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The "Rolvisor"

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The "Rolvisor"
Robert Leigh Offline
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Joined: Aug 2017 Posts: 948 Threads: 22
Reputation: 10
Location: Near Cambridge, UK
Car type: 1928 tourer (mag type), short chassis Gould Ulster
#11
Yesterday, 10:50 AM
The main problem with a drop in magneto in place of a distributor is that there is a far heavier load on the drive gear system. Austin seven distributor gears will wear very rapidly if a mag is substituted.
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Tony Press Offline
Older Member
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Joined: Aug 2017 Posts: 1,756 Threads: 43
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Location: Malvern, Victoria, Australia
#12
Yesterday, 10:12 PM
(Yesterday, 10:50 AM)Robert Leigh Wrote: The main problem with a drop in magneto in place of a distributor is that there is a far heavier load on the drive gear system. Austin seven distributor gears will wear very rapidly if a mag is substituted.

Not to mention the increased load on the drive casing supporting a much larger magneto and distributor assembly.
http://austin7club.org
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Tony Griffiths Offline
First Grey Mag editor
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Joined: May 2018 Posts: 2,999 Threads: 566
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Location: Peak District, Derbyshire
Car type: 1929 Chummy, 1930 Chummy, 1930 Ulster Replica, 1934 Ruby
#13
2 hours ago
(Yesterday, 10:12 PM)Tony Press Wrote:
(Yesterday, 10:50 AM)Robert Leigh Wrote: The main problem with a drop in magneto in place of a distributor is that there is a far heavier load on the drive gear system. Austin seven distributor gears will wear very rapidly if a mag is substituted.

Not to mention the increased load on the drive casing supporting a much larger magneto and distributor assembly.

Sounds like one step forward (battery-free ignition) and two steps back (worn gears and cracked castings). Oh well....
http://lathes.co.uk
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