Originally Posted by 
Blknight.aus
				 
			ahh 12 is the number of cuts ive got in various places on both my hands in total....
 
Actually yes.. you know those spring loaded versions of the normal hose clamp that use a nut and dedicated bolt to pull the clamp closed, you normally only see them on high pressure hoses (the intenal hoses on say A Fire engine) and hydraulics... He started out with the same type of clamps as Im using (being the good flat metal spring type clips) and got a weep from his bottom hose, so replaced it with a stainless steel screw+8mm nut head jobbie (same type as the intercooler hoses on big red but slightly bigger) He asked what to do about it at this point and without even crawling out from under big red (I was dropping oils at the time) I said clean it up with some emery paper, replace the hose and use the normal supplied spring clamp. Said naff that I'll use a proper clamp then went and rummaged around at the fire vechicle servicing workshop (same building as where we were working) and came back with the spring loaded type... (which I didnt see as I had assumed hed gone to our parts bay)
 
The rest is history... 
 
It wasnt till He called me over to "have a look at this for me" after hed busted the pipe that I found that my assumptions were wrong. I had assumed that he was going to go from a spring clamp to a screw type hose clamp not a bolt up jobbie....
 
on that note I use the supplied new spring type hose clamps when fitting a new hose. IF they leak I clean up the pipe fitting with a bit of 800 grit wet and dry, give the hose a slick of gasket sealastic and let it settle for 5 minutes before putting it back together with the spring clamp if it leaks after that I butcher the old spring clamp off and open and reclose a new hoseclamp to the thing without removing the hose. My initial leak test is with a regulated supply of compressed air plumbed into the system at 110% of the systems nominal operating pressure, this way its not hot when I do it and I use distilled water with a colourant added for the test. it also serves well as a final flush of the cooling system.