believe.
Title: Re: Fixing threads
Post by: Cut4fun . on March 12, 2015, 05:52:40 pm
Thanks for info Adam.


Chipsnflyin I think found that other stuff. 

Mitchell Abrasives

http://www.amazon.com/s/ref=sr_nr_n_0?fst=as%3Aoff&rh=n%3A16310091%2Cn%3A401507011%2Ck%3Amitchell+abrasives&keywords=mitchell+abrasives&ie=UTF8&qid=1426192564&rnid=16310161
Title: Re: Fixing threads
Post by: jmester on March 12, 2015, 07:05:14 pm
I have used thread files before. I think they work good. Seems a little bit of a cheaper route to go then buying dies. I agree with Adam a die is going to give a much better result.
Title: Re: Fixing threads
Post by: 660magnum on March 12, 2015, 07:07:32 pm
I've used triangular files in the past.
Title: Re: Fixing threads
Post by: farmboy on March 12, 2015, 08:48:17 pm
I used a thread file before i got split one and hex die set.  File works pretty good if thats all you have.
Shep