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techtalk:ih:oil04h [2023/11/03 16:42] – [Pics] hippysmacktechtalk:ih:oil04h [2024/01/01 21:03] (current) – hippysmack
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 [[:techtalk:menu|{{  :techtalk:gototechnicalmenu.jpg|}}]] [[:techtalk:menu|{{  :techtalk:gototechnicalmenu.jpg|}}]]
 ====== IH: Oiling & Lubrication - Sub-04H ====== ====== IH: Oiling & Lubrication - Sub-04H ======
-====== Pics and Information on L1973-1978 XLCH Oil Tanks ======+====== Pics and Information on L1973-1978 XLCH "Lunchbox" Oil Tanks ======
 See also in the Sportsterpedia; \\ See also in the Sportsterpedia; \\
 ….. *[[techtalk:ih:oil04#oil_line_routing|57-85 Oil Line Routing]] \\ ….. *[[techtalk:ih:oil04#oil_line_routing|57-85 Oil Line Routing]] \\
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 And used what looks like lightweight welded strap metal with an angular bracing running from the rear engine mount up to the end of the fender supports. \\ And used what looks like lightweight welded strap metal with an angular bracing running from the rear engine mount up to the end of the fender supports. \\
 But a greater change (apart from the casting elimination) is the distance between the head tube and the rear vertical tubes. 1972 = 28.42", 1973 = 29.04". \\ But a greater change (apart from the casting elimination) is the distance between the head tube and the rear vertical tubes. 1972 = 28.42", 1973 = 29.04". \\
-Even though the 1972 frame head had a greater rake angle (30°) the 1973 rake angle was less (29°35') the distance to the rear tubes is greater. ((piniongear of the XLFORUM http://xlforum.net/forums/showthread.php?t=806891)) \\+Even though the 1972 frame head had a greater rake angle (30°) the 1973 rake angle was less (29°35') the distance to the rear tubes is greater. ((piniongear of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/96210-xlch-lunchbox-oil-tank-question?t=806891)) \\
 L73-78 tanks are notched on the flange between the top bolt holes. This notch allowed HD to raise the tank position. \\ L73-78 tanks are notched on the flange between the top bolt holes. This notch allowed HD to raise the tank position. \\
 Raising the tank meant that both the upper and lower mounts were changed (new upper mount - 62554-73 and new lower mount - 62555-73). \\ Raising the tank meant that both the upper and lower mounts were changed (new upper mount - 62554-73 and new lower mount - 62555-73). \\
-In 1975, a ridge was added to the inside of the filler neck to retain the filler cap better. The L73-78 bottom mount is taller for the raised tank. ((Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1284627)) +In 1975, a ridge was added to the inside of the filler neck to retain the filler cap better. The L73-78 bottom mount is taller for the raised tank. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/126499-xlch-oil-tank-differences?t=1284627)) 
  
 Below is an after market version upper oil tank mount from Legends Motorcycles showing how the upper mount changed. \\  Below is an after market version upper oil tank mount from Legends Motorcycles showing how the upper mount changed. \\ 

Trace: • IH: Oiling & Lubrication - Sub-04H • EVO: Body Parts