Engine Changes During Production
| Model | Date Range | Engine Change Work Order | Engine Number / Range of Engine Numbers | Change |
|---|---|---|---|---|
| A09 | xx xxx 1908 | 1770–1778 | The A09... | |
| 24 Nov 1908 to
25 Jun 1909 |
1770–1771 | A09.01-A09.73 | Sometime between A09.1 and A09.73 the engine sump was changed from a sheet copper sump carried over from the X Type Engine to a Cast Alloy sump. | |
| A11 | xx xxx 1908 | 1803–1811 | The A11... | |
| A12 | xx xxx 1908 | 1811–1812 | The A12... | |
| 16-20 | 21 Nov 1912 | 1813–1818 | The 16-20...
For the 16-20 A-Type Laurence Pomeroy introduced a completely new engine design with a silent chain drive for the cam-shaft and magneto. The inlet manifold is now cast en bloc with the radiator cooling outlet pipe located at the front where the fan bolts on this was to allow a waterpump to be fitted if required. |
|
| 06 Mar 1913 to 26 Jun 1913 | 1813-1813 | A8-A31 | Sometime between Engine Numbers A8 and A31 the exhaust manifold gained cooling fins located along the top of the manifold. | |
| 26 Jun 1913 to 12 Mar 1914 | 1813–1814 | A31-A41 | Sometime between Engine Numbers A41 and A100 the external oil level pot located on the side of the engine sump carried over from A09-A12 Production was deleted in favour of a redesigned sump integrating this feature. | |
| 26 Jun 1913 to
12 Mar 1914 |
1813–1816 | A31-A100 | Sometime between Engine Numbers A31 and A100 the radiator outlet located around the fan on the engine block was relocated to the side of the block near the front under the inlet manifold. | |
| 29 Sep 1913 to 12 Mar 1914 | 1813–1816 | A41-A100 | Sometime between Engine Numbers A41 and A100 the external oil feed line going to each main bearing in the crank case was deleted in favor of an oil gallery integral to the crank case. | |
| 12 Mar 1914 to
5 May 1914 |
1816–1817 | A100-A151 | Sometime between Engine Numbers A100 and A151 the number of securing bolts holding the radiator inlet ontop of the engine block increased from 4 bolts to 6 bolts. | |
| 12 Mar 1914 to
5 May 1914 |
1816–1817 | A100-A151 | Sometime between Engine Numbers A100-A151 the steel baffles located under the cylinders in the engine block were deleted from production. |
Read more about this topic: Vauxhall A-Type
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