{"id":2385,"date":"2023-11-08T20:36:47","date_gmt":"2023-11-08T20:36:47","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2385"},"modified":"2023-11-08T20:36:47","modified_gmt":"2023-11-08T20:36:47","slug":"replacing-valve-stem-seals","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/08\/replacing-valve-stem-seals\/","title":{"rendered":"Replacing valve stem seals"},"content":{"rendered":"

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05\u2014270 Replacing valve stem seals<\/strong><\/div>\n<\/div>\n<\/td>\n
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Valve clearance<\/strong><\/div>\n<\/div>\n<\/td>\n
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Cold engine (ca. 20 \u00b0C)<\/div>\n<\/div>\n<\/td>\n
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Warm engine (60 \u00b0C \u00b1 15\u00b0C)<\/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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1<\/sup>) 0.05 mm more for consistent outside temperatures below \u201420 \u00b0C.<\/div>\n<\/div>\n<\/td>\n
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Tightening torques<\/strong><\/div>\n<\/div>\n<\/td>\n
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Nm<\/strong><\/div>\n<\/div>\n<\/td>\n
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Cylinder head cover bolts and capped nuts<\/div>\n<\/div>\n<\/td>\n
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Cylinder head bots M 12 x 1.5<\/div>\n<\/div>\n<\/td>\n
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Bolts M 8 for camshaft housing to cylinder head and crankcase<\/div>\n<\/div>\n<\/td>\n
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Necked-down screws for camshaft sprockets<\/div>\n<\/div>\n<\/td>\n
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Ball locating ring in chain tensioner<\/div>\n<\/div>\n<\/td>\n
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Depressor for valve spring<\/div>\n<\/div>\n<\/td>\n
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110 589 04 61 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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Impact extractor for bearing pin (basic unit)<\/div>\n<\/div>\n<\/td>\n
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116 589 20 33 00<\/div>\n<\/div>\n<\/td>\n
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Rail to hold down valve springs<\/div>\n<\/div>\n<\/td>\n
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\u00bb11004-7002<\/strong><\/div>\n<\/div>\n<\/div>\n<\/td>\n
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110 589 00 62 00<\/div>\n<\/div>\n<\/td>\n
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05.2-270\/1 F3<\/div>\n<\/div>\n<\/td>\n
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Chain tensioner holder<\/div>\n<\/div>\n<\/td>\n
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110 589 02 31 00<\/div>\n<\/div>\n<\/td>\n
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Assembly mandrel for valve stem seals intake and exhaust 9 mm dia.<\/div>\n
Installation mandrel for exhaust valve stem seals 11 mm dia.<\/div>\n<\/div>\n<\/td>\n
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116 589 00 43 00<\/div>\n<\/div>\n<\/td>\n
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Magnetic lifter for valve collets<\/div>\n<\/div>\n<\/td>\n
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116 589 06 63 00<\/div>\n<\/div>\n<\/td>\n
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Valve adjusting wrench 17 mm<\/div>\n<\/div>\n<\/td>\n
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110 589 01 01 00<\/div>\n<\/div>\n<\/td>\n
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11004-7003<\/div>\n<\/div>\n<\/td>\n
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Note<\/strong><\/div>\n<\/div>\n<\/td>\n
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Remove camshaft housing with camshafts (01\u2014470) and pertinent valve springs (05\u2014250) to replace valve stem seals.<\/div>\n
Valve stem seals are supplied in a repair kit with assembly sleeves.<\/div>\n
The exhaust valve stem seal with 9 mm ID for engines starting April 1978 (emission-controlled engines start\u00ading model year 1980) has a holding bead inside (arrow) Do not mix up with intake valve stem seal without holding bead.<\/div>\n
Valve guides, which are worn at the groove for the valve stem seal, must be replaced.<\/div>\n
Valve stem seals<\/strong><\/div>\n
Repair set 123 586 03 05 (up to April 1978 or up to model year 1980 (@)).<\/div>\n
Repair set 110 586 03 05 (starting April 1978 or starting model year 1980 (usa)).<\/div>\n<\/div>\n<\/td>\n
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Replacing<\/strong><\/div>\n<\/div>\n<\/td>\n
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1 <\/strong>Press off valve stem seals.<\/div>\n
Attention!<\/strong><\/div>\n
Don’t damage valve stem and valve guide.<\/div>\n<\/div>\n<\/td>\n
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05.2-270\/2 F3<\/div>\n<\/div>\n<\/td>\n
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2\u00a0 \u00a0Deburr valve stem at groove (arrow).<\/div>\n
3\u00a0 \u00a0Replace dented valve cones and spring retainers.<\/div>\n
4\u00a0 \u00a0Check Rotocap and replace if necessary.<\/div>\n<\/div>\n<\/td>\n
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5 Lubricate valve stem seals and install with installa\u00adtion mandrel.<\/div>\n
Use assembly sleeve on intake valve.<\/div>\n<\/div>\n<\/td>\n
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6 Install valve springs (05\u2014250) and camshaft hous\u00ading (01-470).<\/div>\n<\/div>\n<\/td>\n
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05.2-270\/3 F3<\/div>\n<\/div>\n<\/td>\n
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    05\u2014270 Replacing valve stem seals   Valve clearance Cold engine (ca. 20 \u00b0C) Warm engine (60 \u00b0C \u00b1 15\u00b0C)   Intake 0.101 0.151   Exhaust 0.25 0.30   1) 0.05 mm more for consistent outside temperatures below \u201420 \u00b0C.   Tightening torques Nm Cylinder head cover bolts and capped nuts 5 Cylinder head bots M 12 x 1.5 100 Bolts M 8 for camshaft housing to cylinder head and crankcase 25 Necked-down screws for camshaft sprockets 80 Ball locating ring in chain tensioner 25 Special tools     Depressor for valve spring 110 589 04 61 00   Socket 27 mm, 1\/2″ square for rotating engine 001 589 65 09 00   Impact extractor for bearing pin (basic unit) 116 589 20 33 00     Rail to hold down valve springs \u00bb11004-7002 110 589 00 62 00   05.2-270\/1 F3       Chain tensioner holder 110 589 02 31 00   Assembly mandrel for valve stem seals intake and exhaust 9 mm dia. Installation mandrel for exhaust valve stem seals 11 mm dia. 116 589 00 43 00 116 589 01 43 00   Magnetic lifter for valve collets 116 589 06 63 00   Valve adjusting wrench 17 mm 110 589 01 01 00 11004-7003   Note Remove camshaft housing with camshafts (01\u2014470) and pertinent valve springs (05\u2014250) to replace valve stem seals. Valve stem seals are supplied in a repair kit with assembly sleeves. The exhaust valve stem seal with 9 mm ID for engines starting April 1978 (emission-controlled engines start\u00ading model year 1980) has a holding bead inside (arrow) Do not mix up with intake valve stem seal without holding bead. Valve guides, which are worn at the groove for the valve stem seal, must be replaced. Valve stem seals Repair set 123 586 03 05 (up to April 1978 or up to model year 1980 (@)). Repair set 110 586 03 05 (starting April 1978 or starting model year 1980 (usa)).   Replacing 1 Press off valve stem seals. Attention! Don’t damage valve stem and valve guide.   05.2-270\/2 F3       2\u00a0 \u00a0Deburr valve stem at groove (arrow). 3\u00a0 \u00a0Replace dented valve cones and spring retainers. 4\u00a0 \u00a0Check Rotocap and replace if necessary.   5 Lubricate valve stem seals and install with installa\u00adtion mandrel. Use assembly sleeve on intake valve.   6 Install valve springs (05\u2014250) and camshaft hous\u00ading (01-470).   05.2-270\/3 F3        <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[31,27],"tags":[],"class_list":["post-2385","post","type-post","status-publish","format-standard","hentry","category-engine-timing-valve-train","category-m110"],"aioseo_notices":[],"featured_image_src":null,"author_info":{"display_name":"mackuz","author_link":"https:\/\/mbci.mackuz.ovh\/index.php\/author\/mackuz\/"},"_links":{"self":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/comments?post=2385"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2385\/revisions"}],"predecessor-version":[{"id":2386,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2385\/revisions\/2386"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}