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+--- Thread: 3-bearing engine - Magazine Cover (/showthread.php?tid=4089)
3-bearing engine - Magazine Cover - Tony Griffiths - 29-03-2020
A clear - if rather perfunctory - sectional drawing of a 3-bearing engine from 1936.
Click the image for a clear version - and click again for an enlargement or to copy.
RE: 3-bearing engine - Magazine Cover - Bob Culver - 29-03-2020
Is anyone still running the original pattern wide rings? With them oil consumption on my car was for a period almost nil. When it reached 1 pint in 800 miles my father thought ir was due for overhaul!!
Was there ever an engine wiht a less rigid centre bearing? ThebBig Seven was the other extreme.
RE: 3-bearing engine - Magazine Cover - Chris KC - 29-03-2020
Nice picture, thanks for sharing.
RE: 3-bearing engine - Magazine Cover - Ritchie Wilson - 30-03-2020
Bob, Jack Cotton had a scheme for reinforcing the centre-main and making the 3-bearing crankcase less liable to flex by bolting an aluminium casting to the base of the crankcase where the mesh is usually.
A diagram was in one of the 750 Club Bulletins and is reprinted in "Design for Competition" (1966).
RE: 3-bearing engine - Magazine Cover - Jamie - 30-03-2020
(30-03-2020, 02:53 AM)Ritchie Wilson Wrote: Bob, Jack Cotton had a scheme for reinforcing the centre-main and making the 3-bearing crankcase less liable to flex by bolting an aluminium casting to the base of the crankcase where the mesh is usually.
A diagram was in one of the 750 Club Bulletins and is reprinted in "Design for Competition" (1966).
Would anyone, by chance, have a copy of this which they could post here, assuming that copyright is not a concern?
Jamie.