Piston And Connecting Rod Inspection - Toyota 1HD-FT Repair Manual

(b) Using a groove cleaning tool or broken ring, clean the
piston ring grooves.
Ie)
Using solvent and
a brush. thoroughly clean the
piston.
NOTICE: Do not u••• wi,. brush.
--
EG-75
1.
CLEAN PISTON
la} Using a gasket scraper. remove the carbon from the
piston top.
PISTON AND CONNECTING ROD
INSPECTION
ENGINE - ENGINE MECHANICAL
Sized Mark
Front Mark
(Arrow)
39.06mm
2. INSPECT PISTON AND PISTON RING
A. In.pect pilton diameter and oil clearance
HINT: There are 3 sizes of the standard piston diams·
ter. marked "1'",
'"2"'
and "3'" accordingly. The mark is
stamped on the piston top.
(a) Using a micrometer. measure the piston diameter at
right angles to the piston pin center line. 39.06 mm
(1.5378
in.) from
the piston head.
Piston diameter:
STD
Mark
.,O'
93.845 - 93.855
mm
(3.6947 - 3.6951 In.)
Mark '"2·
93.855 - 93.865 mm (3.6951 - 3.6955 in.)
M.rk "3-
93.865 - 93.875 mm (3.6955 - 3.6959 in.)
O/S 0.50
94.345 - 94.375 mm (3.7144 - 3.7155 in.)