{"id":2517,"date":"2023-11-13T22:29:02","date_gmt":"2023-11-13T21:29:02","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2517"},"modified":"2023-11-13T22:30:04","modified_gmt":"2023-11-13T21:30:04","slug":"testing-and-adjusting-tn-choke-for-function","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/13\/testing-and-adjusting-tn-choke-for-function\/","title":{"rendered":"Testing and adjusting TN choke for function"},"content":{"rendered":"

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07.2\u2014130 Testing and adjusting TN choke for function<\/strong><\/div>\n<\/div>\n<\/td>\n
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Testing and adjusting values<\/strong><\/div>\n<\/div>\n<\/td>\n
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TN control piston overlap at + 85 \u00b0C coolant temperature<\/div>\n<\/div>\n<\/td>\n
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0.8-1.0 mm<\/div>\n<\/div>\n<\/td>\n
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TN control window opening at + 20 \u00b0C<\/div>\n<\/div>\n<\/td>\n
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approx. 2.5 mm<\/div>\n<\/div>\n<\/td>\n
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Special tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Clamp<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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000 589 40 37 00<\/div>\n<\/div>\n<\/td>\n
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Conventional tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Combined slide and depth gauge<\/div>\n<\/div>\n<\/td>\n
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Testing, adjusting<\/strong><\/div>\n<\/div>\n<\/td>\n
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\u25a0Kir-tms<\/em><\/strong><\/div>\n<\/div>\n<\/div>\n<\/td>\n
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1<\/strong>\u00a0 \u00a0 Run engine to operating temperature (coolant thermostat opened (approx. 85 \u00b0C).<\/div>\n
2\u00a0 \u00a0After loosening the two fastening screws (arrows) pull out TN choke with water hoses connected.<\/div>\n<\/div>\n<\/td>\n
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TN choke version 2 with enlarged expansion element and housing<\/div>\n<\/div>\n<\/td>\n
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3 Test and adjust TN control piston position. For this purpose, after pulling out TN choke, immediately measure dimension „X” from face up to upper edge of control window directly adjacent to web.<\/div>\n
Attention!<\/strong><\/div>\n
Measuring is required immediately because upon cooling down the expansion element will respond and cause control piston to move to another position.<\/div>\n<\/div>\n<\/td>\n
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Measuring dimension „X’<\/div>\n<\/div>\n<\/td>\n
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07.2.2 la\u2014130\/1<\/div>\n<\/div>\n<\/td>\n
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4 Then measure dimension „Y” from face up to edge of control piston.<\/div>\n
Dimension „Y” should be 0.8\u20141.0 mm smaller than dimension „X”, so that the control piston will close control window with overlap.<\/div>\n
TN control piston overlap: <\/strong>at + 85 \u00b0C coolant tem\u00adperature 0.8\u20141.0 mm.<\/strong><\/div>\n<\/div>\n<\/td>\n
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Measuring dimension „Y”<\/div>\n<\/div>\n<\/td>\n
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5 Adjust TN control piston position by means of adjusting screw.<\/div>\n
Screwing out <\/strong>= reducing overlap Screwing in = increasing overlap<\/strong><\/div>\n
Note: <\/strong>At + 20 \u00b0C temperature of TN choke, the TN control window should be open by approx. 2.5 mm. <\/strong>Each 10 \u00b0C of temperature change will cause control piston to travel approx. 0.5 mm, i.e. at approx. 70 \u00b0C coolant temperature the control window is just closed. At approx. 0 \u00b0C the control window is wide open.<\/div>\n<\/div>\n<\/td>\n
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6\u00a0 \u00a0Pinch coolant hoses on TN choke and pull off.<\/div>\n
7\u00a0 \u00a0 Let TN choke cool down below + 20 \u00b0C (e.g. tap water) and then measure TN control window opening „a”<\/div>\n
Nominal value: <\/strong>min. 2.5 mm.<\/div>\n
(If control window opening is essentially less, replace TN choke).<\/div>\n
8\u00a0 \u00a0 Reinstall TN choke.<\/div>\n<\/div>\n<\/td>\n
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07.2.2 la-130\/2<\/div>\n<\/div>\n<\/td>\n
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    07.2\u2014130 Testing and adjusting TN choke for function   Testing and adjusting values   TN control piston overlap at + 85 \u00b0C coolant temperature 0.8-1.0 mm   TN control window opening at + 20 \u00b0C approx. 2.5 mm   Special tool   Clamp 000 589 40 37 00   Conventional tool   Combined slide and depth gauge   Testing, adjusting \u25a0Kir-tms 1\u00a0 \u00a0 Run engine to operating temperature (coolant thermostat opened (approx. 85 \u00b0C). 2\u00a0 \u00a0After loosening the two fastening screws (arrows) pull out TN choke with water hoses connected. TN choke version 2 with enlarged expansion element and housing   3 Test and adjust TN control piston position. For this purpose, after pulling out TN choke, immediately measure dimension „X” from face up to upper edge of control window directly adjacent to web. Attention! Measuring is required immediately because upon cooling down the expansion element will respond and cause control piston to move to another position. Measuring dimension „X’   07.2.2 la\u2014130\/1       4 Then measure dimension „Y” from face up to edge of control piston. Dimension „Y” should be 0.8\u20141.0 mm smaller than dimension „X”, so that the control piston will close control window with overlap. TN control piston overlap: at + 85 \u00b0C coolant tem\u00adperature 0.8\u20141.0 mm. Measuring dimension „Y”   5 Adjust TN control piston position by means of adjusting screw. Screwing out = reducing overlap Screwing in = increasing overlap Note: At + 20 \u00b0C temperature of TN choke, the TN control window should be open by approx. 2.5 mm. Each 10 \u00b0C of temperature change will cause control piston to travel approx. 0.5 mm, i.e. at approx. 70 \u00b0C coolant temperature the control window is just closed. At approx. 0 \u00b0C the control window is wide open.   6\u00a0 \u00a0Pinch coolant hoses on TN choke and pull off. 7\u00a0 \u00a0 Let TN choke cool down below + 20 \u00b0C (e.g. tap water) and then measure TN control window opening „a” Nominal value: min. 2.5 mm. (If control window opening is essentially less, replace TN choke). 8\u00a0 \u00a0 Reinstall TN choke.   07.2.2 la-130\/2        <\/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":[32,27],"tags":[],"class_list":["post-2517","post","type-post","status-publish","format-standard","hentry","category-carburetor-fuel-pump-throttle-linkage","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\/2517","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=2517"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2517\/revisions"}],"predecessor-version":[{"id":2518,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2517\/revisions\/2518"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}