Chery A15. Manual — part 225

Continued
Axial clearance: 0.09–0.24 mm
Maximum wear limit for maintenance: 0.37 mm
Main bearing clearance: 0.022–0.062 mm
Connecting rod bearing clearance: 0.023–0.067 mm
8. Rocker arm shaft
Rocker arm shaft diameter: 18.966–18.984 mm
9. Rocker arm/hydraulic tappet
Rocker arm shaft inner diameter: 19.00–19.02 mm
Rocker arm axial clearance: 0.016–0.054 mm
Tappet diameter: 11.979–11.966 mm
Minimum piston stroke: 2.2 mm
Lift: intake valve 3.25mm
Lift: exhaust valve 3.25mm
10. Camshaft bearing diameter
Bearing diameter: 25.359–25.380 mm
11. Camshaft
Camshaft collar diameter: 25.290–25.309 mm
Bearing clearance: 0.053–0.093 mm
Maximum maintenance limit: 0.12 mm
Axial clearance: 0.05–0.39 mm
Intake valve: 8.75mm
Exhaust valve: 8.00 mm
Exhaust valve timing: close (ATDC) 1.4; open (BBDC) 38.6: continuous angle 218.2
Intake valve timing: close (ABDC) 37.0; open (ATDC) 1.0; continuous angle 218.4
Valve overlap: 2.4
12 Cylinder gasket
Aluminum
Cylinder gasket thickness: 0.60 - 0.70 mm

Continued
13. Valve seat
Intake valve seat diameter: 31.975 -31.950 mm
Exhaust valve seat diameter: 25.20 - 25.175 mm
Max. radial run-out: 0.05mm
Intake and exhaust valve seat width: 0.75 - 1.25 mm
Max. maintenance limit: 1.50 mm
14. Valve conduit
Conduit inner diameter: 5.975–6.000 mm; conduit height: 13.25–13.75 mm
15. Valve
Valve angle (intake and exhaust): 45–45.5 degrees
Intake valve diameter: 30.07–30.33 mm
Exhaust valve diameter: 23.13–23.39 mm
16. Valve clearance
Intake valve clearance: 1.15–1.48 mm
Max. maintenance limit: 0.95mm
Exhaust valve clearance: 1.475–1.805 mm
Max. maintenance limit: 1.05mm
17. Valve length
Intake valve: 108.72–109.22 mm
Exhaust valve: 117.57–118.07 mm
18. Valve top height
Intake valve: 48.62 mm
Exhaust valve: 48.62 mm
19. Valve diameter
Intake valve: 5.934–5.952 mm
Exhaust valve: 5.906–5.924 mm
20. Valve conduit clearance
Intake valve: 0.048–0.066 mm

Continued
Maximum allowable 0.076mm
Maximum allowable for maintenance 0.25mm
Exhaust valve: 0.0736–0.094 mm
Maximum allowable: 0.101 mm
Maximum allowable for maintenance 0.25mm
21. Valve spring
Free length: 50.0mm
Normal elasticity (valve closes): 285 - 319 N @ 43.0 mm (64 - 71.71 lbs. @ 1.6 in.)
Normal elasticity (valve opens): 774 - 846 N @ 34.25 mm (174 - 190 lbs. @ 1.28 in.)
Fixing height: 43.0 mm
22. Engine oil pump
Safety valve opening pressure: 413.69 kPa
23. Engine oil pressure
Normal temperature shall be ensured
Idle speed: 25 kPa (4 psi)
3,000 revolutions 10-550 kPa (25–80 psi)
* Do not run the engine to 3,000 rpm if the pressure is zero in the case of idle speed.
24. Screwing torque (N.M)
Camshaft position sensor: -10N·M
Crank shaft position sensor: -10N·M
Camshaft sprocket wheel bolt: -115N·M
Rocker arm/camshaft bearing cover: -25N·M
Timing chain cover: -12N·M
Timing chain guide board: -28N·M
Timing chain tensioner: -62N·M
Connecting rod bolt: -26N·M +1/ 4 angles
Crank shaft main shaft bearing cover: -30N·M
Main bearing cover bolt: -61N·M








Continued
Crank shaft shock absorber: -115N·M
Cylinder cover bolt (see Engine/Cylinder Cover-Fixing)
Cylinder cover: -12N·M
Right engine bracket
Fixture: M12 -118N·M
Fixture: M10 -68N·M
Exhaust manifold heat shield bolt: -28N·M

Exhaust manifold set bolt: -23N·M
Intake manifold bolt: -26N·M
Engine oil pressure adjusting bolt: -25N·M
Engine oil filter set bolt: -28N·M
Crankcase oil tray bolt: -31N·M
Engine oil plug: -27N·M
Engine oil pump bracket oil pipe bolt: -12N·M