{"id":2877,"date":"2023-11-17T23:22:08","date_gmt":"2023-11-17T22:22:08","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2877"},"modified":"2023-11-17T23:22:08","modified_gmt":"2023-11-17T22:22:08","slug":"replacement-of-valve-stem-seals","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/17\/replacement-of-valve-stem-seals\/","title":{"rendered":"Replacement of valve stem seals"},"content":{"rendered":"

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05\u2014270 Replacement of valve stem seals<\/div>\n<\/div>\n<\/td>\n
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Valve clearance<\/strong><\/div>\n<\/div>\n<\/td>\n
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with engine cold (approx. 20<\/div>\n<\/div>\n<\/td>\n
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with engine warm (60 C\u00b115<\/div>\n<\/div>\n<\/td>\n
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Intake<\/div>\n<\/div>\n<\/td>\n
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0.101<\/sup>)<\/div>\n<\/div>\n<\/td>\n
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0.151<\/sup>)<\/div>\n<\/div>\n<\/td>\n
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Exhaust<\/div>\n<\/div>\n<\/td>\n
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0.35<\/div>\n<\/div>\n<\/td>\n
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0.40<\/div>\n<\/div>\n<\/td>\n
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M 0.05 mm higher during lasting outside temperatures below \u201420 \u00b0C.<\/div>\n<\/div>\n<\/td>\n
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Tightening torque<\/strong><\/div>\n<\/div>\n<\/td>\n
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Nm<\/div>\n<\/div>\n<\/td>\n
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Nuts for cylinder head cover<\/div>\n<\/div>\n<\/td>\n
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Special tools<\/strong><\/div>\n<\/div>\n<\/td>\n
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Valve adjusting wrench 14 mm (2 each)<\/div>\n<\/div>\n<\/td>\n
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\"om617<\/div>\n<\/td>\n
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615 589 00 01 00<\/div>\n<\/div>\n<\/td>\n
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Holding wrench for valve spring retainer<\/div>\n<\/div>\n<\/td>\n
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615 589 00 03 00<\/div>\n<\/div>\n<\/td>\n
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Slip gage holder, red<\/div>\n<\/div>\n<\/td>\n
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0.10 mm thick 0.15 mm thick 0.20 mm thick 0.35 mm thick 0.40 mm thick<\/div>\n<\/div>\n<\/td>\n
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617 589 00 40 00<\/div>\n<\/div>\n<\/td>\n
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Slip gage blades<\/div>\n<\/div>\n<\/td>\n
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617 589 00 23 00 617 589 01 23 00 117 589 00 23 00 617 589 03 23 00 617 589 04 23 00<\/div>\n<\/div>\n<\/td>\n
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Assembly mandrel for valve stem seals Intake and exhaust<\/div>\n<\/div>\n<\/td>\n
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617 589 00 43 00<\/div>\n<\/div>\n<\/td>\n
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Socket 27 mm, 1\/2″ square, for rotating engine<\/div>\n<\/div>\n<\/td>\n
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001 589 65 09 00<\/div>\n<\/div>\n<\/td>\n
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Contact handle for rotating engine (component of compression pressure recorder 001 589 46 21 00)<\/div>\n<\/div>\n<\/td>\n
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001 589 46 21 08<\/div>\n<\/div>\n<\/td>\n
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05.8-270\/1 F 2<\/div>\n<\/div>\n<\/td>\n
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Conventional tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Cylinder leak tester<\/div>\n<\/div>\n<\/td>\n
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e.g. made by Bosch, EFAW 210 A made by SUN, CLT 228<\/div>\n<\/div>\n<\/td>\n
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Valve stem seals of intake and exhaust valves are of different design and should not be mixed up. They are differently colored to show difference.<\/div>\n<\/div>\n<\/td>\n
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Intake valve stem seal<\/div>\n<\/div>\n<\/td>\n
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– black<\/strong><\/div>\n<\/div>\n<\/td>\n
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Exhaust valve stem seal \u2014 green<\/div>\n<\/div>\n<\/td>\n
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In addition to oil wiper lip (A), the valve stem seals also have a gas sealing lip (8).<\/div>\n<\/div>\n<\/td>\n
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A Oil wiper lip B Gas sealing lip<\/div>\n<\/div>\n<\/td>\n
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Renewing<\/strong><\/div>\n<\/div>\n<\/td>\n
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1\u00a0 \u00a0 Remove rocker arms with rocker arm brackets (05-235).<\/div>\n
2\u00a0 \u00a0 Remove valve springs (05\u2014250).<\/div>\n
3\u00a0 \u00a0 Force off valve stem seals with a screwdriver or pull off with pliers.<\/div>\n
Attention!<\/strong><\/div>\n
Do not damage valve stem and valve guide.<\/div>\n<\/div>\n<\/td>\n
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05.8-270\/2<\/div>\n<\/div>\n<\/td>\n
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4\u00a0 \u00a0 Lubricate new valve stem seals and mount by means of assembly mandrel.<\/div>\n
For this purpose, be sure to place an assembly sleeve on valve stem.<\/div>\n
5\u00a0 \u00a0 Install valve springs (05\u2014250).<\/div>\n
6\u00a0 \u00a0 Install rocker arms with rocker arm bearing brackets (05-235).<\/div>\n<\/div>\n<\/td>\n
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7 Adjust valve clearance (05\u2014210).<\/div>\n<\/div>\n<\/td>\n
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05.8-270\/3 F 2<\/div>\n<\/div>\n<\/td>\n
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    05\u2014270 Replacement of valve stem seals   Valve clearance with engine cold (approx. 20 with engine warm (60 C\u00b115   Intake 0.101) 0.151)   Exhaust 0.35 0.40   M 0.05 mm higher during lasting outside temperatures below \u201420 \u00b0C.   Tightening torque Nm Nuts for cylinder head cover 15 Special tools     Valve adjusting wrench 14 mm (2 each) 615 589 00 01 00 Holding wrench for valve spring retainer 615 589 00 03 00 Slip gage holder, red 0.10 mm thick 0.15 mm thick 0.20 mm thick 0.35 mm thick 0.40 mm thick 617 589 00 40 00 Slip gage blades 617 589 00 23 00 617 589 01 23 00 117 589 00 23 00 617 589 03 23 00 617 589 04 23 00 Assembly mandrel for valve stem seals Intake and exhaust 617 589 00 43 00 Socket 27 mm, 1\/2″ square, for rotating engine 001 589 65 09 00 Contact handle for rotating engine (component of compression pressure recorder 001 589 46 21 00) 001 589 46 21 08   05.8-270\/1 F 2       Conventional tool   Cylinder leak tester e.g. made by Bosch, EFAW 210 A made by SUN, CLT 228   Note   Valve stem seals of intake and exhaust valves are of different design and should not be mixed up. They are differently colored to show difference.   Intake valve stem seal – black   Exhaust valve stem seal \u2014 green   In addition to oil wiper lip (A), the valve stem seals also have a gas sealing lip (8). A Oil wiper lip B Gas sealing lip   Renewing 1\u00a0 \u00a0 Remove rocker arms with rocker arm brackets (05-235). 2\u00a0 \u00a0 Remove valve springs (05\u2014250). 3\u00a0 \u00a0 Force off valve stem seals with a screwdriver or pull off with pliers. Attention! Do not damage valve stem and valve guide.   05.8-270\/2       4\u00a0 \u00a0 Lubricate new valve stem seals and mount by means of assembly mandrel. For this purpose, be sure to place an assembly sleeve on valve stem. 5\u00a0 \u00a0 Install valve springs (05\u2014250). 6\u00a0 \u00a0 Install rocker arms with rocker arm bearing brackets (05-235).   7 Adjust valve clearance (05\u2014210).   05.8-270\/3 F 2        <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,44],"tags":[],"class_list":["post-2877","post","type-post","status-publish","format-standard","hentry","category-engine-timing-valves","category-om617"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t