In 1952 big additions to the model line up where the ELF and FLF foot shift models which required the addition of the hand clutch booster otherwise known as the “mouse trap” EL,ELS,FL and FLS models continued,
Also in 1952. the 32e generator was upgraded to the model 52 2 brush 6 volt. A check valve and screen were added at the side of the rear tappet guide into the oil passage leading to hydraulic lifter units to filter oil before entering hydraulic lifter units and preventing oil in overhead passages from draining back. Exhaust valves were Parkerized to prevent corrosion.
This speedometer is used from 1948 to 1952
Here are some great sources for detailed information about Harley Davidson’s 1952 Panhead
How to restore your Harley-Davidson by Bruce Palmer 111
Riding vintage website
the Jocky Journal web forum
|model||engine type||actual displacement||compression||factory options|
|EL sport solo||61 c.i.high compression||60.32 c.i.||7.0:1||__|
|ELS sidecar twin||61 c.i.high compression||60.32 c.i.||7.0:1||S = sidecar gearing|
|ELF sport solo foot shift||61 c.i.high compression||60.32 c.i.||7.0:1||F = foot shift|
|FL sport solo||74 c.i.high compression||73.66 c.i.||7.0:1||__|
|FLS side car twin||74 c.i.high compression||73.66 c.i.||7.0:1||S = sidecar gearing|
|FLF sport solo foot shift||74 c.i.high compression||73.66 c.i.||7.0:1||F+foot shift|
NOTE: the ” S “ denoting sidecar gearing will not be stamped in serial number.
NOTE: the ” F “ denoting foot shift will not be stamped in serial number.
|black||_____||bluish gray center. cream white mph numbers. red indicator|
|marine blue metallic||_____||_____|
|bronco bronze metallic||_____||_____|