Stripped fork thread
01-14-14 | 04:09 PM
#26
Old fart
Joined: Nov 2004
Posts: 26,327
Likes: 5,238
From: Appleton WI
Bikes: Several, mostly not name brands.
What are those tools?? Thread files?? Wow-didn't know there were such things-
Are they UNIVERSAL- one file fits all?? Or my guess you need a specific file for a specific threading?? Looks like maybe you get two "threads" per file? Hmmmm- never knew there was such a thing??
Are they UNIVERSAL- one file fits all?? Or my guess you need a specific file for a specific threading?? Looks like maybe you get two "threads" per file? Hmmmm- never knew there was such a thing??
DBG? How did you use ball bearings to squeeze up some threads?? Somehow pushed them thru the grooves-into the metal-squeezed up some metal?? I'm mis-reading what you wrote I think? MAYBE you mean your repair required bigger bearings once it was done? How did you do that??-Maybe captured them in pliers-squeezed-turned the pipe with some help?? How?? I could picture pushing ball bearing thru a grove-but I don't think you mean that??
01-14-14 | 04:50 PM
#27
Thread Starter
Senior Member
Joined: Aug 2011
Posts: 570
Likes: 1
From: Columbia county, NY
WhoahH, just got back on here, thank you for all your inputs, it is striped on the upper part, French thread, forks should not be hard to find, I'' play with it while perusing Fleebay, UO8 fork , 8 inch steerer column, 24 inch total.
01-14-14 | 05:23 PM
#29
Yes, threads files. You get eight different pitches on each one; they come in both metric and SAE.
If you ride your bike with the headset loose, the upper cup will rock on the threads, eventually wearing them away in a ring where the threaded cup sits and resulting in a headset that won't stay in adjustment. By using larger-than-spec balls, dbg was able to move the place where the threaded cup engages with the steer tube to a point above where the threads were damaged, thus allowing the threaded cup to stay securely adjusted. A clever solution.
If you ride your bike with the headset loose, the upper cup will rock on the threads, eventually wearing them away in a ring where the threaded cup sits and resulting in a headset that won't stay in adjustment. By using larger-than-spec balls, dbg was able to move the place where the threaded cup engages with the steer tube to a point above where the threads were damaged, thus allowing the threaded cup to stay securely adjusted. A clever solution.
Hmmm- yeah those aren't as aggressive as the usual tap I end up using
This thread is going to be immediately helpful(unfortunately) for me.
I have a coolant leak-1997 suburban 5.7 225,000 miles-5 years ago I lazily paid a guy to replace the intake manifold gaskets.
Big mistake-he was using an electric wrench-helpful little tool-
but he didn't start the screws bolts back in by hand
Cross threaded the bolt that holds the harmonic balancer onto the crank-same story with the oil drain bolt-same story with several oil pan screws
(found out because of an oil leak-he cracked the new plastic timing chains gear cover-so I had to redo a lot of it
Safe bet my coolant leak-is from those intake manifold gaskets-and I will find LOTS of cross threaded holes-which I will have to "fix" in some fashion
I will get my hands on some of those "thread files" instead of the flat bottom tap I would usually use(because I have them )
Yeah-this will be helpful
Thanks all
