{"id":2395,"date":"2023-11-08T20:44:58","date_gmt":"2023-11-08T20:44:58","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2395"},"modified":"2023-11-08T20:44:58","modified_gmt":"2023-11-08T20:44:58","slug":"removal-and-installation-of-chain-tensioner","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/08\/removal-and-installation-of-chain-tensioner\/","title":{"rendered":"Removal and installation of chain tensioner"},"content":{"rendered":"

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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05\u2014310 Removal and installation of chain tensioner<\/strong><\/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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Ball locating ring (oil jet) in chain<\/div>\n<\/div>\n<\/td>\n
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25<\/strong><\/div>\n<\/div>\n<\/td>\n
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Plug<\/div>\n<\/div>\n<\/td>\n
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50<\/div>\n<\/div>\n<\/td>\n
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Threaded ring<\/div>\n<\/div>\n<\/td>\n
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50<\/div>\n<\/div>\n<\/td>\n
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Special tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Wrench socket 10 mm, 1\/2″ square, 140 mm long<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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000 589 05 07 00<\/div>\n<\/div>\n<\/td>\n
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Holder for chain tensioner<\/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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Conventional tools<\/strong><\/div>\n<\/div>\n<\/td>\n
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Screwdriver socket 19 mm 1\/2″ square<\/div>\n<\/div>\n<\/td>\n
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e.g. made by Hazet, order No. 985-19<\/div>\n<\/div>\n<\/td>\n
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D-5630 Remscheid<\/div>\n<\/div>\n<\/td>\n
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Screwdriver socket 17 mm 1\/2″ square<\/div>\n<\/div>\n<\/td>\n
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e.g. made by Hazet, order No. 985-17<\/div>\n<\/div>\n<\/td>\n
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D-5630 Remscheid<\/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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Chain tensioners are available in two versions and interchangeable with each other.<\/div>\n<\/div>\n<\/td>\n
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1st version<\/div>\n
1\u00a0 \u00a0Ball seat ring with 3.0 mm bore<\/div>\n
2\u00a0 \u00a0Ball<\/div>\n
3\u00a0 \u00a0Ball cage<\/div>\n
4\u00a0 Spring<\/div>\n
5\u00a0 \u00a0Valve disc<\/div>\n
6\u00a0 O-ring<\/div>\n<\/div>\n<\/td>\n
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7\u00a0 \u00a0Ball<\/div>\n
8\u00a0 Spring<\/div>\n
9\u00a0 Snap ring<\/div>\n
10\u00a0 \u00a0Pressure pin<\/div>\n
11\u00a0 \u00a0Housing<\/div>\n
12\u00a0 Snap ring<\/div>\n<\/div>\n<\/td>\n
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R 05\/7329<\/div>\n<\/div>\n<\/td>\n
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05.2-310\/1 F3<\/div>\n<\/div>\n<\/td>\n
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The 2nd version chain tensioner does not have valves and its oil jet (4) has a 1.1 mm bore.<\/div>\n
Difference when installed:<\/div>\n
1st version: bore in ball locating ring closed by ball.<\/div>\n
2nd version: bore in oil jet can be checked for plugging with a piece of 1 mm dia. wire.<\/div>\n
2nd version<\/div>\n
4\u00a0 \u00a0Oil nozzle\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a07 Pressure pin with 1.1 mm bore 8 Housing<\/div>\n
5\u00a0 \u00a0Spring<\/div>\n
6\u00a0 Snap ring<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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RO5-7322\/2<\/strong><\/div>\n<\/div>\n<\/td>\n
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Attention!<\/strong><\/div>\n
Without counterpressure from the clamping rail the pressure pin (10) with snap ring (9) will be pressed forward up to the stop by spring (4).<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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Chain tensioner in operating position<\/div>\n
1\u00a0 \u00a0Ball locating ring\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 7 Ball<\/div>\n<\/div>\n<\/td>\n
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2\u00a0 \u00a0Ball<\/div>\n
3\u00a0 \u00a0Ball cage<\/div>\n
4\u00a0 Spring<\/div>\n
5\u00a0 \u00a0Valve disc<\/div>\n
6\u00a0 \u00a0O-ring<\/div>\n<\/div>\n<\/td>\n
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8\u00a0 \u00a0Spring<\/div>\n
9\u00a0 Snap ring<\/div>\n
10\u00a0 \u00a0Pressure pin<\/div>\n
11\u00a0 \u00a0Housing<\/div>\n
12\u00a0 \u00a0Snap ring<\/div>\n<\/div>\n<\/td>\n
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The pressure pin cannot be pressed back beyond the saw tooth type catch in assembly position ,,A”.<\/div>\n
Thus the chain tensioner must be disassembled before each installation to move the pressure pin to assembly <\/strong>position ,,A”, <\/strong>since otherwise the timing chain would be too tight.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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Chain tensioner in assembly position.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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Removal<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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1 Remove battery and compressor of models with an air conditioner.<\/div>\n<\/div>\n<\/td>\n
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05.2-310\/2 F2<\/div>\n<\/div>\n<\/td>\n
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2 Remove plug with the 17 mm screwdriver socket.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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Attention!<\/strong><\/div>\n
If a 2nd version chain tensioner is installed, during assembly <\/strong>it will be sufficient to first remove spring <\/strong>(5) of an installed chain tensioner at the chain drive (e.g. remove camshaft sprocket or tensioning rail).<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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3 Loosen ball locating ring (oil jet) by about 2 turns with a socket wrench.<\/div>\n
This requires that the threaded ring be tightened.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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4 Remove threaded ring with a 19 mm screwdriver socket.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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05.2-310\/3 F2<\/div>\n<\/div>\n<\/td>\n
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5 Pull out chain tensioner with a 10 mm socket wrench.<\/div>\n
This requires that the socket wrench be canted slightly and the chain tensioner turned to the right.<\/div>\n
For pulling out stuck chain tensioner, screw a M 18 x 1.5 screw into chain tensioner housing instead of ball seat ring (oil nozzle).<\/div>\n<\/div>\n<\/td>\n
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Disassembling<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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6\u00a0 \u00a0Clamp chain tensioner in holders.<\/div>\n
7\u00a0 \u00a0 Unscrew ball seat ring (oil nozzle) with hex. socket wrench.<\/div>\n
When disassembling be careful of the spring force and apply counterpressure with a socket wrench.<\/div>\n<\/div>\n<\/td>\n
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8\u00a0 \u00a0 Remove spring (4) with ball cage (3), ball (2) and valve disc (5).<\/div>\n
9\u00a0 \u00a0 Relief chain tensioner, remove ball (7) and spring (8) from pressure limit valve.<\/div>\n<\/div>\n<\/td>\n
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10\u00a0 \u00a0Take off snap ring (12) with a small screwdriver.<\/div>\n
11\u00a0 \u00a0 Pull out pressure pin toward front (pressure direc\u00adtion).<\/div>\n
12\u00a0 \u00a0Clean out parts thoroughly.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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05.2-310\/4 F3<\/div>\n<\/div>\n<\/td>\n
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Assembling and installation<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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1st version<\/strong><\/div>\n
13\u00a0 \u00a0Clamp housing (11) with installed snap ring (12) in holders.<\/div>\n
14\u00a0 \u00a0 Install pressure pin (10) with snap ring (9) from above. The snap ring rests on the assembly chamfer and prevents the pressure pin from falling through onto a catch.<\/div>\n<\/div>\n<\/td>\n
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R 05\/7322<\/strong><\/div>\n<\/div>\n<\/td>\n
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15\u00a0 \u00a0 Install spring (8) and ball (7) of pressure limit valve.<\/div>\n
16\u00a0 \u00a0 Install spring (4) with valve disc (5) and O-Ring (6).<\/div>\n
17\u00a0 \u00a0 Place ball cage (3) and ball (2) on spring (4).<\/div>\n<\/div>\n<\/td>\n
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18 Install ball locating ring (1) on ball cage with an internal socket wrench. Compress spring (4) and screw ball locating ring into housing by about 2 <\/strong>turns.<\/div>\n
Attention!<\/strong><\/div>\n
Don’t tighten ball locating ring, since otherwise the pressure pin will jump forward and the chain tensioner will have to be disassembled again.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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19 Guide chain tensioner into chain tensioner hole in cylinder head with an internal socket wrench.<\/div>\n
Attention!<\/strong><\/div>\n
Don’t apply knocks to socket wrench, since otherwise the pressure pin will jump forward.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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05.2-310\/5 F2<\/div>\n<\/div>\n<\/td>\n
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20\u00a0 \u00a0 Install threaded ring (15) and tighten to a torque of 50 Nm.<\/div>\n
21\u00a0 \u00a0 Tighten ball locating ring to 25 Nm whereby the pressure pin must make a clicking noise <\/strong>as it jumps forward.<\/div>\n
22\u00a0 \u00a0 Install plug (13) with seal (14) and torque to 50 Nm.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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2nd version<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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23 Guide housing (8) into cylinder head.<\/div>\n<\/div>\n<\/td>\n
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24 Install threaded ring (3) and torque to 50 Nm.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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25\u00a0 \u00a0 Install pressure pin (7) with installed snap ring (6) and spring (5) in housing and torque oil jet (4) to 25 Nm, whereby the pressure pin must make <\/strong>a clicking noise <\/strong>as it jumps forward.<\/div>\n
26\u00a0 \u00a0 Install plug (1) with seal (2) and torque to 50 Nm.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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05.2-310\/6 F3<\/div>\n<\/div>\n<\/td>\n
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    05\u2014310 Removal and installation of chain tensioner   Tightening torques Nm   Ball locating ring (oil jet) in chain 25   Plug 50   Threaded ring 50   Special tool   Wrench socket 10 mm, 1\/2″ square, 140 mm long 000 589 05 07 00 Holder for chain tensioner 110 589 02 31 00 Conventional tools     Screwdriver socket 19 mm 1\/2″ square e.g. made by Hazet, order No. 985-19 D-5630 Remscheid Screwdriver socket 17 mm 1\/2″ square e.g. made by Hazet, order No. 985-17 D-5630 Remscheid   Note Chain tensioners are available in two versions and interchangeable with each other. 1st version 1\u00a0 \u00a0Ball seat ring with 3.0 mm bore 2\u00a0 \u00a0Ball 3\u00a0 \u00a0Ball cage 4\u00a0 Spring 5\u00a0 \u00a0Valve disc 6\u00a0 O-ring 7\u00a0 \u00a0Ball 8\u00a0 Spring 9\u00a0 Snap ring 10\u00a0 \u00a0Pressure pin 11\u00a0 \u00a0Housing 12\u00a0 Snap ring R 05\/7329   05.2-310\/1 F3       The 2nd version chain tensioner does not have valves and its oil jet (4) has a 1.1 mm bore. Difference when installed: 1st version: bore in ball locating ring closed by ball. 2nd version: bore in oil jet can be checked for plugging with a piece of 1 mm dia. wire. 2nd version 4\u00a0 \u00a0Oil nozzle\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a07 Pressure pin with 1.1 mm bore 8 Housing 5\u00a0 \u00a0Spring 6\u00a0 Snap ring RO5-7322\/2   Attention! Without counterpressure from the clamping rail the pressure pin (10) with snap ring (9) will be pressed forward up to the stop by spring (4). Chain tensioner in operating position 1\u00a0 \u00a0Ball locating ring\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 7 Ball 2\u00a0 \u00a0Ball 3\u00a0 \u00a0Ball cage 4\u00a0 Spring 5\u00a0 \u00a0Valve disc 6\u00a0 \u00a0O-ring 8\u00a0 \u00a0Spring 9\u00a0 Snap ring 10\u00a0 \u00a0Pressure pin 11\u00a0 \u00a0Housing 12\u00a0 \u00a0Snap ring     The pressure pin cannot be pressed back beyond the saw tooth type catch in assembly position ,,A”. Thus the chain tensioner must be disassembled before each installation to move the pressure pin to assembly position ,,A”, since otherwise the timing chain would be too tight.   Chain tensioner in assembly position.   Removal 1 Remove battery and compressor of models with an air conditioner.   05.2-310\/2 F2       2 Remove plug with the 17 mm screwdriver socket.   Attention! If a 2nd version chain tensioner is installed, during assembly it will be sufficient to first remove spring (5) of an installed chain tensioner at the chain drive (e.g. remove camshaft sprocket or tensioning rail).   3 Loosen ball locating ring (oil jet) by about 2 turns with a socket wrench. This requires that the threaded ring be tightened.   4 Remove threaded ring with a 19 mm screwdriver socket.   05.2-310\/3 F2       5 Pull out chain tensioner with a 10 mm socket wrench. This requires that the socket wrench be canted slightly and the chain tensioner turned to the right. For pulling out stuck chain tensioner, screw a M 18 x 1.5 screw into chain tensioner housing instead of ball seat ring (oil nozzle).   Disassembling 6\u00a0 \u00a0Clamp chain tensioner in holders. 7\u00a0 \u00a0 Unscrew ball seat ring (oil nozzle) with hex. socket wrench. When disassembling be careful of the spring force and apply counterpressure with a socket wrench.   8\u00a0 \u00a0 Remove spring (4) with ball cage (3), ball (2) and valve disc (5). 9\u00a0 \u00a0 Relief chain tensioner, remove ball (7) and spring (8) from pressure limit valve.   10\u00a0 \u00a0Take off snap ring (12) with a small screwdriver. 11\u00a0 \u00a0 Pull out pressure pin toward front (pressure direc\u00adtion). 12\u00a0 \u00a0Clean out parts thoroughly.   05.2-310\/4 F3       Assembling and installation 1st version 13\u00a0 \u00a0Clamp housing (11) with installed snap ring (12) in holders. 14\u00a0 \u00a0 Install pressure pin (10) with snap ring (9) from above. The snap ring rests on the assembly chamfer and prevents the pressure pin from falling through onto a catch.   R 05\/7322   15\u00a0 \u00a0 Install spring (8) and ball (7) of pressure limit valve. 16\u00a0 \u00a0 Install spring (4) with valve disc (5) and O-Ring (6). 17\u00a0 \u00a0 Place ball cage (3) and ball (2) on spring (4).   18 Install ball locating ring (1) on ball cage with an internal socket wrench. Compress spring (4) and screw ball locating ring into housing by about 2 turns. Attention! Don’t tighten ball locating ring, since otherwise the pressure pin will jump forward and the chain tensioner will have to be disassembled again.   19 Guide chain tensioner into chain tensioner hole in cylinder head with an internal socket wrench. Attention! Don’t apply knocks to socket wrench, since otherwise the pressure pin will jump forward.   05.2-310\/5 F2       20\u00a0 \u00a0 Install threaded ring (15) and tighten to a torque of 50 Nm. 21\u00a0 \u00a0 Tighten ball locating ring to 25 Nm whereby the pressure pin must make a clicking noise as it jumps forward. 22\u00a0 \u00a0 Install plug (13) with seal (14) and torque to 50 Nm.   2nd version 23 Guide housing (8) into cylinder head.   24 Install threaded ring (3) and torque to 50 Nm.   25\u00a0 \u00a0 Install pressure pin (7) with installed snap ring (6) and spring (5) in housing and torque oil jet (4) to 25 Nm, whereby the pressure pin must make a clicking noise as it jumps forward. 26\u00a0 \u00a0 Install plug (1) with seal (2) and torque to 50 Nm.   05.2-310\/6 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-2395","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\/2395","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=2395"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2395\/revisions"}],"predecessor-version":[{"id":2396,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2395\/revisions\/2396"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}