1 Frequent oil and filter changes are the most
important preventative maintenance
procedures that can be undertaken by the DIY
owner. As engine oil ages, it becomes diluted
and contaminated, which leads to premature
engine wear.
2 Before starting this procedure, gather
together all the necessary tools and materials.
Also make sure that you have plenty of clean
rags and newspapers handy to mop up any
spills. Ideally, the engine oil should be warm,
as it will drain better and more built-up sludge
will be removed with it. Take care, however,
not to touch the exhaust or any other hot
parts of the engine when working under the
vehicle. To avoid any possibility of scalding,
and to protect yourself from possible skin
irritants and other harmful contaminants in
used engine oils, it is advisable to wear rubber
gloves when carrying out this work. Access to
the underside of the vehicle will be greatly
improved if it can be raised on a lift, driven
onto ramps or jacked up and supported on
axle stands (see “Jacking and Vehicle
Support”). Whichever method is chosen,
make sure that the vehicle remains as level as
possible, to enable the oil to drain fully.
3 Remove the oil filler cap from the rocker cover,
then position a container beneath the sump.
4 Clean the drain plug and the area around it,
then slacken it using a suitable socket or
spanner (see illustration). If possible, try to
keep the plug pressed into the sump while
unscrewing it by hand the last couple of turns.
As the plug releases from the threads, move it
away sharply so the stream of oil issuing from
the sump runs into the container, not up your
sleeve!
5 Allow some time for the old oil to drain,
noting that it may be necessary to reposition
the container as the oil flow slows to a trickle.
6 After all the oil has drained, wipe off the
drain plug with a clean rag and check the
condition of the sealing washer. Renew the
washer if necessary. Clean the area around
the drain plug opening, then refit and tighten
the plug to the specified torque setting.
7 Move the container into position under the
oil filter. The oil filter is located at the rear of
the cylinder block, and is accessible from
under the vehicle (see illustration)
8 Using an oil filter removal tool, slacken the
filter initially. Loosely wrap some rags around
the oil filter, then unscrew it and immediately
position it with its open end uppermost to
prevent further spillage of oil. Remove the oil
filter from the engine compartment and empty
the oil into the container.
9 Use a clean rag to remove all oil, dirt and
sludge from the filter sealing area on the
engine. Check the old filter to make sure that
the rubber sealing ring hasn’t stuck to the
engine. If it has, carefully remove it.
10 Apply a light coating of clean oil to the
sealing ring on the new filter, then screw it into
position on the engine. Tighten the filter firmly
by hand only - do not use any tools. Wipe
clean the exterior of the oil filter.
11 Remove the old oil and all tools from
under the vehicle, then (if applicable) lower the
vehicle to the ground.
12 Fill the engine with the specified quantity
and grade of oil, as described in “Weekly
checks”. Pour the oil in slowly, otherwise it
may overflow from the top of the rocker cover.
Check that the oil level is up to the correct
level on the dipstick, then refit and tighten the
oil filler cap.
13 Run the engine for a few minutes, and
check that there are no leaks around the oil
filter seal and the sump drain plug.
14 Switch off the engine and wait a few
minutes for the oil to settle in the sump once
more. With the new oil circulated and the filter
now completely full, recheck the level on the
dipstick and add more oil if necessary.
15 Dispose of the used engine oil safely with
reference to “General repair procedures” in
the Reference Sections at the end of this
manual.
6 Engine oil and filter renewal
Every 6000 miles or 6 months
1•8 Maintenance procedures
See “Weekly checks” starting on Page 0•10. See “Weekly checks” starting on Page 0•10. See “Weekly checks” starting on Page 0•10.
5 Battery check4 Tyre checks3 Fluid level checks
Weekly checks
6.7 Oil filter location - CVH engine6.4 Engine oil drain plug (arrowed) -
CVH engine
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