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Author Topic: Boxer Engines  (Read 2197 times)

Offline Air4Life

  • Lives in Foothills of Mt. Olympus
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Boxer Engines
« on: May 17, 2013, 10:26:15 AM »

Is there a specific reason why the Ural 650 and 750 cc is inverted as opposed to the Boxers we are familiar with?


Ural engine:
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sold:
1983 33.8 E. Oil & Trans ?
Batt 10/06/2011
33.2 Head 35.5 (I0.005) ?(E0.009) 35.5
RearT 35.5 Spline 7/12 &
T.O.Bearing
C.U. Paste 5/12

Offline marcmax

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Re: Boxer Engines
« Reply #1 on: May 17, 2013, 12:58:19 PM »
It is probably because the design is a copy of an early BMW boxer which had the pushrods on top.
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Offline Barry

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Re: Boxer Engines
« Reply #2 on: May 17, 2013, 01:48:59 PM »
+1

BMW moved the camshaft from above the crankshaft to below it  with the introduction of the /5's. Usual reason cited is to improve ground clearance.
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Barry Cheshire, England 79 R45

Offline Air4Life

  • Lives in Foothills of Mt. Olympus
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  • Posts: 206
  • With each added mile I enjoy it more.
Re: Boxer Engines
« Reply #3 on: May 17, 2013, 02:07:42 PM »
Quote
the design is a copy

Quote
...to improve ground clearance.


Yes. Thanks.
Logged
sold:
1983 33.8 E. Oil & Trans ?
Batt 10/06/2011
33.2 Head 35.5 (I0.005) ?(E0.009) 35.5
RearT 35.5 Spline 7/12 &
T.O.Bearing
C.U. Paste 5/12
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