Operation Manual

Table Of Contents

Job Card No.:

Engine:

Filing No.:

Valve Seat Ring

Removal / Refitment

0178-08-10 1854

01.13.01 Page 3 of 3

S/BVM 628

Fig. 4

Fitting the Cooled Valve-Seat Ring - fig. 4 -

Apply Deutz DW 57 to the entire seat ring receiving

bore in cylinder head and to sealing surfaces of the

valve-seat ring. Check that coolant passage bet-

ween cylinder head and valve-seat ring is not blok-

ked. Push seat ring into cylinder head.

Mount threaded spindle (1), together with hex. nut

(6), washer (5), bearing (4) and bush (3).

Screw on sleeve (2). By tightening hex. nut (6), the

valve-seat ring is pulled in up to the axial contact

surface.

A repetition of the pulling-in operation results in a

certain enlargement of the receiving bore in the cylin-

der head, so that an oversize ring may then be

necessary.

After a waiting period of at least 1 hour, check

cylinder head for leaks by subjecting to a pressure

test with coolant (see Section 6.4) for at least 5

minutes.

Test-pressure: 7 bar.

After Fitting:

Grind-in valve cone on the valve-seat (Job Card

01.07.01).