MG MGB TOURER GHN5 Handbook page 42

Wheels
and
Tyres
Tyre To obtain the best tyre mileage and to suppress the development of uneven
maintenance
wear on the tyres the wheels can be interchanged diagonally bringing the spare
Fig.
6
wheel into use (see Radial-ply tyres).
Excessive local distortion as a result of striking a kerb, a large stone, a deep
pot-hole, etc., may cause the casing cords to fracture.
Tyres, including the spare, must be maintained at the pressures recommended
(see 'GENERAL DATA'); check with an accurate tyre gauge at least once a
week, and regulate as necessary. Pressures should be checked when the tyres are
cold; do not reduce the pressure in warm tyres where the increase above the
normal pressure is die to temperature.
See that the valve caps are screwed down firmly by hand. The cap prevents the
entry of dirt into the valve mechanism and forms an additional seal on the valve.
preventing any leakage if the valve core is damaged.
Flints and other sharp objects should be removed with a penknife or similar tool.
If neglected, they may work through the cover.
Any oil or grease which may get onto the tyres should be cleaned off by using fuel
sparingly. Do not use paraffin (kerosene), which has a detrimental effect on
rubber.
When repairing tubes have punctures or injuries vulcanized. Ordinary patches
should only be used for emergencies.
Vulcanizing is absolutely essential in the case of tubes manufactured from
synthetic rubber.