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Manifold torque spec VAC


 
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PostPosted: Wed May 12, 2021 4:35 pm    Post subject: Manifold torque spec VAC Reply to specific post Reply with quote

So the I-T manual I have does not list a torque spec. Since the studs appear to be 3/8 I am thinking around 45FT/LBS. Is that around the right torque??
 
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Tubacase47
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PostPosted: Wed May 12, 2021 5:27 pm    Post subject: Re: Manifold torque spec VAC Reply to specific post Reply with quote

Rich, according to the chart for torque values on the left side of this website, it depends on the composition of the bolts. It can vary from 17 ft lbs for brass up to 54 ft lbs for high carbon case hardened steel.
 
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PostPosted: Wed May 12, 2021 5:59 pm    Post subject: Re: Manifold torque spec VAC Reply to specific post Reply with quote

Well the nuts on it are steel not brass. I do know the ones I started to take loss for this VAC I am trying to get to run longer then a few seconds where not all that hard to break free so I may have found where the problem is I hope. I plan to replace this manifold with a spare I have on hand
 
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Joe (Wa)
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PostPosted: Wed May 12, 2021 8:23 pm    Post subject: Re: Manifold torque spec VAC Reply to specific post Reply with quote

Studs are ferrous metal, (3/8 x 1-3/4), Nuts are brass (3/8 - 16 tpi)
Torque specs for VA series tractors

Joe



 
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PostPosted: Wed May 12, 2021 8:28 pm    Post subject: Re: Manifold torque spec VAC Reply to specific post Reply with quote

The nuts on this one are not brass there steel
 
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Joe (Wa)
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PostPosted: Thu May 13, 2021 8:28 am    Post subject: Re: Manifold torque spec VAC Reply to specific post Reply with quote

.

 
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Joe (Wa)
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PostPosted: Thu May 13, 2021 8:38 am    Post subject: Re: Manifold torque spec VAC Reply to specific post Reply with quote

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PostPosted: Thu May 13, 2021 8:56 am    Post subject: Re: Manifold torque spec VAC Reply to specific post Reply with quote

I just did a magnet test on the nuts and they are not steel since the magnet would not stick to them so I guess there brass even though they don't look like brass
 
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PostPosted: Thu May 13, 2021 11:30 am    Post subject: Re: Manifold torque spec VAC Reply to specific post Reply with quote

I just put the spare manifold on and torqued it down to right around 30FT/LBS. Hope it will run with this manifold or it was a waste of time and $$
 
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