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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
canuckxxxx's Single carb manifold build
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<blockquote data-quote="canuckxxxx" data-source="post: 126391" data-attributes="member: 2409"><p>Things aren't going so well. Put the whole thing together and have a major air leak. Won't idle but revs up then almost dies then revs up again. Sprayed starting ether and engine reved up. Did any of you guys have trouble with air leaks.</p><p></p><p>So I'm looking at all the junctions; </p><p></p><p>for the plenum to plate junction I was using the existing gasket which I thought was good but maybe not so I made a new gasket. Still air leak.</p><p></p><p>So turned my attention to the bottom of adapter (square flange) to the plate on top of plenum. To mount the adapter I drilled and tapped 5/16" holes in the 3/8" aluminum plate and had bolts screwed into them. But then I thought that maybe there is air leaking past the threads on the 2 lengthwise bolts so I've cut the heads off some bolts and JB welded them to the plate so I will have studs that won't leak air. But it is hard to see how those bolts could leak much air since I had locktite on the threads.</p><p></p><p>Now I am looking at the carb to adapter junction. Please take a look at the bottom of the carb: the gasket area around the bolt holes is not very wide...maybe 1/8". When I put the adapter flange onto the bottom of the carb and drop the bolts in then carefully take the bolts out without moving the adapter I find that the inside corners of the slotted holes comes very close to the edge of the carb gasket surface. In fact with the bolts in loose you can move the adapter back and forth on the carb so you would have a passage for air. I wasn't looking at this when I put it together the first time so maybe that is my problem.</p><p></p><p>Anyways I have managed to ruin both of the gaskets that came with the adapter so will have to make some new ones.</p><p></p><p>Any comments or suggestions would be greatly appreciated.</p><p>Brian</p><p>[GALLERY=media, 23810][/GALLERY]</p><p>[GALLERY=media, 23809][/GALLERY]</p></blockquote><p></p>
[QUOTE="canuckxxxx, post: 126391, member: 2409"] Things aren't going so well. Put the whole thing together and have a major air leak. Won't idle but revs up then almost dies then revs up again. Sprayed starting ether and engine reved up. Did any of you guys have trouble with air leaks. So I'm looking at all the junctions; for the plenum to plate junction I was using the existing gasket which I thought was good but maybe not so I made a new gasket. Still air leak. So turned my attention to the bottom of adapter (square flange) to the plate on top of plenum. To mount the adapter I drilled and tapped 5/16" holes in the 3/8" aluminum plate and had bolts screwed into them. But then I thought that maybe there is air leaking past the threads on the 2 lengthwise bolts so I've cut the heads off some bolts and JB welded them to the plate so I will have studs that won't leak air. But it is hard to see how those bolts could leak much air since I had locktite on the threads. Now I am looking at the carb to adapter junction. Please take a look at the bottom of the carb: the gasket area around the bolt holes is not very wide...maybe 1/8". When I put the adapter flange onto the bottom of the carb and drop the bolts in then carefully take the bolts out without moving the adapter I find that the inside corners of the slotted holes comes very close to the edge of the carb gasket surface. In fact with the bolts in loose you can move the adapter back and forth on the carb so you would have a passage for air. I wasn't looking at this when I put it together the first time so maybe that is my problem. Anyways I have managed to ruin both of the gaskets that came with the adapter so will have to make some new ones. Any comments or suggestions would be greatly appreciated. Brian [GALLERY=media, 23810][/GALLERY] [GALLERY=media, 23809][/GALLERY] [/QUOTE]
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canuckxxxx's Single carb manifold build
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