| NATURE OF RELEASE: |
Timing Cover replacement |
| MODELS AFFECTED: |
Early Commando with chain driven contact breaker |
| DISTRIBUTION: |
Worldwide (for general distribution) |
| EXPLANATION: |
It has been brought to our notice that severe engine damage has been caused on more than one occasion by the use of Atlas timing cover 25187 as a replacement for the Commando timing cover 06-0716. The reason is that the bleed back from the oil pressure release valve into the oil feed differs between Atlas and Commando . Use of the Atlas cover on a Commando crankcase. uncovers the release valve oilway, resulting in a severe loss of oil pressure.
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| ACTION: |
Ensure that whenever a timing cover is replaced, only the correct replacement is used. |
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| Febuary 1971 |
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| Norton Villiers Canada Limited |