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N39453
How to renew the lubricating oil
Warning! Discard the used lubricating oil in a safe place and in accordance with local regulations.
Warning! Do not adjust the oil level while running.
Note: Renew the filter canister when the lubricating oil is renewed.
1.
Use a spanner (N1) to release the union nut on the bracket for the fuel connection and sump drain.
2.
Connect the pipe to a sump drain pump (O1). Pump the lubricating oil into a suitable container with a
capacity of approximately 11 litres (19 pints), the lubricating oil should be drained while it is still hot.
3.
Disconnect the pipe from the pump and reconnect the pipe to the bracket. Tighten the connection.
Remove the container of used lubricating oil.
4.
Clean the area around the filler cap on top of the rocker cover and remove the cap.
Caution: These engines are fitted with a 'closed' crankcase breather system. Any necessary oil additions to
the sump must be carried out with the engine stationary. Under no circumstances must oil additions be carried
out with an engine running as oil could enter the 'closed' crankcase breather system causing the engine speed
to increase rapidly without control.
It is important to ensure the correct level of lubricating oil is not exceeded in the sump. If there is too much oil
in the sump the excess must be drained to the correct level. An excess of engine oil in the sump can enter the
'closed' crankcase breather system, which could cause the engine speed to increase rapidly without control.
5.
Add slowly, new and clean lubricating oil of an approved specification to the engine. Allow the oil enough
time to pass to the sump, remove the dipstick (P2) and ensure that the lubricating oil is to the full mark (P1).
The oil level must not be above the full mark. If it is, the engine could be damaged.
6.
Fit the filler cap and ensure that the dipstick is
fitted correctly in the dipstick tube.
7.
Start the engine and check for lubricating oil
leakage. Stop the engine. After 15 minutes check the
oil level on the dipstick and, if necessary, put more
lubricating oil into the sump.
Warning! Discard the used lubricating oil in a safe
place and in accordance with local regulations.
Illustration shows 422GM and 422TGM, 415GM is similar.
Chapter 4
Page 55
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