{"id":2391,"date":"2023-11-08T20:41:13","date_gmt":"2023-11-08T20:41:13","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2391"},"modified":"2023-11-08T20:41:13","modified_gmt":"2023-11-08T20:41:13","slug":"renewal-of-valve-seat-rings","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/08\/renewal-of-valve-seat-rings\/","title":{"rendered":"Renewal of valve seat rings"},"content":{"rendered":"

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05\u2014290 Renewal of valve seat rings<\/strong><\/div>\n<\/div>\n<\/td>\n
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Overlap of valve seat rings in cylinder head<\/div>\n<\/div>\n<\/td>\n
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M Series (except emission-controlled engines) starting April 1978. Emission-controlled engines starting model year 1980. Conventional tools<\/strong><\/div>\n<\/div>\n<\/td>\n
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Plug gauge 9 mm dia. for intake and exhaust valve guide<\/div>\n<\/div>\n<\/td>\n
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Cylinder head clamping device<\/div>\n<\/div>\n<\/td>\n
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Ring seat machining tool<\/div>\n<\/div>\n<\/td>\n
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Valve seat machining tool<\/div>\n<\/div>\n<\/td>\n
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05.2-290\/1 F3<\/div>\n<\/div>\n<\/td>\n
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Exhaust valve seat rings for unleaded fuel with red or blue color dot on inside may be installed only in USA engines starting model year 1975. Starting model year 1980 these valve seat rings are identified by a machined groove (arrow).<\/div>\n<\/div>\n<\/td>\n
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1<\/strong>\u00a0 \u00a0 Unscrew old valve seat ring by means of ring seat machining tool.<\/div>\n
2\u00a0 \u00a0Check valve guides, replacing if necessary (05-285).<\/div>\n<\/div>\n<\/td>\n
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3\u00a0 \u00a0Measure basic bore D1.<\/div>\n
A new standard size valve seat insert can be used, if the specified overlap is given.<\/div>\n
4\u00a0 \u00a0Machine basic bore repair stage D1 with ring seat machining tool in such a manner that bore is just cleaned.<\/div>\n
5\u00a0 \u00a0Measure machined basic bore.<\/div>\n
6\u00a0 \u00a0Provide specified overlap by machining the oversize valve seat inserts.<\/div>\n<\/div>\n<\/td>\n
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05.2-290\/2 F3<\/div>\n<\/div>\n<\/td>\n
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7\u00a0 \u00a0 Heat cylinder head in water to approx. 80 C (176 \u00b0F).<\/div>\n
8\u00a0 \u00a0Undercool valve seat insert with fluid air.<\/div>\n<\/div>\n<\/td>\n
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9 Knock in valve seat insert with a pertinent mandrel.<\/div>\n<\/div>\n<\/td>\n
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10 Machine valve seats (05-291).<\/div>\n<\/div>\n<\/td>\n
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05.2-290\/3 F3<\/div>\n<\/div>\n<\/td>\n
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    05\u2014290 Renewal of valve seat rings   Data   Overlap of valve seat rings in cylinder head 0.08-0.10   Intake Normal dimension Repair stage D 47.10   Rough dimension 48.30   47.09 D1 47.00   Max. up to 48.00   47.01 t   8.60       8.70   H 8.60 8.51   Exhaust Normal dimension Repair stage       Version 1 Version 2 l) Version 1 Version 21) D 40.10 42.10 Rough dimension     40.09 42.09 41.3 43.3   D1 40.00 42.00 max. up to max. up to   40.01 42.01 41.00 43.00   t     10.50           10.60     Exhaust H 10.50 10.39   M Series (except emission-controlled engines) starting April 1978. Emission-controlled engines starting model year 1980. Conventional tools   Plug gauge 9 mm dia. for intake and exhaust valve guide 116 589 08 21 00   Plug gauge 11 mm dia. for exhaust valve guide 116 589 09 21 00 Conventional tools   Cylinder head clamping device e.g. made by Christ, D-6801 Neckarhausen order no. DBK 60-2 Ring seat machining tool e.g. made by Hunger, D-8000 Miinchen size 2, order no. 220.03.110 Valve seat machining tool e.g. made by Hunger, D-8000 Miinchen order no. 236.03.308, type VDSNL 1\/45\/30 Test set for valves e.g. made by Hunger, D-8000 Miinchen order no. 216.93.300   05.2-290\/1 F3       Internal micrometer (range 25\u201460 mm) e.g. made by Mahr, D-7300 Esslingen order No. 844   External micrometer (range 25\u201450 mm) e.g. made by Mahr, D-7300 Esslingen order No. 40 S   Note Exhaust valve seat rings for unleaded fuel with red or blue color dot on inside may be installed only in USA engines starting model year 1975. Starting model year 1980 these valve seat rings are identified by a machined groove (arrow).   Replacing   1\u00a0 \u00a0 Unscrew old valve seat ring by means of ring seat machining tool. 2\u00a0 \u00a0Check valve guides, replacing if necessary (05-285).   3\u00a0 \u00a0Measure basic bore D1. A new standard size valve seat insert can be used, if the specified overlap is given. 4\u00a0 \u00a0Machine basic bore repair stage D1 with ring seat machining tool in such a manner that bore is just cleaned. 5\u00a0 \u00a0Measure machined basic bore. 6\u00a0 \u00a0Provide specified overlap by machining the oversize valve seat inserts.   05.2-290\/2 F3       7\u00a0 \u00a0 Heat cylinder head in water to approx. 80 C (176 \u00b0F). 8\u00a0 \u00a0Undercool valve seat insert with fluid air.   9 Knock in valve seat insert with a pertinent mandrel. 10 Machine valve seats (05-291).   05.2-290\/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-2391","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\/2391","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=2391"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2391\/revisions"}],"predecessor-version":[{"id":2392,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2391\/revisions\/2392"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2391"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2391"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}