928 S V8-4957cc 5.0L (1985)
Always coat tire beads with rubber lubricant when mounting tire on rim.
Work sequence
-
install new valve stem and remove insert
-
install tire on rim and inflate to 4.0 bar (60 psi)
-
ensure tire is seated on rim
-
install valve stem insert and inflate tire to correct pressure
Note
Use a tube with 215/60 VR 15 tires only in emergencies.
Do not use tubes and tires of different makes.
Tubes are not available for series 50/55 tires.
New tire instructions
Always use tires of the same make, type and size, Note
When changing tires of only one axle set, new tires should be mounted on wheels of front axle
^
rear axle is more critical to directional stability
^
on wet surfaces, front wheels contact water first while rear wheels follow in the produced track
If replacing only one tire of an axle set, the difference in tread depth between tires must not exceed 30%.
Matching tires with forged, perforated disc wheel rims, Part No. 928.361.021.05
Tires and perforated disc wheel rims are matched during vehicle assembly to minimize radial run-out.
Matching procedure
^
a machined depression on the rim well of the perforated disc wheel rim marks the point of highest radial run-out
^
a red locating dot is pasted on the outside of the rim to mark the same point of highest radial run-out
^
tires are marked with a green dot
-
align red and green dots when installing tire on rim
^
dots must be within 30 mm (1-3/16 in.) of each other
Note
If the red locating dot is missing, mark the location of machined depression with chalk or tape before installing tire.
