Is it safe to mount engine with stainless bolts?


Information and questions on GL1100 Goldwings (1980-1983)
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Dan Lumbye
Posts: 22
Joined: Tue Nov 24, 2015 9:36 am
Location: Denmark
Motorcycle: Honda GL1100 1981 Standard

Is it safe to mount engine with stainless bolts?

Postby Dan Lumbye » Tue Sep 13, 2016 11:36 pm



Hi

Is it safe - and would you dare - to mount the GL1100-engine with quality stainless steel bolts?

Best
Dan



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Big Blue UK
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Location: Staffordshire UK
Motorcycle: GL1800 Monarch

Re: Is it safe to mount engine with stainless bolts?

Postby Big Blue UK » Thu Sep 15, 2016 2:57 am

Dan Lumbye wrote:would you dare - to mount the GL1100-engine with quality stainless steel bolts?
Err no chance.

Although I replace many screws, nuts, and bolts with 304 and 316 stainless, I would not use them for tow hitch, engine bar, and engine mount. There is no way I would torque down a stainless bolt. If one binds/locks/breaks, you will rue the day. Use the originals, if they need replacing, replace them with genuine Honda ones.
If at first you don't succeed, hide the evidence.

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NVSB4
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Re: Is it safe to mount engine with stainless bolts?

Postby NVSB4 » Thu Sep 15, 2016 9:29 am

It's all about tensile strength.
The regular bolts have a minimum tensile strength of around 1000 MPa and stainless are 500 MPa.
That math is easy to do.
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