broadstreet3 Posted January 6, 2012 Share Posted January 6, 2012 I would like to find the application for the Swan Carburetor and manifold pictured. Appears to be for a large engine as the carb bore is 1 3/4". Any help greatly appreciated. Rand Broadstreet email: broadstreetltd@msn.com Link to comment Share on other sites More sharing options...
Dave Mellor NJ Posted January 7, 2012 Share Posted January 7, 2012 Very unusual. I can't figure out the big hole on the top or how a bolt can get into the four inside, lower holes Link to comment Share on other sites More sharing options...
oldford Posted January 7, 2012 Share Posted January 7, 2012 My guess is, the four holes at the bottom go over studs that protrude just 1/4" beyond the manifold and then apply a nut and washer. As far as the large hole on top, that spans the two intake ports on the head (which then splits inside the head to two cylinders each. It may have been cheaper to make one hole in the manifold than smaller holes close together. The large square holes on the ends were probably used to take hot air from the surface of the head to pre-heat the intake mixture. Not real sure, but it sounds good....Frank Link to comment Share on other sites More sharing options...
1912Staver Posted January 12, 2012 Share Posted January 12, 2012 This is posibly a unit intended for use on a farm tractor. Most of the early tractors had very elaborate manifolds that circulated exhaust gas around the intake pasages. This enabled the machine to run on Kerosene, {starts on Gasoline} a signifigantly lower cost fuel . These manifolds were prone to damage over time, and were very expensive to replace {or N.L.A. for out of production machines}. So there sprang up a market for simpler non heated replacement manifolds . Kerosene eventualy lost it's cost advantage so straight gasoline operation became normal. I belive Swan were one of the manufactures of these replacement manifolds.Greg in Canada- Lots of those old Kero burners in western Canada. Link to comment Share on other sites More sharing options...
carbking Posted January 12, 2012 Share Posted January 12, 2012 Information on the Swan carburetor is virtually non-existant.We have entries for Elcar and McFarland listed in our database. These all from the years 1927 and 1928.During this time, many carburetor manufactures made A/M manifold/carburetors to sell to customers that were unhappy with their existing carburetors. The customers often finding that what they had originally was better than the A/M unit.Jon. Link to comment Share on other sites More sharing options...
Dave Mellor NJ Posted January 13, 2012 Share Posted January 13, 2012 This is posibly a unit intended for use on a farm tractor. Most of the early tractors had very elaborate manifolds that circulated exhaust gas around the intake pasages. This enabled the machine to run on Kerosene, {starts on Gasoline} a signifigantly lower cost fuel . These manifolds were prone to damage over time, and were very expensive to replace {or N.L.A. for out of production machines}. So there sprang up a market for simpler non heated replacement manifolds . Kerosene eventualy lost it's cost advantage so straight gasoline operation became normal. I belive Swan were one of the manufactures of these replacement manifolds.Greg in Canada- Lots of those old Kero burners in western Canada.Thanks,Greg. That explains those holes,but I still don't see how a person could put a bolt ,or stud with nut, in those 4 holes. Link to comment Share on other sites More sharing options...
28 Chrysler Posted January 15, 2012 Share Posted January 15, 2012 The four holes may be for alinement studs and the flanges on the bottom could have been clamped down with a simple bolt and bar Link to comment Share on other sites More sharing options...
Dave Mellor NJ Posted January 16, 2012 Share Posted January 16, 2012 Would you need 4 holes just to line it up? Link to comment Share on other sites More sharing options...
V.Milke Posted June 5, 2012 Share Posted June 5, 2012 I know Elcar used Swan carburator and manifold at least in 1926... my car has one. Pic of my carb attached.It was promoted as a carburator that helped to save fuel. You could actually regulate it from the dashboard, moving a system on it's side that will move a needle inside or out, to allow less or more gas to go into the carb. I haven't seen it work, as you can tell in one of the pics that my car is a rough project... engine working fine now, but I forgot to try the system.My 2 cents...Victor Link to comment Share on other sites More sharing options...
Layden B Posted June 6, 2012 Share Posted June 6, 2012 Swan also made an aftermarket manifold and carburetor for Model T Ford but the setup in the original question is not one. Link to comment Share on other sites More sharing options...
Ozstatman Posted June 6, 2012 Share Posted June 6, 2012 See the manifold and carb(and a second carb) were on Hemmings a little while back - 1924-26 Hudson Super-Six Racing Carb, Carburetors for sale | Hemmings Motor News Link to comment Share on other sites More sharing options...
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