Advice on fixing Stihl 075 AV

intc97 · Jun 2, 2008

I just picked up an old Stihl 075Av. The manual said it was purchased in March of 1978. It runs good. The problem is the case screws wont stay in place. I was thinking of retapping the holes for larger screws . Does anyone have any ideas on this problem? I also need a new muffler. Does anyone know of a supplier with reasonable prices?
Thanks

WES999 · Jun 2, 2008

If there is enough material you may be better off drilling and tapping for a helicoil insert. Many auto parts stores carry the helicoil thread repair kits.

computeruser · Jun 2, 2008

Are the threads worn out, or is it just that they vibrate loose? If the former, then you'll need to do it the right way: drill and use timeserts. If the latter, well, try some blue loc-tite, as these old saws are notorious for vibrating all sorts of stuff loose.

intc97 · Jun 2, 2008

The treads appear to be worn out. I guess all of that power over the years did some damage. The saw still has good compression. I still use my two 041 saws and didn't want to see another old Stihl die. Will take the time to replace the muffler and get everything tight before using.

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Advice on fixing Stihl 075 AV

intc97

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WES999

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computeruser

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intc97

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