Can-Am DS 450 2008, Руководство по ремонту

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Section 09 TECHNICAL SPECIFICATIONS
Subsection 01 (DS 450/DS 450 X)
MODEL DS 450 DS 450 X
ENGINE (cont'd)
New mm (in) 33.459 to 33.475 (1.3173 to 1.3179)
Valve lifter bucket diameter
Service limit mm (in) 33.440 (1.3165)
Valve lifter bucket radial clearance Service limit mm (in) 0.08 (.0032)
New mm (in) 96.930 to 96.960 (3.8161 to 3.8173)
Size “1”/“A”
Service limit mm (in) 96.910 (3.8153)
New mm (in) 96.940 to 96.970 (3.8165 to 3.8177)
Piston measurement
Size “2”/“B”
Service limit mm (in) 96.920 (3.8157)
Two piston sizes are available to matched with cylinders . When replacing piston, always check the letter stamps at the bottom of cylinder
to match them (piston “1” with cylinder “A” and piston “2” with cylinder “B”).
Do not mismatch them. Serious engine damages can occur.
New mm (in) 0.040 to 0.085 (.0016 to .0033)
Piston/cylinder clearance
Service limit mm (in) 0.090 (.0035)
1 st
Upper compression ring, rectangular
2 nd Lower compression ring, rectangular Piston ring type
3 rd
Oil scraper ring
Upper
compression
ring
0.15 to 0.40 (.006 to .016)
Lower
compression
ring
0.15 to 0.40 (.006 to .016)
Oil scraper ring
New mm (in)
0.15 to 0.35 (.006 to .014)
Ring end gap
All Service limit mm (in) 1.00 (.0394)
Upper
compression
ring
0.025 to 0.070 (.0010 to .0028)
Lower
compression
ring
0.025 to 0.070 (.0010 to .0028)
Oil scraper ring
New mm (in)
0.015 to 0.060 (.0006 to .0024)
Upper
compression
ring
0.120 (.0047)
Lower
compression
ring
0.120 (.0047)
Ring/piston groove clearance
Oil scraper ring
Service limit mm (in)
0.100 (.0039)
Size “1”/“A” 97.000 to 97.012 (3.8189 to 3.8194)
Cylinder diameter
Size “2”/“B”
New mm (in)
97.012 to 97.025 (3.8194 to 3.8199)
Cylinders are available in two diameters. Always check the letter at the bottom of cylinder to select the proper piston
(piston “1” with cylinder “A” and piston “2” with cylinder “B”).
Do not mismatch them. Serious engine damages can occur.
Maximum
New
mm (in) 0.024 (.0009)
Cylinder taper
Service limit mm (in) 0.090 (.0035)
Maximum
New
mm (in) 0.015 (.0006)
Cylinder out of round
Service limit mm (in) 0.020 (.0008)
370
vmr2008-039