Grumpyman Posted December 16, 2021 Share Posted December 16, 2021 The gas valve is sticking on the filler inlet to the tank and I was wondering weather it would be OK to spray it with WD40 OR WOULD CAUSE CONTAMINATION. What would be a alternative. Any suggestions much welcome. Thanks in anticipation. Link to comment Share on other sites More sharing options...
Derek Uzzell Posted December 16, 2021 Share Posted December 16, 2021 As I understand your enquiry, on the image attached below it will be the arrowed "on/off outlet valve" that is stickling. You might try this WD-40 product (rather than the time-honoured oily stuff) https://www.toolstation.com/wd-40-specialist-dry-ptfe/p50617?utm_medium=feed The PTFE stuff rapidly dries after being sprayed, so is probably less likely to 'contaminate'. On the other hand, if the valve is proving REALLY difficult to turn, you might need a more penetrative product. I'd use the PTFE stuff (because I've got some!) to begin with, but actually I doubt that ordinary oily WD-40 would cause contamination problems. If pressurised LPG isn't leaking out through the outlet valve, it's hard to imagine how WD-40 (or any other lubricant) could find its way into the tank through the valve. Link to comment Share on other sites More sharing options...
Hans Posted December 16, 2021 Share Posted December 16, 2021 Use Silicone Fat. And open the Valve if possible. Renew O-rings if any in the Valve And smear them whit it. Or put a new valve on it after exam. Link to comment Share on other sites More sharing options...
Grumpyman Posted December 16, 2021 Author Share Posted December 16, 2021 Thanks for your reply perhaps I did'nt make myself quite clear. The valve that is actually sticking is where you connect the hose from the pump hose so not shutting off when disconnecting the pump hose. Link to comment Share on other sites More sharing options...
rayc Posted December 16, 2021 Share Posted December 16, 2021 A replacement valve is not too expensive and easy to replace in the filler housing https://www.caravanningequipment.co.uk/onlinestore/prod_5265713-GasIt-LPG-Filler-Angled-In-Body-Black-Version-GTFILLBXKGT623.html Link to comment Share on other sites More sharing options...
Derek Uzzell Posted December 16, 2021 Share Posted December 16, 2021 Grumpyman - 2021-12-16 2:37 PM Thanks for your reply perhaps I did'nt make myself quite clear... . No, my fault for not reading your posting more carefully. This 2019 MotorHomeFun thread may be of interest https://www.motorhomefun.co.uk/forum/threads/fault-and-cure-lpg-fill-point-eg-auto-gas-gaslow.207367/ and the 'anti-dirt' filter is shown here https://www.gasit.co.uk/gas-it-uk-fillpoint-bayonet-and-direct-gas-in-filters-d-g-i.html If what was mentioned in the MHFun thread is happening in your case - that dirt is preventing the non-return valve in the filling-point from completely sealing - lubrication probably won't be effective. You'd need to open the valve so that the dirt could be displaced from the valve's seal, and the simplest way to do that would be to pump some more gas through the valve and into the tank. (I'm guessing this might take several 'goes' if the dirt proved reluctant to be forced from the valve's seal). It's also suggested in the MHFun thread that poking something (eg. a screwdriver) into the filling-point to open the valve should (might?) encourage the valve to seal properly. I'm not familiar with LPG filling-points, but I assume that they cannot be dismantled. If that's so and your motorhome's valve just won't seal, then (as rayc has advised) replacing the filling-point would be the next step. Link to comment Share on other sites More sharing options...
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