{"id":2881,"date":"2023-11-17T23:24:29","date_gmt":"2023-11-17T22:24:29","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2881"},"modified":"2023-11-17T23:24:29","modified_gmt":"2023-11-17T22:24:29","slug":"checking-and-renewing-valve-guides","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/17\/checking-and-renewing-valve-guides\/","title":{"rendered":"Checking and renewing valve guides"},"content":{"rendered":"

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05\u2014285 Checking and renewing valve guides<\/strong><\/div>\n<\/div>\n<\/td>\n
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Valve guide<\/div>\n<\/div>\n<\/td>\n
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Part No.<\/div>\n<\/div>\n<\/td>\n
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Version<\/div>\n<\/div>\n<\/td>\n
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Color code<\/div>\n<\/div>\n<\/td>\n
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OD<\/div>\n<\/div>\n<\/td>\n
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Bore in<\/div>\n
cylinder<\/div>\n
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Overlap<\/div>\n<\/div>\n<\/td>\n
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Valve guide ID<\/div>\n<\/div>\n<\/td>\n
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Length<\/div>\n<\/div>\n<\/td>\n
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Shape of valve guide<\/div>\n<\/div>\n<\/td>\n
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Intake<\/div>\n<\/div>\n<\/td>\n
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621 053 15 29 616 053 00 291<\/sup>)<\/div>\n<\/div>\n<\/td>\n
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Normal dimension<\/div>\n<\/div>\n<\/td>\n
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14.04 14.03<\/div>\n<\/div>\n<\/td>\n
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14.00 14.02<\/div>\n<\/div>\n<\/td>\n
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l 601<\/sup>)<\/strong><\/div>\n<\/div>\n<\/td>\n
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621 053 16 29 616 053 01 291<\/sup>)<\/div>\n<\/div>\n<\/td>\n
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Repair stage<\/div>\n<\/div>\n<\/td>\n
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red<\/div>\n<\/div>\n<\/td>\n
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14.24 14.23<\/div>\n<\/div>\n<\/td>\n
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14.20 14.22<\/div>\n<\/div>\n<\/td>\n
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10.000 <\/u>10.015<\/div>\n<\/div>\n<\/td>\n
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621 053 36 30 616 053 00 301<\/sup>)<\/div>\n<\/div>\n<\/td>\n
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Normal dimension<\/div>\n<\/div>\n<\/td>\n
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+ 0.01 up to + 0.04<\/div>\n<\/div>\n<\/td>\n
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14.04 14.03<\/div>\n<\/div>\n<\/td>\n
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14.00 14.02<\/div>\n<\/div>\n<\/td>\n
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49.5 48.51<\/sup>)<\/strong><\/div>\n<\/div>\n<\/td>\n
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Exhaust<\/div>\n<\/div>\n<\/td>\n
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14.24 14.23<\/div>\n<\/div>\n<\/td>\n
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621 053 37 30 616 053 01 301<\/sup>)<\/div>\n<\/div>\n<\/td>\n
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Repair stage<\/div>\n<\/div>\n<\/td>\n
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red<\/div>\n<\/div>\n<\/td>\n
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14.20 14.22<\/div>\n<\/div>\n<\/td>\n
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3000-3500 N<\/div>\n<\/div>\n<\/td>\n
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Tight fit test pressure<\/div>\n<\/div>\n<\/td>\n
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Wear limit of valve guide ID (measuring point 5 mm above valve guide bottom edge)<\/div>\n<\/div>\n<\/td>\n
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0.20<\/div>\n<\/div>\n<\/td>\n
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M These valve guides are 1 mm shorter (refer to note).<\/div>\n<\/div>\n<\/td>\n
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Special tools1<\/sup>)<\/strong><\/div>\n<\/div>\n<\/td>\n
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Inspection mandrel 10 mm dia.<\/div>\n<\/div>\n<\/td>\n
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615 <\/strong>589 00 21 <\/strong>00<\/div>\n<\/div>\n<\/td>\n
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11004- Mil<\/strong><\/div>\n<\/div>\n<\/td>\n
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Knock-out mandrel 10 mm dia.<\/div>\n<\/div>\n<\/td>\n
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if\u2014t<\/strong><\/div>\n<\/div>\n<\/td>\n
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615 <\/strong>589 01 15 00<\/strong><\/div>\n<\/div>\n<\/td>\n
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11004-6194<\/strong><\/div>\n<\/div>\n<\/td>\n
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Knock-in mandrel 10 mm dia.<\/div>\n<\/div>\n<\/td>\n
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615 589 00 15 <\/strong>00<\/div>\n<\/div>\n<\/td>\n
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Special reamer 0.99 H 7<\/div>\n<\/div>\n<\/td>\n
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11004-619?<\/strong><\/div>\n<\/div>\n<\/td>\n
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000 589 11 53 <\/strong>00<\/div>\n<\/div>\n<\/td>\n
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115 589 00 53 00<\/div>\n<\/div>\n<\/td>\n
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Manual reamer for repair stage 14.2 dia.<\/div>\n<\/div>\n<\/td>\n
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r…..j… .tifflgf<\/div>\n
11004-619ft<\/strong><\/div>\n<\/div>\n<\/td>\n
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’) Same for intake and exhaust.<\/div>\n<\/div>\n<\/td>\n
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05.8-285\/1 F 2<\/div>\n<\/div>\n<\/td>\n
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Note<\/strong><\/div>\n
The valve guides 61 mm or 49.5 mm long have been replaced by valve guides 60 mm or 48.5 mm long.<\/div>\n
In addition to their length, the valve guides are also different with regard to the shape of their grooves (arrows).<\/div>\n<\/div>\n<\/td>\n
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A Valve guide = 61 mm or 49.5 mm long B Valve guide = 60 mm or 48.5 mm long<\/div>\n<\/div>\n<\/td>\n
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1054-8293<\/div>\n<\/div>\n<\/td>\n
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On engine 617.950 (usa) model year 1980 with in\u00adcreased output and on engines 617.951\/952 only the shorter valve guides (B) may be installed in view of the larger valve lift.<\/div>\n<\/div>\n<\/td>\n
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Checking<\/strong><\/div>\n<\/div>\n<\/td>\n
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1\u00a0 \u00a0 Clean valve guide.<\/div>\n
2\u00a0 \u00a0 Measure bore by means of a plug gage or an inter\u00adnal measuring instrument 5 mm above bottom edge of valve guide.<\/div>\n
If the not go end of plug gage can be easily and com\u00adpletely inserted, replace valve guide.<\/div>\n<\/div>\n<\/td>\n
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Renewing<\/strong><\/div>\n<\/div>\n<\/td>\n
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3\u00a0 \u00a0 Force-out valve guide by means of knock-out mandrel.<\/div>\n
4\u00a0 \u00a0Check basic bore in cylinder head for score marks.<\/div>\n
Normally dimensioned valve guides can be inserted without machining basic bore, if the specified over\u00adlap is still available (refer to item 6).<\/div>\n<\/div>\n<\/td>\n
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05.8-285\/2 F 2<\/div>\n<\/div>\n<\/td>\n
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5 When using repair stage valve guides, press respec\u00adtive manual broach through basic bore in cylinder head.<\/div>\n
Pressing of manual broach through basic bore can be performed on a column-type drilling machine or a hydraulic press. An important requirement is that the hand broach is inserted vertically in relation to base of cylinder head. The spindle of the column-type drilling machine or of the hydraulic press should be free of play.<\/div>\n<\/div>\n<\/td>\n
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6 Coat valve guides with tallow and press-in by means of knocking-in mandrel until the dimension between cylinder head parting surface and valve guide underside named on table has been attained.<\/div>\n<\/div>\n<\/td>\n
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7 Check tight fit of valve guide with cylinder head cooled down only.<\/div>\n
Test pressure of tight fit 3500 N.<\/div>\n<\/div>\n<\/td>\n
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8 Check ID of valve guide with plug gage.<\/div>\n<\/div>\n<\/td>\n
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The go end should still slip in.<\/div>\n<\/div>\n<\/td>\n
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The not go end should merely touch.<\/div>\n<\/div>\n<\/td>\n
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05.8-285\/3 F 2<\/div>\n<\/div>\n<\/td>\n
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9\u00a0 \u00a0Slide valve into valve guide.<\/div>\n
If the valve can be slipped in with difficutly only or not at all, ream valve guide by means of reamer.<\/div>\n
10\u00a0 \u00a0Machine (refinish) valve seats (05\u2014291).<\/div>\n<\/div>\n<\/td>\n
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    05\u2014285 Checking and renewing valve guides   Data   Valve guide Part No. Version Color code OD Bore in cylinder head Overlap Valve guide ID Length Shape of valve guide   Intake 621 053 15 29 616 053 00 291) Normal dimension 14.04 14.03 14.00 14.02 l 601) 621 053 16 29 616 053 01 291) Repair stage red 14.24 14.23 14.20 14.22 10.000 10.015 621 053 36 30 616 053 00 301) Normal dimension + 0.01 up to + 0.04 14.04 14.03 14.00 14.02 49.5 48.51) Exhaust 14.24 14.23 621 053 37 30 616 053 01 301) Repair stage red 14.20 14.22 3000-3500 N Tight fit test pressure Wear limit of valve guide ID (measuring point 5 mm above valve guide bottom edge) 0.20   M These valve guides are 1 mm shorter (refer to note).   Special tools1)   Inspection mandrel 10 mm dia.     615 589 00 21 00 11004- Mil   Knock-out mandrel 10 mm dia. if\u2014t   615 589 01 15 00 11004-6194           Knock-in mandrel 10 mm dia.     615 589 00 15 00 Special reamer 0.99 H 7 11004-619?   000 589 11 53 00       115 589 00 53 00 Manual reamer for repair stage 14.2 dia. r…..j… .tifflgf 11004-619ft     ’) Same for intake and exhaust.   05.8-285\/1 F 2       Note The valve guides 61 mm or 49.5 mm long have been replaced by valve guides 60 mm or 48.5 mm long. In addition to their length, the valve guides are also different with regard to the shape of their grooves (arrows). A Valve guide = 61 mm or 49.5 mm long B Valve guide = 60 mm or 48.5 mm long 1054-8293   On engine 617.950 (usa) model year 1980 with in\u00adcreased output and on engines 617.951\/952 only the shorter valve guides (B) may be installed in view of the larger valve lift.   Checking 1\u00a0 \u00a0 Clean valve guide. 2\u00a0 \u00a0 Measure bore by means of a plug gage or an inter\u00adnal measuring instrument 5 mm above bottom edge of valve guide. If the not go end of plug gage can be easily and com\u00adpletely inserted, replace valve guide.   Renewing   3\u00a0 \u00a0 Force-out valve guide by means of knock-out mandrel. 4\u00a0 \u00a0Check basic bore in cylinder head for score marks. Normally dimensioned valve guides can be inserted without machining basic bore, if the specified over\u00adlap is still available (refer to item 6).   05.8-285\/2 F 2       5 When using repair stage valve guides, press respec\u00adtive manual broach through basic bore in cylinder head. Pressing of manual broach through basic bore can be performed on a column-type drilling machine or a hydraulic press. An important requirement is that the hand broach is inserted vertically in relation to base of cylinder head. The spindle of the column-type drilling machine or of the hydraulic press should be free of play.   6 Coat valve guides with tallow and press-in by means of knocking-in mandrel until the dimension between cylinder head parting surface and valve guide underside named on table has been attained.   7 Check tight fit of valve guide with cylinder head cooled down only. Test pressure of tight fit 3500 N.   8 Check ID of valve guide with plug gage.   The go end should still slip in. The not go end should merely touch.   05.8-285\/3 F 2       9\u00a0 \u00a0Slide valve into valve guide. If the valve can be slipped in with difficutly only or not at all, ream valve guide by means of reamer. 10\u00a0 \u00a0Machine (refinish) valve seats (05\u2014291).   05.8-285\/4 F 2        <\/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":[48,44],"tags":[],"class_list":["post-2881","post","type-post","status-publish","format-standard","hentry","category-engine-timing-valves","category-om617"],"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\/2881","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=2881"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2881\/revisions"}],"predecessor-version":[{"id":2882,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2881\/revisions\/2882"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}