{"id":2331,"date":"2023-11-08T19:36:35","date_gmt":"2023-11-08T19:36:35","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2331"},"modified":"2023-11-08T19:36:43","modified_gmt":"2023-11-08T19:36:43","slug":"removal-and-installation-of-camshaft-housing","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/08\/removal-and-installation-of-camshaft-housing\/","title":{"rendered":"Removal and installation of camshaft housing"},"content":{"rendered":"

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01\u2014470 Removal and installation of camshaft housing<\/strong><\/div>\n<\/div>\n<\/td>\n
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Valve clearance<\/div>\n<\/div>\n<\/td>\n
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Cold engine (ca.<\/div>\n<\/div>\n<\/td>\n
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20\u00b0C)<\/strong><\/div>\n<\/div>\n<\/td>\n
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Warm engine (60\u00b0C \u00b1<\/div>\n<\/div>\n<\/td>\n
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Intake<\/div>\n<\/div>\n<\/td>\n
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Exhaust<\/div>\n<\/div>\n<\/td>\n
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) 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<\/div>\n<\/div>\n<\/td>\n
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Cylinder head bolts 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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Expansion bolt 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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Valve adjusting screw<\/div>\n<\/div>\n<\/td>\n
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20-40<\/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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Level control pump to camshaft housing<\/div>\n<\/div>\n<\/td>\n
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Rocker arm removal and installation tool<\/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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Rigid chain tensioner<\/div>\n<\/div>\n<\/td>\n
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„WJiWiiMIWiirii<\/div>\n
11004-7006<\/strong><\/div>\n<\/div>\n<\/td>\n
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110 589 03 31 00<\/div>\n<\/div>\n<\/td>\n
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Chain tensioner holder<\/div>\n<\/div>\n<\/td>\n
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Bearing pin impact extractor (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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M 6 x 50 bolt for impact extractor<\/div>\n<\/div>\n<\/td>\n
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11001-6366<\/strong><\/div>\n<\/div>\n<\/td>\n
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Holding wrench for camshafts<\/div>\n<\/div>\n<\/td>\n
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11004-7004<\/strong><\/div>\n<\/div>\n<\/td>\n
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01.2-470\/1 F3<\/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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Socket<\/div>\n<\/div>\n<\/td>\n
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27 mm<\/div>\n<\/div>\n<\/td>\n
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to turn<\/div>\n<\/div>\n<\/td>\n
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engine<\/div>\n<\/div>\n<\/td>\n
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Camshaft housing may only be removed after engine is cold.<\/div>\n
The camshaft housing must be removed to remove the camshafts and valve springs or to replace the valve seals.<\/div>\n<\/div>\n<\/td>\n
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Attention!<\/strong><\/div>\n
On exchange engines starting unit no. 496.861 (start\u00ading October 1977) 9 cylinder head screws with a length <\/strong>of 150 mm <\/strong>are used instead of 145 mm in combination with camshaft housings which are countersunk by 5 mm at the 9 bolt head supporting points 2, 3, 5,8, 10, 11, 12, 13 and 14. These cylinder head bolts must be installed together with a washer part no. 186 990 09 40 (5 mm high), since otherwise the thread lugs in cylinder crankcase may be forced off.<\/div>\n<\/div>\n<\/td>\n
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For engines with CIS, use camshaft housing with lug for attaching air cleaner (arrow).<\/div>\n
Camshaft housings with repair stages are available<\/div>\n
for camshaft with reground bearing journals (01\u2014471<\/strong>).<\/div>\n
Exchange engines are in part supplied with camshaft bearing intermediate stages and repair stages (01\u2014471).<\/strong><\/div>\n
Also refer to 01\u2014471, association camshaft housing and camshafts.<\/div>\n<\/div>\n<\/td>\n
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01.2-470\/2 F3<\/div>\n<\/div>\n<\/td>\n
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Removal<\/strong><\/div>\n
1<\/strong>\u00a0 \u00a0 Remove pressure oil pump of models with level control and place to one side without disconnecting the lines. This requires loosening only those bolts marked with an arrow.<\/div>\n
2\u00a0 \u00a0Remove compressor of models with an air condition\u00ader.<\/div>\n<\/div>\n<\/td>\n
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3 Remove vacuum pump of models in USA version.<\/div>\n<\/div>\n<\/td>\n
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4 Drain coolant from radiator and remove upper water hose from engine to radiator. Remove cylinder head cover.<\/div>\n<\/div>\n<\/td>\n
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Radiator drain plug of type 123.<\/div>\n<\/div>\n<\/td>\n
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5 Unscrew right cover (arrow) on front of camshaft housing.<\/div>\n<\/div>\n<\/td>\n
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6 Remove all spring clamps with a wrench socket.<\/div>\n<\/div>\n<\/td>\n
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7 Remove all rocker arms with removal and installa\u00adtion tool.<\/div>\n<\/div>\n<\/td>\n
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8 Counterhold only the right camshaft (exhaust) with the holding wrench and loosen the camshaft sprocket mounting expansion bolt.<\/div>\n<\/div>\n<\/td>\n
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9 Position piston 1 at ignition TDC and both camshafts at marks.<\/div>\n
This requires turning the crankshaft with the combination tool.<\/div>\n
Attention!<\/strong><\/div>\n
Do not turn engine at the mounting bolts of the cam\u00adshaft sprockets. Don’t turn engine in reverse direction <\/strong>of rotation.<\/div>\n<\/div>\n<\/td>\n
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10 Remove chain tensioner and pressure spring (05-310).<\/div>\n<\/div>\n<\/td>\n
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11 Remove sliding rail in camshaft housing. This re\u00adquires knocking out bearing pins with an impact extractor.<\/div>\n<\/div>\n<\/td>\n
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12\u00a0 \u00a0 Push back righthand camshaft and remove cam\u00adshaft sprocket.<\/div>\n
13\u00a0 \u00a0Guide camshaft into bearings again. Unscrew M 8 bolts and cylinder head bolts in reverse sequence of tightening.<\/div>\n
Do not loosen the 5 cylinder head bolts positioned deeper (arrows) and the 2 M 8 bolts (arrows).<\/strong><\/div>\n<\/div>\n<\/td>\n
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14 <\/strong>Remove camshaft housing with camshafts.<\/div>\n<\/div>\n<\/td>\n
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01.2-470\/5 F3<\/div>\n<\/div>\n<\/td>\n
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15\u00a0 \u00a0 Clean mating surface on cylinder head and cam\u00adshaft housing to remove grease and install sheet metal <\/strong>foil, part number 110 016 06 80, <\/strong>without a sealing compound.<\/div>\n
16\u00a0 \u00a0 Install camshaft housing.<\/div>\n<\/div>\n<\/td>\n
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K>5 -12 589<\/strong><\/div>\n<\/div>\n<\/td>\n
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17 Lubricate threads and cylinder head surfaces of cylinder head bolts before installation.<\/div>\n
Attention!<\/strong><\/div>\n
Since July of 1974 the clearance on the camshaft housing for 22 mm dia. washer <\/strong>of cylinder head bolt No. 14 has been extended. Use the former 20 mm dia. washer (arrow) on former camshaft housings.<\/div>\n<\/div>\n<\/td>\n
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18 Tighten cylinder head bolts in steps in the sequen\u00adce of tightening.<\/div>\n
1st step: to 70 Nm (7 kpm) starting with bolt No. 2.<\/div>\n<\/div>\n<\/td>\n
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2nd step: all cylinder head bolts to 110 <\/strong>Nm starting with bolt No. 1. This requires first loosening the five cylinder head bolts 1, 4, 6, 7 and 9 located deeper separately <\/strong>somewhat.<\/div>\n
Tighten the M 8 bolts from inside to outside to 25 Nm.<\/div>\n
Attention!<\/strong><\/div>\n
After tightening all bolts, it must be possible to turn <\/strong>both camshafts by hand.<\/strong><\/div>\n<\/div>\n<\/td>\n
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19 Install right camshaft sprocket making sure that the adjustment marks of both camshafts align when the crankshaft is at TDC.<\/div>\n<\/div>\n<\/td>\n
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Attention!<\/strong><\/div>\n
When the vibration damper of an engine has a ,,0\/0″ mark for BDC in addition to TDC, the TDC mark is next to the pin in the vibration damper.<\/div>\n<\/div>\n<\/td>\n
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20 Install sliding rail so that the timing chain cannot jump.<\/div>\n<\/div>\n<\/td>\n
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21\u00a0 \u00a0 Install ,,rigid” chain.tensioner and tighten by hand.<\/div>\n
Attention!<\/strong><\/div>\n
If camshaft housing has been ground, the timing must be adjusted.<\/div>\n
22\u00a0 \u00a0 Lubricate spacers with engine oil and slide them into camshaft housing.<\/div>\n<\/div>\n<\/td>\n
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1\u00a0 \u00a0Spacer 2nd version without lubrication groove (for pressure oil pump and vacuum pump 2nd version)<\/div>\n
2\u00a0 Washer<\/div>\n
3\u00a0 \u00a0Expansion bolt<\/div>\n
4\u00a0 \u00a0Dog (for pressure oil pump and vacuum pump 2nd version)<\/div>\n
5\u00a0 \u00a0Dog (for vacuum pump 1st version)<\/div>\n
6\u00a0 \u00a0Dog 1st version (for oil pump)<\/div>\n
7\u00a0 Spacer 1st version with lubrication groove A = 4.7 mm for vacuum pump 1st version<\/div>\n
A = 8.3 mm for pressure oil pump and vacuum pump 2nd version<\/div>\n
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23 Torque expansion bolt for camshaft sprocket to 80 Nm (8 kpm), counterholding camshaft with the holding wrench.<\/div>\n
Note: <\/strong>Washer (2) with 30 mm OD is not fitting into spacing sleeve for vacuum pump on USA vehicles up to January 1973. In such a case, machine OD of washer (2) down by approx. 1 mm.<\/div>\n<\/div>\n<\/td>\n
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24 Position chain tensioner for installation and in\u00adstall. Also install pressure spring (05\u2014310).<\/div>\n<\/div>\n<\/td>\n
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Chain tensioner in installation position<\/div>\n<\/div>\n<\/td>\n
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25\u00a0 \u00a0Install cover on front of camshaft housing and in\u00adstall level control pump or vacuum pump with gaskets.<\/div>\n
26\u00a0 \u00a0 Install rocker arms (05-230).<\/div>\n<\/div>\n<\/td>\n
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27\u00a0 \u00a0 Adjust valve clearance (05-210).<\/div>\n
28\u00a0 \u00a0Complete engine.<\/div>\n
Note: <\/strong>If the camshaft housing has been faced, read\u00adjust timing (05\u2014215).<\/div>\n<\/div>\n<\/td>\n
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    01\u2014470 Removal and installation of camshaft housing   Data   Valve clearance Cold engine (ca. 20\u00b0C) Warm engine (60\u00b0C \u00b1 15\u00b0C) Intake 0.10′)   0.15′)   Exhaust 0.25   0.30     ) 0.05 mm more for consistent outside temperatures below \u201420\u00b0C.   Tightening torques Nm Cylinder head bolts M 12 x 1.5 110 Bolts M 8 for camshaft housing to cylinder head and crankcase 25 Expansion bolt for camshaft sprockets 80 Ball locating ring in chain tensioner 25 Valve adjusting screw 20-40 Cylinder head cover bolts and capped nuts 5 Level control pump to camshaft housing 9 Special tools     Rocker arm removal and installation tool 110 589 04 61 00   Rigid chain tensioner „WJiWiiMIWiirii 11004-7006 110 589 03 31 00   Chain tensioner holder 110 589 02 31 00   Bearing pin impact extractor (basic unit) 116 589 20 33 00   M 6 x 50 bolt for impact extractor 11001-6366   116 589 01 34 00         Holding wrench for camshafts   11004-7004 116 589 01 01 00   01.2-470\/1 F3       Valve adjusting wrench 17 mm 110 589 01 01 00   Socket 27 mm to turn engine       001 589 65 09 00 10 mm wrench socket 1\/2″ square, 140 mm long \u25a0J t 000 589 05 07 00     Note   Camshaft housing may only be removed after engine is cold. The camshaft housing must be removed to remove the camshafts and valve springs or to replace the valve seals.   105-8003   Attention! On exchange engines starting unit no. 496.861 (start\u00ading October 1977) 9 cylinder head screws with a length of 150 mm are used instead of 145 mm in combination with camshaft housings which are countersunk by 5 mm at the 9 bolt head supporting points 2, 3, 5,8, 10, 11, 12, 13 and 14. These cylinder head bolts must be installed together with a washer part no. 186 990 09 40 (5 mm high), since otherwise the thread lugs in cylinder crankcase may be forced off.   For engines with CIS, use camshaft housing with lug for attaching air cleaner (arrow). Camshaft housings with repair stages are available for camshaft with reground bearing journals (01\u2014471). Exchange engines are in part supplied with camshaft bearing intermediate stages and repair stages (01\u2014471). Also refer to 01\u2014471, association camshaft housing and camshafts.   01.2-470\/2 F3         Removal 1\u00a0 \u00a0 Remove pressure oil pump of models with level control and place to one side without disconnecting the lines. This requires loosening only those bolts marked with an arrow. 2\u00a0 \u00a0Remove compressor of models with an air condition\u00ader.   3 Remove vacuum pump of models in USA version.   4 Drain coolant from radiator and remove upper water hose from engine to radiator. Remove cylinder head cover. Radiator drain plug of type 123.   5 Unscrew right cover (arrow) on front of camshaft housing.   01.2-470\/3 F3       6 Remove all spring clamps with a wrench socket.   7 Remove all rocker arms with removal and installa\u00adtion tool.   8 Counterhold only the right camshaft (exhaust) with the holding wrench and loosen the camshaft sprocket mounting expansion bolt.   9 Position piston 1 at ignition TDC and both camshafts at marks. This requires turning the crankshaft with the combination tool. Attention! Do not turn engine at the mounting bolts of the cam\u00adshaft sprockets. Don’t turn engine in reverse direction of rotation.   01.2-470\/4 F3       10 Remove chain tensioner and pressure spring (05-310).   11 Remove sliding rail in camshaft housing. This re\u00adquires knocking out bearing pins with an impact extractor.   12\u00a0 \u00a0 Push back righthand camshaft and remove cam\u00adshaft sprocket. 13\u00a0 \u00a0Guide camshaft into bearings again. Unscrew M 8 bolts and cylinder head bolts in reverse sequence of tightening. Do not loosen the 5 cylinder head bolts positioned deeper (arrows) and the 2 M 8 bolts (arrows).   14 Remove camshaft housing with camshafts.     105-8003   01.2-470\/5 F3       Installation   15\u00a0 \u00a0 Clean mating surface on cylinder head and cam\u00adshaft housing to remove grease and install sheet metal foil, part number 110 016 06 80, without a sealing compound. 16\u00a0 \u00a0 Install camshaft housing.   K>5 -12 589   17 Lubricate threads and cylinder head surfaces of cylinder head bolts before installation. Attention! Since July of 1974 the clearance on the camshaft housing for 22 mm dia. washer of cylinder head bolt No. 14 has been extended. Use the former 20 mm dia. washer (arrow) on former camshaft housings.   18 Tighten cylinder head bolts in steps in the sequen\u00adce of tightening. 1st step: to 70 Nm (7 kpm) starting with bolt No. 2.   2nd step: all cylinder head bolts to 110 Nm starting with bolt No. 1. This requires first loosening the five cylinder head bolts 1, 4, 6, 7 and 9 located deeper separately somewhat. Tighten the M 8 bolts from inside to outside to 25 Nm. Attention! After tightening all bolts, it must be possible to turn both camshafts by hand.   01.2-470\/6 F3       19 Install right camshaft sprocket making sure that the adjustment marks of both camshafts align when the crankshaft is at TDC.   Attention! When the vibration damper of an engine has a ,,0\/0″ mark for BDC in addition to TDC, the TDC mark is next to the pin in the vibration damper. 1 TDC mark   20 Install sliding rail so that the timing chain cannot jump.   21\u00a0 \u00a0 Install ,,rigid” chain.tensioner and tighten by hand. Attention! If camshaft housing has been ground, the timing must be adjusted. 22\u00a0 \u00a0 Lubricate spacers with engine oil and slide them into camshaft housing.   01.2-470\/7 F3       1\u00a0 \u00a0Spacer 2nd version without lubrication groove (for pressure oil pump and vacuum pump 2nd version) 2\u00a0 Washer 3\u00a0 \u00a0Expansion bolt 4\u00a0 \u00a0Dog (for pressure oil pump and vacuum pump 2nd version) 5\u00a0 \u00a0Dog (for vacuum pump 1st version) 6\u00a0 \u00a0Dog 1st version (for oil pump) 7\u00a0 Spacer 1st version with lubrication groove A = 4.7 mm for vacuum pump 1st version A = 8.3 mm for pressure oil pump and vacuum pump 2nd version 8\u00a0 Spring washers (not valid) 9\u00a0 \u00a0Mounting bolt (not valid)   23 Torque expansion bolt for camshaft sprocket to 80 Nm (8 kpm), counterholding camshaft with the holding wrench. Note: Washer (2) with 30 mm OD is not fitting into spacing sleeve for vacuum pump on USA vehicles up to January 1973. In such a case, machine OD of washer (2) down by approx. 1 mm.   24 Position chain tensioner for installation and in\u00adstall. Also install pressure spring (05\u2014310). Chain tensioner in installation position   25\u00a0 \u00a0Install cover on front of camshaft housing and in\u00adstall level control pump or vacuum pump with gaskets. 26\u00a0 \u00a0 Install rocker arms (05-230).   01.2-470\/8 F3         27\u00a0 \u00a0 Adjust valve clearance (05-210). 28\u00a0 \u00a0Complete engine. Note: If the camshaft housing has been faced, read\u00adjust timing (05\u2014215).   01.2-470\/9 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":[29,27,1],"tags":[],"class_list":["post-2331","post","type-post","status-publish","format-standard","hentry","category-engine-removal-and-installation-ventilation-cran","category-m110","category-uncategorized"],"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\/2331","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=2331"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2331\/revisions"}],"predecessor-version":[{"id":2332,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2331\/revisions\/2332"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}