Well, in the last few days, I've sorted out a good few of my Tilleys, Bialaddins and Vapaluxes and they're now 'runners' again. Whilst not exactly boring, this became somewhat repetitive so I thought I'd try something a little more challenging - like a Veritas 350 for instance... The one I picked off the shelf has a problem with the check valve which appears to be stuck shut so that the tank can't be pressurised. A quick squint down the pump tube revealed that the valve needs a 'key' which I assume is like the kind used to remove a stove-type check valve. Is this correct? If so, where can I obtain one of these tools? I understand these valves can be a bugger to get out - any tips, anyone?
DW-40 try DW-40 or some such penetrating oil first..i had good luck on a Primus that came free after a week or so of just adding oil and letting it set overnite and pumping-- and then again the next day and so on untill it worked-----on the other hand i tryed the same trick on a old coleman lamp and ended up busting the slot on the valve with a screwdriver when after a month the oil trick did'nt work..
Thanks Dave, I'll try that. A few night's soaking whilst I locate an old screwdriver to grind down to fit the slot can't hurt. Maybe the valve will unseize itself without needing to be removed... I found a similar thread hereabouts which recommended filling the tank (fount) with very hot water. I'll give that a try, too... BTW, we call it WD40 over here - I assume it's the same stuff. WD stands for 'water dispersant' - it can be sprayed on wet engines to get the moisture off the HT side of things...
... very interesting. I see my old man's 96 got a mention in there! Nothing unusual in itself of course, I had intended bringing it to the Gathering to give it its first use in probably 70 years. However it was still sitting there in it's tin, waiting for me, when I got back from Newark...
David if you haven't had to remove the non return valve up to now you are doing well. Yes the valve in a Veritas uses the same tool to get that NRV out. There is only 2 types of tools used to get these valves out . 1 is a screwdriver and the other is the special tool where the valve has 2 flat sides. You can make a tool from a bolt by cutting a slot 4 mm wide in the end of it. But keep the slot as tight a fit as you can on the valve. Once you get the valve out don't use a screw driver to seperate the valve. Use pliers to hold the tube section. Visit the Handi forum for instructions on this. Link on this site.
I've freed a check valve by shaving a piece of dowel so it just slides freely in the tube. Put a little engine oil in - so there's about 10mm in the bottom of the tube. Then insert the dowel until it meets the oil and - then give a _little_ tap on the end of the dowel with a hammer. The hydraulic shock should free the valve. Don't tap too hard otherwise you might bulge the tube! Jim Ford
I forgot to say the other day. If the valve is stuck closed and you can't get air though it You can put a piece of wire down the tube and into the hole of the NRV. push on it and it will free up. But I think you will find it won't seal after because it will leave small particals of cork behind on the sealing surface
