{"id":1422,"date":"2017-10-15T23:59:50","date_gmt":"2017-10-15T22:59:50","guid":{"rendered":"http:\/\/www.purplemeanie.co.uk\/?p=1422"},"modified":"2025-01-31T13:12:06","modified_gmt":"2025-01-31T13:12:06","slug":"build-session-26-coolant-bleeding-unproductive","status":"publish","type":"post","link":"https:\/\/staging.purplemeanie.co.uk\/index.php\/2017\/10\/15\/build-session-26-coolant-bleeding-unproductive\/","title":{"rendered":"Build Session 26 : Coolant Bleeding &#8211; Unproductive"},"content":{"rendered":"\n<p>After the euphoria and relief of getting the engine going yesterday we thought we&#8217;d have another look at what might be causing the coolant temperature to get so high. We only had an hour or so in the morning but couldn&#8217;t resist another look to see if we could find any obvious air-locks. Little did we know at this point that the coolant temperature was supposed to get that high (105C is normal), but we weren&#8217;t taking any chances.<\/p>\n\n\n\n<p>We played around for a while, attempting to bleed air from the system: heater connections, rear of cylinder head, thermostat T-piece and radiator top hose. There didn&#8217;t seem to be any air in the system from what we could tell and due to a lack of time decided again to consult with Derek and see what he said in the morning.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone is-style-default\"><a href=\"http:\/\/www.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/Three-Wise-Monkeys-Adjusted.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"352\" data-attachment-id=\"1425\" data-permalink=\"https:\/\/staging.purplemeanie.co.uk\/index.php\/2017\/10\/15\/build-session-26-coolant-bleeding-unproductive\/three-wise-monkeys-adjusted\/\" data-orig-file=\"https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/Three-Wise-Monkeys-Adjusted.jpg\" data-orig-size=\"1660,973\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1514414046&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Three Wise Monkeys &amp;#8211; Adjusted\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Three wise monkeys reviewing the coolant system&lt;\/p&gt;\n\" data-large-file=\"https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/Three-Wise-Monkeys-Adjusted.jpg\" src=\"http:\/\/www.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/Three-Wise-Monkeys-Adjusted-600x352.jpg\" alt=\"\" class=\"wp-image-1425\" srcset=\"https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/Three-Wise-Monkeys-Adjusted-600x352.jpg 600w, https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/Three-Wise-Monkeys-Adjusted-768x450.jpg 768w, https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/Three-Wise-Monkeys-Adjusted.jpg 1660w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><figcaption>Three wise monkeys reviewing the coolant system<\/figcaption><\/figure>\n\n\n\n<p>At the end of our efforts the engine bay still looked like this&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone is-style-default\"><a href=\"http:\/\/www.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/IMG_3061.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"2048\" data-attachment-id=\"1424\" data-permalink=\"https:\/\/staging.purplemeanie.co.uk\/index.php\/2017\/10\/15\/build-session-26-coolant-bleeding-unproductive\/img_3061\/\" data-orig-file=\"https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/IMG_3061.jpg\" data-orig-size=\"3024,4032\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;1.8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 7 Plus&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1508078635&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;3.99&quot;,&quot;iso&quot;:&quot;40&quot;,&quot;shutter_speed&quot;:&quot;0.058823529411765&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"IMG_3061\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Engine bay the day after first start&lt;\/p&gt;\n\" data-large-file=\"https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/IMG_3061-1536x2048.jpg\" src=\"http:\/\/www.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/IMG_3061-1536x2048.jpg\" alt=\"\" class=\"wp-image-1424\" srcset=\"https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/IMG_3061-1536x2048.jpg 1536w, https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/IMG_3061-450x600.jpg 450w, https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/IMG_3061-768x1024.jpg 768w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/a><figcaption>Engine bay the day after first start<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>After the euphoria and relief of getting the engine going yesterday we thought we&#8217;d have another look at what might be causing the coolant temperature to get so high. We only had an hour or so in the morning but couldn&#8217;t resist another look to see if we could find any obvious air-locks. Little did [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1425,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[3,51],"tags":[33],"class_list":["post-1422","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-caterham-420r-build","category-caterham-blog","tag-build"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/12\/Three-Wise-Monkeys-Adjusted.jpg","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/phg0Uj-mW","jetpack-related-posts":[{"id":1428,"url":"https:\/\/staging.purplemeanie.co.uk\/index.php\/2017\/10\/21\/build-session-27-more-bleeding-coolant\/","url_meta":{"origin":1422,"position":0},"title":"Build Session 27 : More Bleeding Coolant","author":"John Martin","date":"October 21, 2017","format":false,"excerpt":"It was going to be \"back to the coolant system again\" today. I had left the car at the point where we'd started the engine but were worried about the coolant temperature getting well over 100C, something like 105C. We then chickened-out, \u00a0turned it off and decided to ask Derek.\u2026","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/staging.purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3093.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3093.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3093.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3093.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3093.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3093.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1282,"url":"https:\/\/staging.purplemeanie.co.uk\/index.php\/2017\/10\/14\/build-session-25-main-engine-start\/","url_meta":{"origin":1422,"position":1},"title":"Build Session 25 : Main engine start!!!","author":"John Martin","date":"October 14, 2017","format":false,"excerpt":"It\u2019s not that I've been terribly worried about the prospect of starting the engine... but... I certainly didn\u2019t want to have missed something stupid and to then screw up a very expensive lump of aluminium and steel. Today I also had another pair of hands and a tripling of brain\u2026","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/staging.purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/First-Start.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/First-Start.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/First-Start.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/First-Start.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/First-Start.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/First-Start.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1105,"url":"https:\/\/staging.purplemeanie.co.uk\/index.php\/2017\/09\/23\/build-session-17-5-caterham-420r-water-and-oil-overview\/","url_meta":{"origin":1422,"position":2},"title":"Build Session 17.5 : Caterham 420R Water and Oil Overview","author":"John Martin","date":"September 23, 2017","format":false,"excerpt":"This is a post from the future and a rather technical one at that - so stop reading now if that's a big turn off for you :-) Having got the engine running I thought it would be a useful addition to the blog to have a diagram of the\u2026","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/staging.purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/420R-With-Heater-and-Dry-Sump-Engine-Bay-Plumbing-FL-24.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/420R-With-Heater-and-Dry-Sump-Engine-Bay-Plumbing-FL-24.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/420R-With-Heater-and-Dry-Sump-Engine-Bay-Plumbing-FL-24.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/420R-With-Heater-and-Dry-Sump-Engine-Bay-Plumbing-FL-24.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/420R-With-Heater-and-Dry-Sump-Engine-Bay-Plumbing-FL-24.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/420R-With-Heater-and-Dry-Sump-Engine-Bay-Plumbing-FL-24.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1707,"url":"https:\/\/staging.purplemeanie.co.uk\/index.php\/2017\/11\/29\/post-build-check\/","url_meta":{"origin":1422,"position":3},"title":"Post Build Check","author":"John Martin","date":"November 29, 2017","format":false,"excerpt":"Uh oh - its crunch time! Somebody else that knows way more than I do, is going to take a look at my handiwork and tell me how much my ignorance is going to cost me. The Post Build Check is taking place today, Wednesday after I\u2019d finished my Big\u2026","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/staging.purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/IMG_0247.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/IMG_0247.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/IMG_0247.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/IMG_0247.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/IMG_0247.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/IMG_0247.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":5004,"url":"https:\/\/staging.purplemeanie.co.uk\/index.php\/2019\/09\/15\/ecu-diagnostics-part-9-the-easimap-protocol-theory\/","url_meta":{"origin":1422,"position":4},"title":"ECU Diagnostics &#8211; part 9 : The Easimap Protocol Theory","author":"John Martin","date":"September 15, 2019","format":false,"excerpt":"Ok. so we've set ourselves up to be able to look at what is going on with a Caterham diagnostics port, we've talked a bit about the theory of what we might see from the port and we've also seen that Easimap talks to the ECU using a higher level\u2026","rel":"","context":"In &quot;ECU Diagnostics&quot;","block_context":{"text":"ECU Diagnostics","link":"https:\/\/staging.purplemeanie.co.uk\/index.php\/category\/caterham-blog\/ecu-diagnostics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/09\/Part-9-Banner.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/09\/Part-9-Banner.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/09\/Part-9-Banner.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/09\/Part-9-Banner.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":4782,"url":"https:\/\/staging.purplemeanie.co.uk\/index.php\/2019\/09\/07\/ecu-diagnostics-part-4-wireshark-patching-and-obd-ii-results\/","url_meta":{"origin":1422,"position":5},"title":"ECU Diagnostics &#8211; part 4 : Wireshark Patching and OBD-II Results","author":"John Martin","date":"September 7, 2019","format":false,"excerpt":"When Wireshark first appeared, it was called Ethereal... and its motto was: \"Sniffing the glue that holds the internet together\" Wireshark sniffs the packet-glue that holds the internet together and is one of the most influential pieces of open source software there is.\u00a0 That's a pretty bold statement and I\u2026","rel":"","context":"In &quot;Caterham Blog&quot;","block_context":{"text":"Caterham Blog","link":"https:\/\/staging.purplemeanie.co.uk\/index.php\/category\/caterham-blog\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/08\/cano7-OBD-II-working.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/08\/cano7-OBD-II-working.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/08\/cano7-OBD-II-working.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/08\/cano7-OBD-II-working.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/08\/cano7-OBD-II-working.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.purplemeanie.co.uk\/wp-content\/uploads\/2019\/08\/cano7-OBD-II-working.png?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/1422","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/comments?post=1422"}],"version-history":[{"count":1,"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/1422\/revisions"}],"predecessor-version":[{"id":10727,"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/1422\/revisions\/10727"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/media\/1425"}],"wp:attachment":[{"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/media?parent=1422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/categories?post=1422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/staging.purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/tags?post=1422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}