Drain Bolt Dilema

Related:
Create New Tag

8/20/2018 8:43 PM
Edited Date/Time: 8/21/2018 12:19 PM

As you can see in this pic the drain hole was helicoiled at a bad angle. Its also american threads. Any suggestions other than taking it to a local machinist?

Your expert advice and experience is appreciated. Trying to save this beat 96' CR125.
-Thanks
Bob

Photo

|

8/21/2018 3:53 AM

My advice is to weld it up and remachine the hole

|

8/21/2018 4:01 AM

Dilemna

|

8/21/2018 4:49 AM

i had this problem, unfortunately i had to split the cases and get a bose welded onto it and tapped a new thread onto it and put it back together

|

8/21/2018 5:12 AM

Take it down to Dix Machine in Visalia they will be able to fix it right up.

|

8/21/2018 8:35 AM
Edited Date/Time: 8/21/2018 8:39 AM

I used similar kit to this one on my KTM with out splitting cases. Just tap bigger thread and use new bigger oil plug from the kit.
https://www.ebay.com/itm/Oil-Drain-Plug-Sump-Bolt-Thread-Repair-Kit-24pc-Set-M13-M20-Tap-/262857290387?_ul=FI

|

8/21/2018 12:24 PM

Thanks for the help guys (spelling too).

Dix is on my way home from work! I didn't know that shop was there. Perfect!

|

8/21/2018 4:19 PM
Edited Date/Time: 8/21/2018 4:19 PM

One option is “Timeserts”.
“Thickserts” if more material removal is required to repair.

Even if it isn’t the soloution for this issue - handy to know about if you have an interest in VMX. Saved a welding job on my ‘81 RM125 fork leg. A perfect soloution. (Better than new - the axle screws into steel now!)

|

8/23/2018 7:17 AM

One option, not the most desirable option. File the surface perpendicular to the crooked hole, in other words make the the surface flat relative to the bolt,

|

www.alljackedupinc.com home of the Switch Hauler®

9/18/2018 8:26 AM

garagedog wrote:

Thanks for the help guys (spelling too).

Dix is on my way home from work! I didn't know that shop was there. Perfect!

Were they able to help you?

|

9/18/2018 11:36 AM

skypig wrote:

One option is “Timeserts”.
“Thickserts” if more material removal is required to repair.

Even if it isn’t the soloution for ...more

I have a 97 yz125 where someone tapped a bolt hole for the fork guard with a Standard tap, and also a hole for the swingarm guard with a standard tap. I suppose this could fix this for me??

|

9/18/2018 4:35 PM

Mossy wrote:

I have a 97 yz125 where someone tapped a bolt hole for the fork guard with a Standard tap, and also a hole for the swingarm ...more

I think it could.

I’d try a (cheaper) normal helicoil first.
Depending on how oversized the hole is - Helicoil, Timesert, Thicksert. In that order.
You can probably find the drill size required for each option, and compare that to the situation.

|