08:14:28pm, Thursday, May 02, 2024
Cross bolts in exhaust stacks.
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HP
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News from NTPA tech school.
Cross bolts in exhaust stacks are now required to be 1/2", and must be there. The cool inserts the turbo makers came up with don't meet the requirements for cross bolts. |
Re: Cross bolts in exhaust stacks.
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mmmk
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lets just wrap the whole vehicle in kevlar, be done with it. |
Re: Cross bolts in exhaust stacks.
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LSS Fan
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Well that’s a pretty big pain in the a$$ to change |
Re: Cross bolts in exhaust stacks.
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Registered: 04/03/2016 Posts: 772 |
Not really. |
Re: Cross bolts in exhaust stacks.
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Ya but
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The insert directly after the turbo had been getting thru tech. without any cross bolts. |
Re: Cross bolts in exhaust stacks.
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From what I was told when the first turbos with the 6” turbine wheels failed it pulled the pipe out of the v-band clamp. This is why they made the bolt on piece that attaches to the exhaust hsg. I don’t think going to 1/2” bolts will help that much |
Re: Cross bolts in exhaust stacks.
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I hate to bust your bubble but that was put into place at the end of 2019 for the 2020 season but then we all know what happened. |
Re: Cross bolts in exhaust stacks.
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Puller 7
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Why is people up in arms about cross bolt rule. I bet a couple 1/2" bolts and a drill bit are a whole lot cheaper than the fancy thingymawhopper insert. Whats the big deal? |
Re: Cross bolts in exhaust stacks.
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Registered: 04/03/2016 Posts: 772 |
Good question. |
Re: Cross bolts in exhaust stacks.
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Registered: 03/26/2008 Posts: 494 |
And I will add, the way I interpret the rule and been advised is they must be bolts and nuts with the head and nut visible on the outside--not welded in rods so the ends are flush. |
Re: Cross bolts in exhaust stacks.
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HP
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Bandit, you are correct.
Thanks for the further clarification! I know of some neat, tig welded rod as cross bolts, that technically are not legal. |
Re: Cross bolts in exhaust stacks.
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Registered: 03/17/2011 Posts: 189 |
Grade 5 1/2 bolts, head of bolt must be visible |
Re: Cross bolts in exhaust stacks.
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?
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Have their been instances the insert hasn’t been doing the job? |
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