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Machine valve seat rings - AR05.30-P-4511AB

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ENGINE 611.960/961/962, 612.961/962/963/965/966/967/990, 613.960/961, 646.951/961, 647.961, 648.961, 651 

Fig 1: Machine Valve Seat Rings Dimension
G09974485Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove valves ENGINE 611.960/961/962, 612.961/962/963/965/966/967/990, 613.960/961, 646.951/961, 647.961, 648.961, 651
ENGINE 611.960 in MODEL
202.133/134/193/194
ENGINE 611.961 in MODEL
210.006/007/206/606
ENGINE 611.962 in MODEL
203.004/006/204/206/706
ENGINE 612.961 in MODEL 210.016/216/616
ENGINE 612.962 in MODEL 203.016/216
ENGINE 612.963 in MODEL 163.113
ENGINE 612.965 in MODEL 463.322/323
ENGINE 612.966 in MODEL 461.302/332/342/345
ENGINE 612.967 in MODEL 209.316
ENGINE 612.990 in MODEL 203.018/218/718
ENGINE 613.960 in MODEL 220.026
ENGINE 613.961 in MODEL 210.026/226
ENGINE 646.951 in MODEL 211.004
ENGINE 646.961 in MODEL 211.006/206/606
ENGINE 647.961 in MODEL 211.016/216/616
ENGINE 648.961 in MODEL 211.023/026/223/226		 AR05.30-P-3511HB
    ENGINE 612.966 in MODEL 461.331 AR05.30-P-3511GLC
    ENGINE 651 in MODEL 166, 172, 204, 207, 212, 218, 221 AR05.30-P-3511CD 
    ENGINE 651 in MODEL 205 AR05.30-P-3511OLD
    ENGINE 651 in MODEL 117, 156, 176, 246 AR05.30-P-3511OLB
2 Check valve guide    
3 Machine valve seats IMPORTANT Pay attention to operating instructions from the tool manufacturer; observe dimensions according to test and adjustment values.  
    Width of valve seat (b) *BE05.30-P-1014-03B 
    Valve seat angle (α) *BE05.30-P-1015-03B 
    Correction angle (γ) *BE05.30-P-1016-03B 
    Radial runout of valve seat
Valve machining, passenger cars/commercial vehicles		 *BE05.30-P-1017-03B 
4 Check valve seat for leaktightness    
5 Measure valve seat width (b) IMPORTANT If required, correct valve seat width (b) with correction angle (γ).  
6 Replace valve, check for leaktightness IMPORTANT Follow the operating instructions provided by the tool manufacturer.  
7 Measure distance of valve stem end to camshaft bearing base IMPORTANT To do this, insert dia. 5 mm round material into the middle of the camshaft bearing base and measure the distance using a vernier caliper with an adequate scale.  
    ENGINE 611, 612.961/962/963/965/966/967, 613
ENGINE 612.990		 *BE01.30-P-1009-02A 
    ENGINE 646.951/961, 647.961
ENGINE 648.961
ENGINE 651		 *BE01.30-P-1002-02E 
8 Measure valve setback to cylinder head ENGINE 611.960/961/962, 612.961/962/963/965/966/967/990, 613.960/961, 646.951/961, 647.961, 648.961 AR05.30-P-4100-01AB
    ENGINE 651
IMPORTANT If the value of the minimum dimension is below the limit, no correct valve clearance compensation is given.		 AR05.30-P-4100-01CD 
    ENGINE 611, 612.961/962/963/965/966/967, 613
ENGINE 612.990		 *BE01.30-P-1008-02A 
    ENGINE 646.951/961, 647.961
ENGINE 648.961
ENGINE 651
Standard tool kit		 *BE01.30-P-1001-02E 
9 Install in the reverse order    
CHECK VALUES FOR CYLINDER HEAD

Number Designation ENGINE 646.951/961/962/963/966, 647.961 ENGINE 648.960/961
BE01.30-P-1001-02E Valve setback (a) with new valves and new valve seat rings Exhaust valve mm 1, 0...1, 4 1, 0...1, 4
Intake valve mm 1, 1...1, 5 1, 1...1, 5
  - -
CHECK VALUES FOR CYLINDER HEAD

Number Designation ENGINE 651
BE01.30-P-1001-02E Valve setback (a) with new valves and new valve seat rings Exhaust valve mm 0, 7...1, 1
Intake valve mm 1, 0...1, 4
  -
CHECK VALUES FOR CYLINDER HEAD

Number Designation ENGINE 646.951/961/962/963/966, 647.961 ENGINE 648.960/961
BE01.30-P-1002-02E Distance from end of valve stem to base of camshaft bearing (T) Exhaust valve mm 21, 8...22, 6 21, 8...22, 6
Intake valve mm 21, 7...22, 5 21, 7...22, 5
  - -
CHECK VALUES FOR CYLINDER HEAD

Number Designation ENGINE 651
BE01.30-P-1002-02E Distance from end of valve stem to base of camshaft bearing (T) Exhaust valve mm 13, 8...14, 6
Intake valve mm 13, 8...14, 6
  -
CHECK VALUES FOR CYLINDER HEAD

Number Designation ENGINE 611, 612.961/962/963/965/966/967, 613 ENGINE 612.990
BE01.30-P-1008-02A Valve setback (a) with new valves and new valve seat rings Exhaust valve mm 1, 0...1, 4 1, 0...1, 4
Intake valve mm 1, 1...1, 5 1, 1...1, 5
Picture AR01.30-P-7162HB AR01.30-P-7162HB
CHECK VALUES FOR CYLINDER HEAD

Number Designation ENGINE 611, 612.961/962/963/965/966/967, 613 ENGINE 612.990
BE01.30-P-1009-02A Distance from end of valve stem to base of camshaft bearing (T) mm 17, 1...17, 9 17, 1...17, 9
  - -
TEST SPECIFICATIONS FOR VALVE SEAT RINGS

Number Designation ENGINE 611, 612.961/962/963/965/966/967/990, 613 ENGINE 646.951/961/962/963/966, 647
BE05.30-P-1014-03B Width of valve seat (b) Inlet mm 1, 0...1, 5 1, 0...1, 5
Outlet mm 1, 0...1, 5 1, 0...1, 5
  - -
TEST SPECIFICATIONS FOR VALVE SEAT RINGS

Number Designation ENGINE 648 ENGINE 651
BE05.30-P-1014-03B Width of valve seat (b) Inlet mm 1, 0...1, 5 0, 9...1, 4
Outlet mm 1, 0...1, 5 1, 0...1, 5
  - -
TEST SPECIFICATIONS FOR VALVE SEAT RINGS

Number Designation ENGINE 611, 612.961/962/963/965/966/967/990, 613 ENGINE 646.951/961/962/963/966, 647
BE05.30-P-1015-03B Valve seat angle (α) Inlet ∠° 45° (-30') 45° (-15')
Outlet ∠° 45° (-30') 45° (-15')
  - -
TEST SPECIFICATIONS FOR VALVE SEAT RINGS

Number Designation ENGINE 648 ENGINE 651
BE05.30-P-1015-03B Valve seat angle (α) Inlet ∠° 45° (-30') 45° (-15')
Outlet ∠° 45° (-30') 45° (-15')
  - -
TEST SPECIFICATIONS FOR VALVE SEAT RINGS

Number Designation ENGINE 611, 612.961/962/963/965/966/967/990, 613 ENGINE 646.951/961/962/963/966, 647
BE05.30-P-1016-03B Correction angle (γ) Inlet ∠° 60 60
Outlet ∠° 60 60
  - -
TEST SPECIFICATIONS FOR VALVE SEAT RINGS

Number Designation ENGINE 648 ENGINE 651
BE05.30-P-1016-03B Correction angle (γ) Inlet ∠° 60 60
Outlet ∠° 60 60
  - -
TEST SPECIFICATIONS FOR VALVE SEAT RINGS

Number Designation ENGINE 611, 612.961/962/963/965/966/967/990, 613 ENGINE 646.951/961/962/963/966, 647
BE05.30-P-1017-03B Radial runout of valve seat Inlet mm 0, 03 0, 05
Outlet mm 0, 03 0, 05
TEST SPECIFICATIONS FOR VALVE SEAT RINGS

Number Designation ENGINE 648 ENGINE 651
BE05.30-P-1017-03B Radial runout of valve seat Inlet mm 0, 03 0, 05
Outlet mm 0, 03 0, 05
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