{"id":466,"date":"2017-08-24T10:42:30","date_gmt":"2017-08-24T09:42:30","guid":{"rendered":"http:\/\/www.purplemeanie.co.uk\/?p=466"},"modified":"2026-05-28T01:08:28","modified_gmt":"2026-05-28T00:08:28","slug":"email-derek-3-no-inner-radiator-cowl","status":"publish","type":"post","link":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/08\/24\/email-derek-3-no-inner-radiator-cowl\/","title":{"rendered":"Email Derek 3 : No Inner Radiator Cowl"},"content":{"rendered":"\n<p>Derek had responded to my previous email about the ARB bush colour really quickly this morning and so I had a quick look at the next steps for the ARB. I wasn&#8217;t going to be able to do anything today but I at least wanted to familiarise myself with what should happen.<\/p>\n\n\n\n<p>I also resolved to spend more time hunting out bits for the next steps prior to needing them. So, I opened up the manual before going to work today and started to look for ARB components.<\/p>\n\n\n\n<p>I got to the section in the manual that talks about the front ARB install but couldn&#8217;t find the radiator inner cowl that needs to go in before the ARB can be attached on a 420R. I opened all my remaining kit boxes and checked through them twice. The manual is fairly vague about what the cowl might look like and I only figured that out by looking at other people&#8217;s blogs. It should look something like this (though it&#8217;s marked as a Sigma part on the Chaterham web site)\u2026<\/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\/08\/cowling-radiator-rear-sigma.jpg\" rel=\"attachment wp-att-591\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" data-attachment-id=\"591\" data-permalink=\"https:\/\/purplemeanie.co.uk\/index.php\/2017\/08\/24\/email-derek-3-no-inner-radiator-cowl\/cowling-radiator-rear-sigma\/\" data-orig-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/cowling-radiator-rear-sigma.jpg\" data-orig-size=\"640,480\" 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;0&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=\"cowling-radiator-rear-sigma\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Inner Radiator Cowl no longer fitted&lt;\/p&gt;\n\" data-large-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/cowling-radiator-rear-sigma.jpg\" src=\"http:\/\/www.purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/cowling-radiator-rear-sigma.jpg\" alt=\"Rear radiator cowling panel with hose openings on a blue background.\" class=\"wp-image-591\" srcset=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/cowling-radiator-rear-sigma.jpg 640w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/cowling-radiator-rear-sigma-600x450.jpg 600w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><figcaption>Inner Radiator Cowl no longer fitted (courtesy of the Caterham web site)<\/figcaption><\/figure>\n\n\n\n<p>Another email to Derek&#8230;<\/p>\n\n\n\n<p>From me:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><em>Thanks Derek. I think I may have a short. I can find no trace of the inner radiator cowl. The manual seems to be pretty vague about it so I hadn\u2019t appreciated what it looks like until re-reading blogs about ARB.<\/em><\/p><\/blockquote>\n\n\n\n<div><em>Where would I find it if I did have it. I\u2019ve emptied the really big boxes with loose components onto shelves, so I\u2019m sure I would have seen it if it were in them. It\u2019s also not on the aerial picture of all the components I took.<\/em><\/div>\n\n\n\n<p>From Derek:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><em>We<\/em> no<em> longer fit the cowling to the 420R as we felt the cooling was better without it.<\/em><\/p><\/blockquote>\n\n\n\n<p>Hmm. Ok. So all that time looking for the cowl and I don&#8217;t need one.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Caterham support email clarifying the missing inner radiator cowl question during the 420R build.<\/p>\n","protected":false},"author":1,"featured_media":591,"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":[33,66,76,87],"class_list":["post-466","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-caterham-420r-build","category-caterham-blog","tag-build","tag-caterham","tag-caterham-420r-build","tag-cooling"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/cowling-radiator-rear-sigma.jpg","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8yl38-7w","jetpack-related-posts":[{"id":468,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/08\/23\/email-derek-2-arb-bush-colour-and-the-red-dot\/","url_meta":{"origin":466,"position":0},"title":"Email Derek 2 : ARB Bush Colour and the Red Dot","author":"John Martin","date":"August 23, 2017","format":false,"excerpt":"Caterham support email covering anti-roll bar bush colour identification and red-dot guidance during the 420R build.","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"Orange dot on the anti-roll bar beside mixed orange and red ARB bushes.","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/ARB-dot-and-bushes.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/ARB-dot-and-bushes.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/ARB-dot-and-bushes.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/ARB-dot-and-bushes.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/ARB-dot-and-bushes.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":730,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/09\/09\/build-session-15-odds-and-ends-bonnet-and-radiator\/","url_meta":{"origin":466,"position":1},"title":"Build Session 15 : Odds and Ends, Bonnet and Radiator","author":"John Martin","date":"September 9, 2017","format":false,"excerpt":"Caterham 420R build session covering miscellaneous tidy-up work, bonnet fitting, and radiator installation.","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"Purple Caterham bonnet resting upright on the bonnet trolley.","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/IMG_2241.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/IMG_2241.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/IMG_2241.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/IMG_2241.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/IMG_2241.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/09\/IMG_2241.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1046,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/10\/11\/build-session-24-two-steps-back-and-two-steps-forwards-iva-front-brakes-headlamps-and-a-trip-to-caterham\/","url_meta":{"origin":466,"position":2},"title":"Build Session 24 : Two steps back and two steps forwards &#8211; IVA, Front Brakes, Headlamps and a trip to Caterham","author":"John Martin","date":"October 11, 2017","format":false,"excerpt":"Caterham 420R build session covering IVA corrections, front brake work, headlamp adjustments, and a trip to Caterham during the build.","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"Caterham showroom exterior with cars parked outside.","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_2940.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_2940.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_2940.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_2940.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_2940.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_2940.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":462,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/08\/25\/build-session-9-front-arb-and-horns\/","url_meta":{"origin":466,"position":3},"title":"Build Session 9 : Front ARB and Horns","author":"John Martin","date":"August 25, 2017","format":false,"excerpt":"Caterham 420R build session covering front anti-roll bar work and horn installation during the early chassis build.","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"Upper wishbone anti-roll bar recess 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3125","author":"John Martin","date":"August 23, 2017","format":false,"excerpt":"Caterham 420R build session covering front brake hoses, anti-roll bar work, and Dinitrol protection on the early chassis assembly.","rel":"","context":"In &quot;Caterham 420R Build&quot;","block_context":{"text":"Caterham 420R Build","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/caterham-420r-build\/"},"img":{"alt_text":"Front brake hoses and couplings laid out on a cutting mat.","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_1815.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_1815.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_1815.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_1815.jpg?resize=700%2C400&ssl=1 2x, 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