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BLIC magnetos

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BLIC magnetos
williamsderbys Offline
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#1
12-08-2022, 05:45 PM
I have two BLIC mags ,A4R and N4R. They appear to be identical.
Can anyone tell me the difference please.
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Spex Offline
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#2
13-08-2022, 12:34 AM
As there has been no reply, i will put in my two bobs worth.
Is there a diference in the height from the base to the driving shaft.
Have seen this on Bosch Magys.
Peter
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Andrew Fallon Offline
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Location: Netherlands
#3
13-08-2022, 01:34 PM (This post was last modified: 14-08-2022, 03:38 PM by Andrew Fallon. Edit Reason: Corrected measurement A4R )
Measured from the base to the shaft centre:
BLIC A4R: 1.1/2” (approx 38 mm)
BLIC N4R: 1.1/2” (approx 38 mm)

Others I have measured are:
BLIC G4R: 1.3/4” (approx 44.5mm)
Bosch/BLIC ZA4: 1.1/2” (approx 38 mm)
Andrew Fallon
Netherlands
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Alan Offline
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Car type: Race Ulster, 1926 Special, 1927 Chummy, 1930 Box
#4
13-08-2022, 02:28 PM
As far as I know all? magnetos have a centre height (base to armature axis) of either 45 or 38mm. That measurement may not be exact but it’s easy to do with a ruler. An Austin seven mag will have a centre height of 38 mm.
Alan Fairless
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Charles P Offline
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#5
13-08-2022, 11:54 PM
Ditto
ML RF4 - 38mm
ML RG4 - 45mm

The BESA standards for magneto sizes are listed in this useful and inexpensive book
https://www.ebay.co.uk/itm/Automobile-El...ect=mobile

Charles
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williamsderbys Offline
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#6
14-08-2022, 01:06 PM
I now have to hand a BLIC catalogue from the 20's
It shows the drive centre height as 38 mm on an A4.
Like the one on my car.
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