Doubles band torque specs?

[HenrikBP]

I've searched and seen various methods for doubles assembly. How much to tighten the bands seems to vary from "snug" to "guten-tight" with mention of using a torque wrench.

The reasons given for tightening the bands down tight seems to make sense to me; don't want the tanks to slip out of alignment and put stress on the manifold.

It seems that the reason for not going too tight is to avoid distorting the bands. Can anyone clarify?

But does anyone have actual torque specs for the bands?

I would think that tanks expand a bit when full as compared to empty. Is it enough that the bands should be tightened with the tanks empty?

Thanks,

Henrik

 

[Michael_Lambert]

Which bands do you have, ideally they are all done the same.

Here is a instructional manual for Halycon bands

 

[matt t.]

When tightening mine I keep an eye on the center section. When it starts to dimple around the bolt head/nut I back off a little. They only need to be snug. When you start to fill they will usually "creak" a little from the expansion of the tanks. This is normal.

 

[HenrikBP]

Which bands do you have, ideally they are all done the same.

I have Highland bands.

Thanks for the Halcyon link. Halcyon says pretty much the same as Matt mentions: tight but no distortion of the bands.

Thanks guys,

Henrik