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{{short description|Early motor company based in Indianapolis, IN}}

{{Infobox company
| name = Weidely Motors Company
| type =
| industry = [[Automotive]]
| predecessor = 
| founded = {{Start date and age|1914}}
| founder = George Weidely and H.O. Smith
| hq_location_city = [[Indianapolis, IN]]
| hq_location_country = [[United States]]
}}

'''Weidely Motors Company''' was an early motor company based in [[Indianapolis]], IN. Weidely started in 1915.{{R|start}} It made engines for Premier, [[Chalmers Automobile|Chalmers]], [[Oliver Farm Equipment Company#Cleveland Tractor Company|Cletrac]] crawlers and [[Owen Magnetic]] cars.{{R|plate}} They also made a V-12 engine for the 1917 Pathfinder and 1920 [[Heine-Velox]].<ref name="plate">{{cite web|url=https://forums.aaca.org/topic/318225-weidely-motors-company-number-plate/|title=AACA history|last=|first=|date=10 November 2018|website=AACA|url-status=live|archive-url=|archive-date=|accessdate=28 January 2020}}</ref>

George Weidely and H.O. Smith, started the [[Premier Motor Manufacturing Company]] on December 24, 1902.{{R|start}} Weidely was an innovative engine designer and created an early overhead valve V-12.{{R|start}} Premier went into receivership in 1914 so they took the rights and development of the Premier engine and formed the Weidely Engine Company in partnership with R.M. Owen who was president of the [[Justus B. Entz|Entz Motor Corporation]].<ref name="start">{{cite web |title=The Great Pathfinder – "King of the Twelves" |url=http://theoldmotor.com/?p=106867 |website=Old Motor company |accessdate=28 January 2020}}</ref> Research has not revealed when the company closed but it made engines for Cletrac up to 1932.<ref name="plate" />

When comparing later OHC [[Chalmers Automobile|Chalmers]] power plants to the T head or L head engines of the pre-World War I period, their specifications cannot be ignored. The Chalmers' two-roller-bearing-crankshaft F-head engine of 1910 had been a surprising performer, with a streamlined intake manifold feeding the cylinders via extremely large intake valves located in the head. The exhaust side valves were in a pocket, leaving a lot of room in the cylinder head for the inlets. In 1915, Chalmers made a great step forward with the incorporation of a full-overhead-camshaft Weidley engine, which pioneered the idea of driving the overhead-camshaft from the middle of the crankshaft instead of from the front or the rear. The model 6-40 had a bore and stroke of 3.125 and 5 inches, respectively, and camshaft rigidity was obtained by using a 2.25-inch diameter. The location of the camshaft drive in the center made it necessary to have four main bearings instead of the usual three. Tubular connecting rods were also used, which was a very advanced idea for its day.<ref name="overhead">{{cite magazine |last= |first= |title=Bulb Horn Magazine, Volume 37, Issue 6 |magazine=Bulb Horn Magazine |date=1976 |pages=30–34}}</ref>

==References==
<references />

[[Category:Motor vehicle manufacturers based in Indiana]]
[[Category:Defunct motor vehicle manufacturers of the United States]]
[[Category:Defunct companies based in Indiana]]
[[Category:Manufacturing companies based in Indiana]]
[[Category:Vehicle manufacturing companies established in 1914]]
[[Category:1914 establishments in Indiana]]
[[Category:History of Indiana]]

{{motorvehicle-company-stub}}
[[Category:Engine manufacturers of the United States]]

Weidely Motors Company - Revision history

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