yachtflame Posted November 14, 2019 Share Posted November 14, 2019 I have a crack in the large fitting on the pot metal lid of a Stewart vacuum fuel tank. While at Hershey, I bought a new lid and am trying to swap the guts. All has gone fine until i tried to remove the vent needle (the furthest outboard needle). The needle moves up and down easily and rotates easily but just won’t come out. I’m wandering if some one in the group has successfully done this. This is conspiring to annoy me! Any help will be greatly appreciated. wayne Link to comment Share on other sites More sharing options...
edinmass Posted November 14, 2019 Share Posted November 14, 2019 Link to comment Share on other sites More sharing options...
edinmass Posted November 14, 2019 Share Posted November 14, 2019 Photos sent to your cell phone in higher res. Hope it helps.......... Link to comment Share on other sites More sharing options...
1912Staver Posted November 14, 2019 Share Posted November 14, 2019 It looks like the hourglass shaped part that engages with the linkage is swedged or soldered on to the shaft. What does the shaft look like from the top ? Greg in Canada Link to comment Share on other sites More sharing options...
viv w Posted November 14, 2019 Share Posted November 14, 2019 I haven't changed the valves over, so can't help on that one, but, I had a top like yours, that had cracked down the side of where the fuel line screws into the top. I made a steel sleeve that was a nice push on fit, to go on the outside of the cracked part, fitted it on with locktite, and when the fuel pipe fitting was screwed into place, the sleeve stopped the crack from opening. It is still working on the car 35 years later. Link to comment Share on other sites More sharing options...
Grimy Posted November 14, 2019 Share Posted November 14, 2019 7 minutes ago, viv w said: I haven't changed the valves over, so can't help on that one, but, I had a top like yours, that had cracked down the side of where the fuel line screws into the top. I made a steel sleeve that was a nice push on fit, to go on the outside of the cracked part, fitted it on with locktite, and when the fuel pipe fitting was screwed into place, the sleeve stopped the crack from opening. It is still working on the car 35 years later. I had that problem 20 years ago and did the same thing with the same excellent results. That crack happens from overtightening the fitting. Be sure to use crushable copper washer(s) to prevent this. Link to comment Share on other sites More sharing options...
old car fan Posted November 14, 2019 Share Posted November 14, 2019 The crack happens because of the casting ,the only copper gasket use is on a bayonet fitting,all of the post May be correct,the bayonet was the only copper gasket. Link to comment Share on other sites More sharing options...
yachtflame Posted November 14, 2019 Author Share Posted November 14, 2019 Turns out the crack was two sided and a 1/4 of the wall came off. I suppose I could epoxy it back in place and use the collar suggestions from above but I do have a nice new top.... might as well figure out how to use it. Link to comment Share on other sites More sharing options...
ron hausmann Posted November 14, 2019 Share Posted November 14, 2019 yaghtflame - 1. my first thought is I've used JB Weld successfully on Stewart tank bottoms to seal leaks. the one in the picture is JB Welded. I think it could work equally well on tops. 2. My second thought is to just buy another top "with the guts" off of ebay. Those are usually listed and either work or not. RON Link to comment Share on other sites More sharing options...
Hans1 Posted November 14, 2019 Share Posted November 14, 2019 It has been a long time but: One seals down the other seals up. The stuck one may have to be separated and removed upward. Link to comment Share on other sites More sharing options...
yachtflame Posted November 15, 2019 Author Share Posted November 15, 2019 Hans1, That’s what I’m thinking. I have seen a 3 part replacement kit with the seat, shaft and a “cap” which I guess gets soldered on. I’m thinking that the vent needle is kinda important as a vacuum is needed to make the unit work correctly. Link to comment Share on other sites More sharing options...
John_Mereness Posted November 15, 2019 Share Posted November 15, 2019 (edited) I would be tempted to use my moto-dremmel tool and do some careful grinding on the old die cast to get the shaft out and then deal with the issue on the workbench under my terms. Edited November 16, 2019 by John_Mereness (see edit history) Link to comment Share on other sites More sharing options...
yachtflame Posted November 16, 2019 Author Share Posted November 16, 2019 I thank you all for your input. That’s what makes this club really great! Link to comment Share on other sites More sharing options...
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