Can I use thread lock for chainsaw muffler?

chuck t · Apr 23, 2016

My husky 142 is a few years old and I can't find original muffler. I had an aftermarket muffler , but the assembly is different and the bolts came out. Can I use thread locker in this?

Tramway Guy · Apr 23, 2016

If it is 'hot' where you intend to use it, the loctite will break
down.

Steve@Advance · Apr 23, 2016

No, thread lock will not hold with heat. Possibly what you can do is screw in some studs, bottom them in the
hole, then use self locking nuts, (not Nylock).

If you can't find self locking nuts, take a regular nut, screw a bolt half way through the nut, squeeze the
other side of the nut enough to partially collapse the threads. Keep trying and squeezing until the nut just
binds on the bolt, that will give it some resistance to vibrating loose. You can also double nut it if you
can get a thin enough wrench to hold the back nut.

Russ from MN · Apr 23, 2016

Some chainsaw muffler bolts had a sheet metal washer that you bent some tabs up against the flats on the bolt head.

Ted in NE-OH · Apr 23, 2016

Locktite makes a high temp product. Check your local auto parts store

guido · Apr 23, 2016

Hello chuck t,

Yes, 242 will do just fine,

GUIDO.

jpapier · Apr 24, 2016

I have used metal pipe strapping, drill out the holes the bolts go through and leave enough on the ends to bend up to secure the bolt heads. Or drill the heads and wire them.

Can I use thread lock for chainsaw muffler?

chuck t

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Tramway Guy

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Steve@Advance

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Russ from MN

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Ted in NE-OH

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guido

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jpapier

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