Bead Rolling Alternative?
Discussion
Hi all, a quick question...
On my current project, the PAS low pressure pipework needs some rerouting to make it fit. On the rack to cooler pipe, I think shortening the rack's hard pipe would be best, but cutting the end off would mean losing the bead rolled end where the rubber hose attaches.
I don't want to trust a smooth pipe and hose clamp, but equally proper pipe beading tools are expensive and the pipe is only about 8mm ID which also limits options.
However, would flaring the end to the same diameter as the original bead achieve the same result? Or is that a terrible idea!?
Any thoughts welcome.
On my current project, the PAS low pressure pipework needs some rerouting to make it fit. On the rack to cooler pipe, I think shortening the rack's hard pipe would be best, but cutting the end off would mean losing the bead rolled end where the rubber hose attaches.
I don't want to trust a smooth pipe and hose clamp, but equally proper pipe beading tools are expensive and the pipe is only about 8mm ID which also limits options.
However, would flaring the end to the same diameter as the original bead achieve the same result? Or is that a terrible idea!?
Any thoughts welcome.
Lewis's Friend said:
227bhp said:
Unbolt it and have a new one made.
If it comes to it I may, but I'd like to do it myself if possible as a) I like to do as much as I can for myself and b) I'm cheap!How much pressure is that hose under? Possibly not much, especially given that the hose is taking it.
You DIY options are either but a bead forming tool, or just fit enough hose clamps to reassure yourself that it isn't going to be pulled off. On bigger pipes you can hand-flare them with a pair of pliers but I can't see that working on such a small pipe.
You DIY options are either but a bead forming tool, or just fit enough hose clamps to reassure yourself that it isn't going to be pulled off. On bigger pipes you can hand-flare them with a pair of pliers but I can't see that working on such a small pipe.
stevieturbo said:
It's a low pressure pipe, it doesnt need anything fancy or a bead. It should be next to no pressure at all in there at all times
But obviously as it is small diameter, dont be rough as f
k and use a jubilee/worm drive style clamp.
use the correct type
Out of interest, why is that type of clamp better than the others? Does it stop over-tightening?But obviously as it is small diameter, dont be rough as f
k and use a jubilee/worm drive style clamp.use the correct type
Lewis's Friend said:
Out of interest, why is that type of clamp better than the others? Does it stop over-tightening?
Because worm drive type hose clamps are utter .They can be marginally OK when brand new if a decent brand, but are pretty weak even then. Taking them on and off a couple of times or just leaving them to corrode for a couple of years weakens them quite quickly.
Clamps held by a proper screw are far stronger and retain their strength and reliability almost indefinitely.
Fastpedeller said:
I'd venture to say if there's a bead on the original then it's best to recreate it on the shortened pipe. If you can soft solder an olive on that will be fine (if done correctly)
You could just as easy clamp on an olive then cut the fitting off again...But in this application, not necessary one bit.
mighty kitten said:
Oyster pliers will put a bead into a 3/4 od tube . Decent plumbers merchant and some diy stores have them for around a tenner .
I did see a video about those. I think I'll buy a pair and then experiment. See if they are any good. Obviously I'm not expecting them to make a perfect bead, but if it is functional that could be quite a cheap and useful alternative. Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff