tigers2007 Posted November 12, 2019 Report Share Posted November 12, 2019 After perusing some threads here it’s my understanding that my bladder uses the F391-18 (1/8” NPT). Is it possible to replace the O-Ring in the valve itself? If so, what is the part number? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Marauder Posted November 12, 2019 Report Share Posted November 12, 2019 After perusing some threads here it’s my understanding that my bladder uses the F391-18 (1/8” NPT). Is it possible to replace the O-Ring in the valve itself? If so, what is the part number? Sent from my iPhone using Tapatalk I am not sure it is worth the trouble. I just replaced mine. BTW - I don’t recall that part number. Sent from my iPhone using Tapatalk Pro Quote Link to comment Share on other sites More sharing options...
tigers2007 Posted November 12, 2019 Author Report Share Posted November 12, 2019 Looks like its a SAF-AIR SA18. McFarlane Aviation wants $23.93/ea and it appears they sell a "seal kit" (SA18K) for $2.90. This blows as I've been trying to fly my GD plane for the last couple weeks and today has been the only VFR day that it has been possible. When I was sampling the fuel the damn thing started pissing fuel like there was no drain. I played with it so it just slowly drops. I'm about to make the 30-min trek back to the hangar with three more 5-gallon jugs and I bought a brass 1/8 NPT plug too. Spruce has the parts but they want one arm and one leg for shipping. Edit: I ended up just ordering everything from the Spruce as I needed a couple cases of oil and some ez fuel lube anyways... Quote Link to comment Share on other sites More sharing options...
tigers2007 Posted November 12, 2019 Author Report Share Posted November 12, 2019 Well it looks like these Saf-Air SA18’s are totally rebuildable. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
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