Cylinder-Piston Fitting - Husqvarna 2009 TE 310 Workshop Manual

ENGINE OVERHAULING
Cylinder piston fitting
Cylinder bore
Use an internal micrometer (Dc) and take the reading at "A" distance from the
top 0.80 in. (250-310 cc) or 0.39 in. (450-510 cc).
Piston diameter
Take the piston diameter (Dp) at "B" distance of 6 mm/0.24 in. (TE-TC-TXC 250),
8 mm/0.31 in. (TE-SMR 450/510), 9 mm/0.35 in. (TE 310, TC-TXC 450-510), from
the top. The clearance is = Dc-Dp.
MODEL
250
310
450-510
G.12
CLEARANCE (Dc-Dp)
0,020÷0,046 mm
(0.00079÷0.00181 in.)
0,037÷0,063 mm
(0.00146÷0.00248 in.)
0,025÷0,055 mm
(0.0010÷0.0022 in.)
Part. N. 8000 H0368 (09-2008)
WEAR LIMIT
0,10 mm
(0.004 in.)
0,15 mm
(0.006 in.)
0,12 mm
(0.0047 in.)