DIY torch repairs?

[Petal]

My two beloved Nimrod micro torches are not working. One is jammed and won't ignite at all and the other will ignite occasionally, but won't stay lit for long. They originate from the US and I haven't yet found anyone who can fix them for me. Mine looks very similar to this one https://cpc.farnell.com/iroda/pt-220...-pt/dp/SD01422. The original UK distributor went bust a long time ago, so no luck there. I don't want to buy another one, as I plan to get a Smiths Torch in future, but would just like to try and fix these, if I can.

Any useful tips on what I can do to try and disasemble and make these things work, would be very much appreciated.

At a push, if I can't repair them, which would be better; a Proxxon microflame torch from Cookies https://www.cooksongold.com/Jeweller...ode-999-7703or the Blazer torch from Walshes https://www.hswalsh.com/product/blaz...ng-torch-tt385. I am only using them for very small soldering jobs.

Thanks