{"id":2377,"date":"2023-11-08T20:29:12","date_gmt":"2023-11-08T20:29:12","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2377"},"modified":"2023-11-08T20:29:12","modified_gmt":"2023-11-08T20:29:12","slug":"grinding-camshaft-bearing-journals","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/08\/grinding-camshaft-bearing-journals\/","title":{"rendered":"Grinding camshaft bearing journals"},"content":{"rendered":"

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05\u2014225 Grinding camshaft bearing journals<\/strong><\/div>\n<\/div>\n<\/td>\n
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Data<\/strong><\/div>\n<\/div>\n<\/td>\n
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Mean roughness of camshaft bearing journal<\/div>\n<\/div>\n<\/td>\n
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0.005<\/div>\n<\/div>\n<\/td>\n
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Deviation of camshaft bearing journal from true when mounted at camshaft sprocket seat and rear camshaft bearing journal<\/div>\n<\/div>\n<\/td>\n
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0.030<\/div>\n<\/div>\n<\/td>\n
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Deviation of camshaft bearing journal from true<\/div>\n<\/div>\n<\/td>\n
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0.010<\/div>\n<\/div>\n<\/td>\n
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Bearing points (fig., refer to note)<\/div>\n<\/div>\n<\/td>\n
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1,9<\/div>\n<\/div>\n<\/td>\n
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3,10,11 4,5,12,13 6,7,14,15 8<\/div>\n<\/div>\n<\/td>\n
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bearing dia\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 38.016 50.066<\/u> 50.016 51.519 53.019 54.019<\/u><\/div>\n
38.000 50.050 50.000 51.500 53.000 54.000<\/div>\n<\/div>\n<\/td>\n
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Standard dimension<\/div>\n<\/div>\n<\/td>\n
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journal dia.<\/div>\n<\/div>\n<\/td>\n
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23.993 49.950 49.950 51.440 52.940 53.940<\/div>\n<\/div>\n<\/td>\n
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23.980<\/div>\n<\/div>\n<\/td>\n
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49.934 49.934<\/div>\n<\/div>\n<\/td>\n
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51.421<\/div>\n<\/div>\n<\/td>\n
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52.921<\/div>\n<\/div>\n<\/td>\n
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53.921<\/div>\n<\/div>\n<\/td>\n
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Intermediate stage \u20140.1 mm (exchange engines)<\/div>\n<\/div>\n<\/td>\n
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bearing dia.<\/div>\n<\/div>\n<\/td>\n
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49.966 49.916 51.419 <\/u>49.950 49.900 51.400<\/div>\n<\/div>\n<\/td>\n
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52.919 53.919 <\/u>52.900 53.900<\/div>\n<\/div>\n<\/td>\n
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journal dia.<\/div>\n<\/div>\n<\/td>\n
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49.850<\/u> 49.850 51.340 52.840 53.840 <\/u>49.834 49.834 51.321 52.821 53.821<\/div>\n<\/div>\n<\/td>\n
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1st repair stage -0.25 mm<\/div>\n<\/div>\n<\/td>\n
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bearing dia.<\/div>\n<\/div>\n<\/td>\n
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49.816 49.765 51.269<\/u> 52.769 53.769 <\/u>49.800 49.750 51.250 52.750 53.750<\/div>\n<\/div>\n<\/td>\n
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journal dia.<\/div>\n<\/div>\n<\/td>\n
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49.700 <\/u>49.684<\/div>\n<\/div>\n<\/td>\n
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49.700 <\/u>49.684<\/div>\n<\/div>\n<\/td>\n
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51.190 <\/u>51.171<\/div>\n<\/div>\n<\/td>\n
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52.690 <\/u>52.671<\/div>\n<\/div>\n<\/td>\n
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53.690 <\/u>53.671<\/div>\n<\/div>\n<\/td>\n
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2nd repair stage \u20140.5 mm<\/div>\n<\/div>\n<\/td>\n
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bearing dia.<\/div>\n<\/div>\n<\/td>\n
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49.566 <\/u>49.550<\/div>\n<\/div>\n<\/td>\n
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49.516 <\/u>49.500<\/div>\n<\/div>\n<\/td>\n
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51.019 <\/u>51.000<\/div>\n<\/div>\n<\/td>\n
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52.519 <\/u>52.500<\/div>\n<\/div>\n<\/td>\n
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53.519 <\/u>53.500<\/div>\n<\/div>\n<\/td>\n
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journal dia.<\/div>\n<\/div>\n<\/td>\n
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49.450 49.450<\/div>\n<\/div>\n<\/td>\n
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50.940 52.440 53.440 <\/u>50.921 52.421 53.421<\/div>\n<\/div>\n<\/td>\n
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49.434<\/div>\n<\/div>\n<\/td>\n
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49.434<\/div>\n<\/div>\n<\/td>\n
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Camshaft bearing play<\/div>\n<\/div>\n<\/td>\n
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radial<\/div>\n<\/div>\n<\/td>\n
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0.057 0.124<\/div>\n<\/div>\n<\/td>\n
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0.100 0.132<\/div>\n<\/div>\n<\/td>\n
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0.050 0.082<\/div>\n<\/div>\n<\/td>\n
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0.060 <\/u>0.098<\/div>\n<\/div>\n<\/td>\n
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0.060 0.098<\/div>\n<\/div>\n<\/td>\n
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0.060 0.098<\/div>\n<\/div>\n<\/td>\n
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axial<\/div>\n<\/div>\n<\/td>\n
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0.050 <\/u>0.120<\/div>\n<\/div>\n<\/td>\n
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Sleeve for bearing a<\/div>\n<\/div>\n<\/td>\n
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OD<\/div>\n<\/div>\n<\/td>\n
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37.950<\/div>\n<\/div>\n<\/td>\n
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ID<\/div>\n<\/div>\n<\/td>\n
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24.013<\/div>\n<\/div>\n<\/td>\n
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37.925<\/div>\n<\/div>\n<\/td>\n
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24.000<\/div>\n<\/div>\n<\/td>\n
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Special tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Dial gauge holder for camshaft axial play<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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136 589 04 21 00<\/div>\n<\/div>\n<\/td>\n
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05.2-225\/1 F3<\/div>\n<\/div>\n<\/td>\n
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Note<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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For camshafts with reground bearing journals, cam\u00ad<\/strong>shaft housings with repair stages \u20140.25 mm and <\/strong>\u20140.50 mm <\/strong>are available.<\/div>\n
The bearing journals are not hardened.<\/div>\n<\/div>\n<\/td>\n
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Some exchange engines are delivered with camshaft bearings in intermediate and repair sizes. This means that a standard camshaft cannot be installed in this camshaft housing, since the bearing journals are larger in diameter than the bearings.<\/div>\n
Also refer to coordination camshaft housing and camshafts (01-471).<\/div>\n<\/div>\n<\/td>\n
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Chamfer bearing journals after grinding (see sketch for dimensions).<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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Checking axial play<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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1 <\/strong>Bolt dial gauge holder to camshaft housing.<\/div>\n<\/div>\n<\/td>\n
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2 Clamp dial gauge with a preload of about 3 mm.<\/div>\n<\/div>\n<\/td>\n
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3 Press back camshaft and set needle at 0.<\/div>\n<\/div>\n<\/td>\n
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4 Press camshaft forward and read axial play.<\/div>\n<\/div>\n<\/td>\n
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05.2-225\/2 F3<\/div>\n<\/div>\n<\/td>\n
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Note: <\/strong>If the end play is too small, grind spacing sleeve or driver at face B as required.<\/div>\n
If the axial play is too large, the spacer or dog must be ground at collar A.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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1<\/div>\n<\/div>\n<\/td>\n
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2<\/div>\n<\/div>\n<\/td>\n
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expansion bolts 2nd version<\/div>\n<\/div>\n<\/td>\n
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4<\/div>\n<\/div>\n<\/td>\n
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Spacer<\/div>\n<\/div>\n<\/td>\n
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1a<\/div>\n<\/div>\n<\/td>\n
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2<\/div>\n<\/div>\n<\/td>\n
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bolts 1st version (not valid)<\/div>\n<\/div>\n<\/td>\n
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5<\/div>\n<\/div>\n<\/td>\n
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2 camshaft sprockets<\/div>\n<\/div>\n<\/td>\n
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2<\/div>\n<\/div>\n<\/td>\n
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2<\/div>\n<\/div>\n<\/td>\n
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washers 2nd version<\/div>\n<\/div>\n<\/td>\n
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6<\/div>\n<\/div>\n<\/td>\n
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2 woodruff keys 4 x 6.5<\/div>\n<\/div>\n<\/td>\n
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2a<\/div>\n<\/div>\n<\/td>\n
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4<\/div>\n<\/div>\n<\/td>\n
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washers 1st version (not valid)<\/div>\n<\/div>\n<\/td>\n
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7<\/div>\n<\/div>\n<\/td>\n
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Exhaust camshaft<\/div>\n<\/div>\n<\/td>\n
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3<\/div>\n<\/div>\n<\/td>\n
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2<\/div>\n<\/div>\n<\/td>\n
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spacers<\/div>\n<\/div>\n<\/td>\n
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8<\/div>\n<\/div>\n<\/td>\n
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Intake camshaft<\/div>\n<\/div>\n<\/td>\n
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05.2-225\/3 F3<\/div>\n<\/div>\n<\/td>\n
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 <\/p>\n","protected":false},"excerpt":{"rendered":"

    05\u2014225 Grinding camshaft bearing journals   Data   Mean roughness of camshaft bearing journal 0.005   Deviation of camshaft bearing journal from true when mounted at camshaft sprocket seat and rear camshaft bearing journal 0.030   Deviation of camshaft bearing journal from true 0.010   Bearing points (fig., refer to note) 1,9 3,10,11 4,5,12,13 6,7,14,15 8   bearing dia\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 38.016 50.066 50.016 51.519 53.019 54.019 38.000 50.050 50.000 51.500 53.000 54.000   Standard dimension   journal dia. 23.993 49.950 49.950 51.440 52.940 53.940 23.980 49.934 49.934 51.421 52.921 53.921   Intermediate stage \u20140.1 mm (exchange engines) bearing dia. 49.966 49.916 51.419 49.950 49.900 51.400 52.919 53.919 52.900 53.900 journal dia. 49.850 49.850 51.340 52.840 53.840 49.834 49.834 51.321 52.821 53.821   1st repair stage -0.25 mm bearing dia. 49.816 49.765 51.269 52.769 53.769 49.800 49.750 51.250 52.750 53.750   journal dia. 49.700 49.684 49.700 49.684 51.190 51.171 52.690 52.671 53.690 53.671   2nd repair stage \u20140.5 mm bearing dia. 49.566 49.550 49.516 49.500 51.019 51.000 52.519 52.500 53.519 53.500 journal dia. 49.450 49.450 50.940 52.440 53.440 50.921 52.421 53.421 49.434 49.434   Camshaft bearing play radial 0.057 0.124 0.100 0.132 0.050 0.082 0.060 0.098 0.060 0.098 0.060 0.098 axial 0.050 0.120   Sleeve for bearing a OD 37.950 ID 24.013 37.925 24.000 Special tool           Dial gauge holder for camshaft axial play 136 589 04 21 00   05.2-225\/1 F3       Note For camshafts with reground bearing journals, cam\u00adshaft housings with repair stages \u20140.25 mm and \u20140.50 mm are available. The bearing journals are not hardened.   Some exchange engines are delivered with camshaft bearings in intermediate and repair sizes. This means that a standard camshaft cannot be installed in this camshaft housing, since the bearing journals are larger in diameter than the bearings. Also refer to coordination camshaft housing and camshafts (01-471).   Chamfer bearing journals after grinding (see sketch for dimensions).   Checking axial play 1 Bolt dial gauge holder to camshaft housing. 2 Clamp dial gauge with a preload of about 3 mm. 3 Press back camshaft and set needle at 0. 4 Press camshaft forward and read axial play.   05.2-225\/2 F3       Note: If the end play is too small, grind spacing sleeve or driver at face B as required. If the axial play is too large, the spacer or dog must be ground at collar A.     1 2 expansion bolts 2nd version 4 Spacer 1a 2 bolts 1st version (not valid) 5 2 camshaft sprockets 2 2 washers 2nd version 6 2 woodruff keys 4 x 6.5 2a 4 washers 1st version (not valid) 7 Exhaust camshaft 3 2 spacers 8 Intake camshaft   05.2-225\/3 F3          <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,27],"tags":[],"class_list":["post-2377","post","type-post","status-publish","format-standard","hentry","category-engine-timing-valve-train","category-m110"],"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