{"id":2304,"date":"2023-11-08T19:05:13","date_gmt":"2023-11-08T19:05:13","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2304"},"modified":"2023-11-08T19:05:13","modified_gmt":"2023-11-08T19:05:13","slug":"checking-cylinders-for-leaks","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/08\/checking-cylinders-for-leaks\/","title":{"rendered":"Checking cylinders for leaks"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n
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01\u2014015 Checking cylinders for leaks<\/div>\n<\/div>\n<\/td>\n
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Data<\/strong><\/div>\n<\/div>\n<\/td>\n
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Total pressure loss<\/div>\n
On valves and cylinder head gasket<\/div>\n
On piston and piston rings<\/div>\n<\/div>\n<\/td>\n
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max 25%<\/div>\n
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max 20%<\/div>\n<\/div>\n<\/td>\n
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Special tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Socket 27 mm for rotating engine<\/div>\n<\/div>\n<\/td>\n
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iiDOt- 619]<\/div>\n<\/div>\n<\/td>\n
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001 589 65 09 00<\/div>\n<\/div>\n<\/td>\n
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Conventional tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Cylinder leak tester<\/div>\n<\/div>\n<\/td>\n
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e.g. made by Bosch, EFAW 210 A made by SUN, CLT 228<\/div>\n<\/div>\n<\/td>\n
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Checking<\/strong><\/div>\n<\/div>\n<\/td>\n
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1<\/strong>\u00a0 \u00a0 Run engine up to operating temperature.<\/div>\n
2\u00a0 \u00a0Unscrew spark plugs.<\/div>\n
3\u00a0 \u00a0 Remove radiator cap and add coolant.<\/div>\n
4\u00a0 \u00a0 Remove oil filler plug.<\/div>\n
5\u00a0 \u00a0 Remove air filter.<\/div>\n
6\u00a0 \u00a0Connect cylinder leak tester to a compressed air source. Calibrate tester.<\/div>\n<\/div>\n<\/td>\n
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7\u00a0 \u00a0Set piston of cylinder 1 to ignition TDC.<\/div>\n
For this purpose, turn engine on crankshaft by means of tool combination.<\/div>\n
8\u00a0 \u00a0Set throttle valve to fully open.<\/div>\n<\/div>\n<\/td>\n
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01.2-015\/1 F3<\/div>\n<\/div>\n<\/td>\n
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9\u00a0 \u00a0Screw connection hose into first spark plug bore and couple to connecting hose of tester. Crankshaft should not rotate.<\/div>\n
10\u00a0 \u00a0 Read pressure loss on tester.<\/div>\n<\/div>\n<\/td>\n
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11\u00a0 \u00a0 Check by listening whether pressure escapes via intake pipe, exhaust, oil filler cap, spark plug bore of adjacent cylinder or radiator cap.<\/div>\n
12\u00a0 \u00a0 Check all cylinders in ignition sequence.<\/div>\n<\/div>\n<\/td>\n
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Note: <\/strong>The respective pistons are in TDC position when the markings on vibration damper as shown in adjacent drawing are below TDC indicator.<\/div>\n<\/div>\n<\/td>\n
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TDC position of pistons<\/div>\n
TDC Piston 1 and 6 a Piston 3 and 4 b Piston 2 and 5<\/div>\n<\/div>\n<\/td>\n
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Note: <\/strong>There is the possibility that the piston ring gaps of individual pistons are directly one above the other, so that the test result will be misrepresented.<\/div>\n
When in doubt, continue running vehicle and check cylinders for leaks once again later on.<\/div>\n<\/div>\n<\/td>\n
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01.2-015\/2 F3<\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

01\u2014015 Checking cylinders for leaks   Data   Total pressure loss On valves and cylinder head gasket On piston and piston rings max 25% max 10% max 20%   Special tool       Socket 27 mm for rotating engine iiDOt- 619]   001 589 65 09 00 Conventional tool       Cylinder leak tester     e.g. made by Bosch, EFAW 210 A made by SUN, CLT 228   Checking   1\u00a0 \u00a0 Run engine up to operating temperature. 2\u00a0 \u00a0Unscrew spark plugs. 3\u00a0 \u00a0 Remove radiator cap and add coolant. 4\u00a0 \u00a0 Remove oil filler plug. 5\u00a0 \u00a0 Remove air filter. 6\u00a0 \u00a0Connect cylinder leak tester to a compressed air source. Calibrate tester.   7\u00a0 \u00a0Set piston of cylinder 1 to ignition TDC. For this purpose, turn engine on crankshaft by means of tool combination. 8\u00a0 \u00a0Set throttle valve to fully open.   01.2-015\/1 F3     9\u00a0 \u00a0Screw connection hose into first spark plug bore and couple to connecting hose of tester. Crankshaft should not rotate. 10\u00a0 \u00a0 Read pressure loss on tester.   11\u00a0 \u00a0 Check by listening whether pressure escapes via intake pipe, exhaust, oil filler cap, spark plug bore of adjacent cylinder or radiator cap. 12\u00a0 \u00a0 Check all cylinders in ignition sequence.   Note: The respective pistons are in TDC position when the markings on vibration damper as shown in adjacent drawing are below TDC indicator. TDC position of pistons TDC Piston 1 and 6 a Piston 3 and 4 b Piston 2 and 5 Note: There is the possibility that the piston ring gaps of individual pistons are directly one above the other, so that the test result will be misrepresented. When in doubt, continue running vehicle and check cylinders for leaks once again later on.   01.2-015\/2 F3<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,27],"tags":[],"class_list":["post-2304","post","type-post","status-publish","format-standard","hentry","category-engine-removal-and-installation-ventilation-cran","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