Page 2 of 2

Posted: Mon Nov 28, 2011 9:17 pm
by ramses
I've used copper "anti seize" tape on my hybrid. It's basically thick, wide teflon tape.

You also need to make sure you apply it in the correct direction. You should wrap it in the direction that would make the fitting tend to tighten the tape, rather than catch the edge and unwrap it.

Posted: Tue Nov 29, 2011 7:18 pm
by Woody
One more quick question. How do I calculate the pressure needed to rupture burst disks? If I recall correctly, there's a constant unique to the material that is needed to calculate this. What is that constant called?

Posted: Tue Nov 29, 2011 8:36 pm
by SpudBlaster15
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse potenti. Sed dictum lacus eu nisl pretium vehicula. Ut faucibus hendrerit nisi. Integer ultricies orci eu ultrices malesuada. Fusce id mauris risus. Suspendisse finibus ligula et nisl rutrum efficitur. Vestibulum posuere erat pellentesque ornare venenatis. Integer commodo fermentum tortor in pharetra. Proin scelerisque consectetur posuere. Vestibulum molestie augue ac nibh feugiat scelerisque. Sed aliquet a nunc in mattis.

Posted: Tue Nov 29, 2011 9:49 pm
by mobile chernobyl
Woody wrote:One more quick question. How do I calculate the pressure needed to rupture burst disks? If I recall correctly, there's a constant unique to the material that is needed to calculate this. What is that constant called?
Yes there is a constant K for determining a standard for when a burst disc of a certain material should rupture. You'll need to experimentally find this constant.

The general form of this equation is well defined in this document

And K can be found experimentally by plugging in your burst pressure to the following equation:

K= (Ultimate Tensile Strength * thickness)/(Burst Pressure * Diameter)

Posted: Tue Nov 29, 2011 10:10 pm
by Woody
Thanks for the information.

Funny seems a post of mine got deleted or just disappeared.
I basically said that I found some of the pink teflon tape lying around and used it. Working pretty well. So now I'm leaking less than 1/4psi/sex at 80psi. Not bad.

Posted: Tue Nov 29, 2011 10:39 pm
by Lockednloaded
Woody wrote:Thanks for the information.

Funny seems a post of mine got deleted or just disappeared.
I basically said that I found some of the pink teflon tape lying around and used it. Working pretty well. So now I'm leaking less than 1/4psi/sex at 80psi. Not bad.
must ignore hilarious typo...
anyway, 1/4psi/second could be the difference between a combustable mix and too rich of a mix on a hybrid, so you probably need it completely air tight.

Posted: Tue Nov 29, 2011 10:40 pm
by Gun Freak
That's way too fast of a leak... You want it 100% airtight for reasons like LnL stated.

Posted: Wed Nov 30, 2011 12:47 am
by jackssmirkingrevenge
must ignore hilarious typo...
I won't.
Woody wrote:now I'm leaking less than 1/4psi/sex at 80psi. Not bad.
Image

:D :D :D

Posted: Wed Dec 07, 2011 4:26 am
by SpudBlaster15
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse potenti. Sed dictum lacus eu nisl pretium vehicula. Ut faucibus hendrerit nisi. Integer ultricies orci eu ultrices malesuada. Fusce id mauris risus. Suspendisse finibus ligula et nisl rutrum efficitur. Vestibulum posuere erat pellentesque ornare venenatis. Integer commodo fermentum tortor in pharetra. Proin scelerisque consectetur posuere. Vestibulum molestie augue ac nibh feugiat scelerisque. Sed aliquet a nunc in mattis.

Posted: Wed Dec 07, 2011 9:18 am
by velocity3x
This is what I use. It's rated to 10kpsi.
[youtube][/youtube][/youtube]

Posted: Sat Mar 10, 2012 9:04 am
by ArchaneTinker
LOL, the director of that video should have asked someone how to properly use an adjustable wrench. The movable jaw should lead the fixed one.

edit* Being an HVAC-R serviceman, leak lock is my go to sealer.I do use quite a bit of yellow gas tape when I don't feel like getting messy thoughhttp://www.highsidechem.com/leaklck.html

Posted: Sat Mar 10, 2012 10:33 am
by Petitlu
Loctite 270 ! good to 4500psi ! :D

Posted: Sat Mar 10, 2012 1:40 pm
by ramses
ArchaneTinker wrote:LOL, the director of that video should have asked someone how to properly use an adjustable wrench. The movable jaw should lead the fixed one.
Incorrect. The fixed should lead the movable jaw. Loosen a wrench and pretend to tighten a bolt, and you will see that this way exerts less torque on the movable jaw.

Posted: Tue Mar 13, 2012 6:05 pm
by ArchaneTinker
ramses wrote:Incorrect. The fixed should lead the movable jaw. Loosen a wrench and pretend to tighten a bolt, and you will see that this way exerts less torque on the movable jaw.

After some searching and re-searching, followed by trying it for myself, I've come to a conclusion... you're absolutely right. All the old timers dun taught me wrong, donkeys. I figuratively retract my previous statement, but leave it literally for the sake of context.