Date of Manufacture

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Sundial Engine Dating - 2HP

From material supplied by Reg Ingold

2HP Sundial Engine Production
Year Of ManufactureSerial NumberAverage Production Qty
1926100493
1927593493
19281086493
19291579493
19302072493
19312565493
19323059387
19333517388
19343975388
19354432388
19364610596 (1)
19375346596
19385803351 (2)
19396154351 (2)
19406508351 (2)
19416856351 (2)
19427207351 (2)
19437559523 (3)
19448082523
19458605523
19469128523
19479651523
194810174526
194910700End of 2hp

NOTES:
(1) Serial No 4610 end of Type A
(2) War Years, Low Output
(3) Colour changed to Green @ No 7259

2HP Sundial Engine - Summary of Changes
Engine HPTypeColourSerial NoMain Changes
2hpARedBelow 3050Carburettor Needle changedX1377 to X1402 (h/n X1205) (1)
2hpARedBelow 4000No valve guides in head
2hpARedBelow 4500Valve guides fitted in head (Head No X1242)
2hpARedBelow 4610H.V.Mackay on name plate for first time.
2hpBRedFrom 5803(Head No 1249) back cover lugs now on inspection plate
2hpBRedBelow 6048Camshaft changed from No X1421 to X1454
2hpBRedFrom 6101Lubrication changed from grease to oil
2hpBRedFrom 6353(Head No X1265) Outside fill fuel tank, cast cross-members (2)
2hpBRedBelow 7000Tin tray ended, balance weights in flywheel
2hpBRedBelow 7259End of dull Red finish
2hpBGreenFrom 7559Kero attachment became available
2hpBGreenBelow 11000Very few Changes

NOTES:
(1) Engine No 3050 magneto wire support change X914 to X1373, Crankcase X1203 to X1372
Engine No 3051 cam wheel changed X1207 to X1229, Cam X1208 to X1230, Rocker arm X1211 to X1228
Inlet & Exhaust valve X1328 to X1387, Rocker Pin X1321 to X1328
Engine No 3056 grease cup body change X838 to X961

(2) Governor weights changed X1210 to X1264

All Sundials had a rotary magneto of various types

Sundial’s Kero attachment could fit earlier models.

 
 
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