000 589 29 33 00
Countersupport
Internal extractor
Puller dia. 28-37 mm
000 589 28 33 00
000 589 34 33 00
Workshop equipment
WE58.40-Z-1010-21A | Valve seat turning device |
W05.30-0006-01
1 Use the valve seat ring lathe to cut a radial groove with a ring groove depth (Y) of about 2 to 3 mm in the valve seat ring (11).
Do not cut into the cylinder head with the cutting tool.
W05.30-0011-01
2 Position internal extractor (17) or puller (17) together with countersupport (18) into the radial groove and pull out valve seat ring.
Because of risk of damage to the sealing surface of the cylinder head, place copper plates under the feet of the countersupport (18) (arrows).