Oil is collected from the sump and is drawn through a
mesh strainer into the oil pump rotor. The oil pump is
fitted with a single pumping rotor which supplies
pressurised oil to the lubrication circuit and the oil
cooler.
Pressurised oil is delivered to the outside rim of the oil
filter near to where the oil pressure relief valve is
fitted. The relief valve is set to open at
75
IbIin2 and
when open, returns high pressure oil direct to the
sump.
Filtered oil is then fed into the lower crankcase gallery.
From here is distributed around the engine:
Some oil is sent directly to the cylinder head via a
drilling in the upper crankcase and an external
link pipe. A low oil pressure warning light switch
is located at the crankcase end of the link pipe.
Oil that arrives at the cylinder head is fed to both
cams via a gallery in the cylinder head casting
that delivers oil directly to the sprocket end cam
bearings. Oil is then fed through the hollow
camshafts to the other camshaft bearings, the
tappet buckets and the valves.
The remaining oil is sent directly to the remote oil
cooler (mounted beneath the radiator). Cooled oil
is returned to the main gallery located under the
crankshaft. Here it is delivered to the crankshaft
main bearings and, via drillings in the crankshaft,
to the big end bearings.
Spray jets located in the upper crankcase,
behind the main bearing shells, -lubricate the
pistons and connecting rod small ends. These
jets are fed oil from the crankshaft oil feed.
Oil is fed to the gearbox via internal oil pipes and
drilling that supply oil directly to the end of each
shaft. Oil is circulated along the gearbox shafts to
exit holes that feed directly to the bearings, gears
and selectors.
On the Sprint, oil is also fed to the alternator
cover to aid cooling of the alternator. The oil is
taken from the crankshaft oil feed and directed to
the cover via drillings in the upper crankcase and
throuah a small hole in the cover aasket.
gine
Oil
Specification
Use semi or fully synthetic 10W/40 or 15W/50
motorcycle engine oil which meets specification API
SH (or higher) and JASO MA, such as Mobil 1 Racing
4T.
A
Caution
.
Triumph high performance fuel injected engines are
designed to use semi or fully synthetic motorcycle
engine oil which meets specification API SH (or
higher) AND JASO MA.
Do not add any chemical additives to the engine oil.
The engine oil also lubricates the clutch and any
additives could cause the clutch to slip.
Do not use mineral, vegetable, non-detergent oil,
castor based oils or any oil not conforming to the
required specification. The use of these oils may
cause instant, severe engine damage.
Ensure no foreign matter enters the crankcase
during an oil change or top-up.
Triumph Engine Oil
Your Triumph Motorcycle is a quality engineered
product which has been carefully built and tested to
exacting standards. Triumph Motorcycles are keen to
ensure that you enjoy optimum performance from
_--y_o~-m-gh~ne-and
.
-
with this objective,in=mind have
-
tested many of the engine lubricants currently
available to the limits of their performance.
Mobil
1
Racing 4T consistently performed well during
our tests and has become our primary
recommendation for the lubrication of all current
Triumph motorcycle engines.
Mobil 1 Racing 4T, specially filled for Triumph, is
available from your authorised Triumph dealer.
Service
Manual
-
Speed Triple
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