Stihl 009. 010 01 rear bar guide loose

[Chuck Spitler]

I am looking for some guidance on a problem with a 011AV saw. There is a small steel guide that serves as the rear bar guide/support...since these saws only have one bar stud. It is art held on to the magnesium crankcase half with a small 4 or 5 mm torx head screw. The steel guide is threaded and the threads are fine there...the magnesium crankcase threads are stored and not holding.

Has anyone had to repair this issue, if so what did you do and how did you do it. Has anyone had to repair a similar situation. it a very small diameter screw not sure if they make helicoils in this small of size? JB weld an option? Not sure how well an epoxy would hold Any and all insights welcome

Thanks
Chuck

 

[stihltech]

I believe it is 4 or 5 mm. Helicoil is my method.
A picture will help.
I looked thru the parts manuals and did not see a screw there. Only a cast in boss for the back of the bar.

 

[Chuck Spitler]

I believe it is 4 or 5 mm. Helicoil is my method.
A picture will help.
I looked thru the parts manuals and did not see a screw there. Only a cast in boss for the back of the bar.

Yes the guide itself is not shown separately in the IPL I have. It’s a small torx head screw that holds the guide in place and it is a 4 mm or 5mm. The guide itself is tapped so the screw threads into the guide as well as the magnesium housing.
I will have to put my caliper on it to measure the diameter and my thread comb to the pitch as well, so I get the correct helicoil set..drill bit, threading tap etc.
Do you have any idea how deep the existing hole is… and if I can or should I go how much deeper to safely drill for the insert?

 

[Chuck Spitler]

Yes the guide itself is not shown separately in the IPL I have. It’s a small torx head screw that holds the guide in place and it is a 4 mm or 5mm. The guide itself is tapped so the screw threads into the guide as well as the magnesium housing.
I will have to put my caliper on it to measure the diameter and my thread comb to the pitch as well, so I get the correct helicoil set..drill bit, threading tap etc.
Do you have any idea how deep the existing hole is… and if I can or should I go how much deeper to safely drill for the insert?

I am currently on vacation and will no be able to take any photos for a week