{"id":2792,"date":"2023-11-17T22:20:12","date_gmt":"2023-11-17T21:20:12","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2792"},"modified":"2023-11-17T22:20:12","modified_gmt":"2023-11-17T21:20:12","slug":"checking-compression-pressure","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/17\/checking-compression-pressure\/","title":{"rendered":"Checking compression pressure"},"content":{"rendered":"

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01\u2014010 Checking compression pressure<\/strong><\/div>\n<\/div>\n<\/td>\n
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Test values for <\/strong>engine at <\/strong>operating temperature in bar gauge pressure (atii)<\/div>\n<\/div>\n<\/td>\n
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Normal compression pressure<\/div>\n<\/div>\n<\/td>\n
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24-30<\/div>\n<\/div>\n<\/td>\n
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Minimum compression pressure<\/div>\n<\/div>\n<\/td>\n
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approx. 15<\/div>\n<\/div>\n<\/td>\n
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Permissible difference between the individual cylinders<\/div>\n<\/div>\n<\/td>\n
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max. 3<\/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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Cap nuts of injection lines<\/div>\n<\/div>\n<\/td>\n
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Injection nozzles in prechambers<\/div>\n<\/div>\n<\/td>\n
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70-80<\/div>\n<\/div>\n<\/td>\n
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Pencil element glow plugs<\/div>\n<\/div>\n<\/td>\n
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20-30<\/div>\n<\/div>\n<\/td>\n
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Compression pressure recorder with accessories<\/div>\n<\/div>\n<\/td>\n
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\"om617<\/div>\n<\/td>\n
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001 589 47 21 00<\/div>\n<\/div>\n<\/td>\n
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Screw-in fitting for heating plug bore<\/div>\n<\/div>\n<\/td>\n
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617 589 03 21 00<\/div>\n<\/div>\n<\/td>\n
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Contact handle for rotating engine (Component of compression pressure recorder 001 589 46 21 00)<\/div>\n<\/div>\n<\/td>\n
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001 589 46 21 08<\/div>\n<\/div>\n<\/td>\n
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Measure compression pressure at 80 \u00b0C coolant tem\u00adperature. The compression pressure can be tested via heating plug bore or via prechambers. When pressure is below minimum compression pressure, check cylinders for leaks (01\u2014015).<\/div>\n<\/div>\n<\/td>\n
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01.8-010\/1 F2<\/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 Remove heating plugs or injection nozzles.<\/div>\n
2\u00a0 \u00a0Connect contact handle under battery to cable connector terminal 30 and 50.<\/div>\n<\/div>\n<\/td>\n
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Model 116.120<\/div>\n<\/div>\n<\/td>\n
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The cable connector is attached at the following points:<\/div>\n
Model 116.120: <\/strong>Under battery. Model 123 <\/strong>: On wheelhouse, right. Model 126.120: On frame side member<\/div>\n<\/div>\n<\/td>\n
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Model 123<\/strong><\/div>\n<\/div>\n<\/td>\n
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Model 126.120<\/strong><\/div>\n<\/div>\n<\/td>\n
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3 Rotate engine several times at transmission idle position, so that residue and soot are thrown out.<\/div>\n
Attention!<\/strong><\/div>\n
For the above purpose, push shutoff lever (stop) in direction of engine so that the injection pump is not injecting.<\/div>\n<\/div>\n<\/td>\n
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01.8-010\/2 F2<\/div>\n<\/div>\n<\/td>\n
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4 Enter screw fitting into glow plug bore or<\/div>\n
adaptor (component of compression pressure recorder)<\/div>\n
into prechamber.<\/div>\n
Connect compression pressure recorder.<\/div>\n<\/div>\n<\/td>\n
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Screw fitting<\/div>\n<\/div>\n<\/td>\n
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Compression pressure recorder, connected to glow plug bore<\/div>\n<\/div>\n<\/td>\n
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Compression pressure recorder, connected to prechamber<\/div>\n<\/div>\n<\/td>\n
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5\u00a0 \u00a0 Rotate engine 8 revolutions for testing.<\/div>\n
Attention!<\/strong><\/div>\n
For the above purpose, push shutoff lever (stop) in direction of engine so that the injection pump is not injecting.<\/div>\n
6\u00a0 \u00a0 Insert new nozzle reeds prior to installation of injection nozzle.<\/div>\n<\/div>\n<\/td>\n
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01.8-010\/3 F2<\/div>\n<\/div>\n<\/td>\n
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    01\u2014010 Checking compression pressure   Test values for engine at operating temperature in bar gauge pressure (atii)   Normal compression pressure 24-30   Minimum compression pressure approx. 15   Permissible difference between the individual cylinders max. 3   Tightening torques Nm Cap nuts of injection lines 25 Injection nozzles in prechambers 70-80 Pencil element glow plugs 20-30 Special tools     Compression pressure recorder with accessories 001 589 47 21 00 Screw-in fitting for heating plug bore 617 589 03 21 00   Contact handle for rotating engine (Component of compression pressure recorder 001 589 46 21 00) 001 589 46 21 08   Note   Measure compression pressure at 80 \u00b0C coolant tem\u00adperature. The compression pressure can be tested via heating plug bore or via prechambers. When pressure is below minimum compression pressure, check cylinders for leaks (01\u2014015).   01.8-010\/1 F2       Checking 1\u00a0 \u00a0 Remove heating plugs or injection nozzles. 2\u00a0 \u00a0Connect contact handle under battery to cable connector terminal 30 and 50. Model 116.120   The cable connector is attached at the following points: Model 116.120: Under battery. Model 123 : On wheelhouse, right. Model 126.120: On frame side member \\ Model 123   Model 126.120   3 Rotate engine several times at transmission idle position, so that residue and soot are thrown out. Attention! For the above purpose, push shutoff lever (stop) in direction of engine so that the injection pump is not injecting.   01.8-010\/2 F2       4 Enter screw fitting into glow plug bore or adaptor (component of compression pressure recorder) into prechamber. Connect compression pressure recorder. Screw fitting   Compression pressure recorder, connected to glow plug bore   Compression pressure recorder, connected to prechamber   5\u00a0 \u00a0 Rotate engine 8 revolutions for testing. Attention! For the above purpose, push shutoff lever (stop) in direction of engine so that the injection pump is not injecting. 6\u00a0 \u00a0 Insert new nozzle reeds prior to installation of injection nozzle.   01.8-010\/3 F2      <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46,44],"tags":[],"class_list":["post-2792","post","type-post","status-publish","format-standard","hentry","category-crankcase-and-cylinder-head","category-om617"],"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