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