Valve Seat Rings; Valve Guides - Mercedes-Benz Unimog 435 Service Manual

01.8 General
352/352 A
Valve Seat Rings
Cl
i=ffi
A
B UZ01-0019
Exhaust A Inlet B
I
1)
1)
Outside diameter Normal mm 38,080 45,080 45,880
valve seat ring c and d 38,070
45,070
45,870
Repair stage I mm
38,380 45,380 46,180
38,370 45,370 46,170
Repair stage 11 mm
38,580
I
-
45,580
-
38,570 45,570
Bore diameter
Normal mm
38,025 45,025 45,825
in cylinder head c 1 38,000
45,000
45,800
and d 1
Repair stage I
mm
38,325 45,325 46,125
38,300 45,300 46,100
Repair stage 11 mm
38.525
I
-
45,525
-
38,500 45,500
Installation depth in cylinder head e mm
11,20
11,10
Distance between cylinder head face and
b 1 mm
2,6
+
0,2 2,8
+
0,2
valve seat ring
Basic bore in cylinder head
mm
38,000
+
0,025 45,000
+
0,025
Height of valve seat rings
a mm 8,5 - 0,1 8,3 - 0,1
Valve seat ring overlap in cylinder head mm 0,045 to 0,080
Valve Guides
Dislance between valve guide Exhaust inlet
vaive spring seat
a
mm
24 - 0,5
mm
10,022 9,022
10,000 9,000
,
Inside diameter
Length
mm 73 78
~
Normal Repair Repair Repair
stage I stage 11 stage III
mm mm mm mm
Outside diameter 15.046 15,146 15.246 15,546
15,028
15,128
15,228 15,528
Bore in cylinder head 15.018 15,118 15,218 15,518
15,000 15,100 15,200 15,500
Overlap
mm
+
0,010 to
+
0,046
1) Engine model 353.959 from engine end No. 549 882.
1.2/4