{"id":448,"date":"2017-08-17T20:01:12","date_gmt":"2017-08-17T19:01:12","guid":{"rendered":"http:\/\/www.purplemeanie.co.uk\/?p=448"},"modified":"2025-01-31T13:14:45","modified_gmt":"2025-01-31T13:14:45","slug":"build-session-3-tapping-a-poorly-threaded-harness-mount","status":"publish","type":"post","link":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/08\/17\/build-session-3-tapping-a-poorly-threaded-harness-mount\/","title":{"rendered":"Build Session 3 : Tapping a Poorly Threaded Harness Mount"},"content":{"rendered":"\n<p>A simple job today&#8230; when the car arrived there was an obvious problem with the inboard off side harness bolt. The car is set up for 4-point harnesses and it now seems that Caterham, not only pre-attach the hood and the boot cover, they also pre-drill and set up the attachment points for the harnesses.<\/p>\n\n\n\n<p>Many build blogs talk about the process of unstitching the boot cover at the point where the stiffening aluminium (aluminum) bar sits at the front of the boot cover. The bar has to then be removed and the boot cover has the four holes for the harness bots punched in it. Then people typically glue up the unstitched boot cover.<\/p>\n\n\n\n<p>I have none of that to do as Caterham have done it already and has probably saved me a days work with the hood, hood sticks, harness bolts and boot cover.<\/p>\n\n\n\n<p>However, one of the bolts wasn&#8217;t screwed all the way into it&#8217;s thread. A quick tweak of the bolt on arrival day showed that it was binding in it&#8217;s thread and probably was suffering from some swarf or material in the threads.<\/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\/Harness-Bolt-Sticking-Out.png\" rel=\"attachment wp-att-484\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"338\" data-attachment-id=\"484\" data-permalink=\"https:\/\/purplemeanie.co.uk\/index.php\/2017\/08\/17\/build-session-3-tapping-a-poorly-threaded-harness-mount\/harness-bolt-sticking-out\/\" data-orig-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Harness-Bolt-Sticking-Out.png\" data-orig-size=\"1920,1080\" 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=\"Harness Bolt Sticking Out\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Harness bolt sticking out&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Harness-Bolt-Sticking-Out-600x338.png\" data-large-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Harness-Bolt-Sticking-Out.png\" src=\"http:\/\/www.purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Harness-Bolt-Sticking-Out-600x338.png\" alt=\"\" class=\"wp-image-484\" srcset=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Harness-Bolt-Sticking-Out-600x338.png 600w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Harness-Bolt-Sticking-Out-768x432.png 768w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Harness-Bolt-Sticking-Out.png 1920w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><figcaption>Harness bolt sticking out<\/figcaption><\/figure>\n\n\n\n<p>After pulling out the callipers and tap\/die thread gauge it became apparent that I was going to need to order a new tap &#8211; the bolt is M11x1.25t\/mm. One was ordered on Amazon and arrived today.<\/p>\n\n\n\n<p>It was then a five minute job to tap out the hole and test fit the bolt &#8211; another job done, 10 minutes.<\/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\/Tapping-out-the-harness-thread.png\" rel=\"attachment wp-att-485\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"338\" data-attachment-id=\"485\" data-permalink=\"https:\/\/purplemeanie.co.uk\/index.php\/2017\/08\/17\/build-session-3-tapping-a-poorly-threaded-harness-mount\/tapping-out-the-harness-thread\/\" data-orig-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Tapping-out-the-harness-thread.png\" data-orig-size=\"1920,1080\" 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=\"Tapping out the harness thread\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Tapping the harness mounting point&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Tapping-out-the-harness-thread-600x338.png\" data-large-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Tapping-out-the-harness-thread.png\" src=\"http:\/\/www.purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Tapping-out-the-harness-thread-600x338.png\" alt=\"\" class=\"wp-image-485\" srcset=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Tapping-out-the-harness-thread-600x338.png 600w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Tapping-out-the-harness-thread-768x432.png 768w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/Tapping-out-the-harness-thread.png 1920w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><figcaption>Tapping the harness mounting point<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A simple job today&#8230; when the car arrived there was an obvious problem with the inboard off side harness bolt. The car is set up for 4-point harnesses and it now seems that Caterham, not only pre-attach the hood and the boot cover, they also pre-drill and set up the attachment points for the harnesses. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":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}},"categories":[3,51],"tags":[33],"class_list":["post-448","post","type-post","status-publish","format-standard","hentry","category-caterham-420r-build","category-caterham-blog","tag-build"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8yl38-7e","jetpack-related-posts":[{"id":6462,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2020\/07\/19\/softbits-for-sevens-boot-cover-g-clamp-hack\/","url_meta":{"origin":448,"position":0},"title":"Softbits for Sevens Boot Cover &#038; G-clamp Hack","author":"John Martin","date":"July 19, 2020","format":false,"excerpt":"Note from Future John: The following post is a better way of doing this... https:\/\/purplemeanie.co.uk\/index.php\/2023\/07\/09\/finally-a-good-press-stud-tool\/ Well, one thing led to another! So... for a while now, like many, I'd ditched the Caterham full-hood and have been using the Softbits for Sevens Half Hood (https:\/\/www.softbitsshop.co.uk\/the-half-hood-8-c.asp). The half-hood is great, perhaps not\u2026","rel":"","context":"In &quot;Caterham Blog&quot;","block_context":{"text":"Caterham Blog","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2020\/07\/IMG_1004-scaled.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2020\/07\/IMG_1004-scaled.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2020\/07\/IMG_1004-scaled.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2020\/07\/IMG_1004-scaled.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2020\/07\/IMG_1004-scaled.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2020\/07\/IMG_1004-scaled.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1512,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/10\/28\/build-session-30-more-fuel-and-washer-bottle-fitting\/","url_meta":{"origin":448,"position":1},"title":"Build Session 30 : More Fuel and Washer Bottle Fitting","author":"John Martin","date":"October 28, 2017","format":false,"excerpt":"Having left the boot unfinished, after fitting the boot carpets, it was time to get and finish fitting the Washer Bottle and therefore the boot. Some Fuel .. but first some fuel. We had put enough fuel in the car to get it started, but it was going to need\u2026","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":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_1675.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_1675.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_1675.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_1675.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1267,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/10\/08\/build-session-23-harnesses-seats-and-silencer\/","url_meta":{"origin":448,"position":2},"title":"Build Session 23 : Harnesses, Seats and Silencer","author":"John Martin","date":"October 8, 2017","format":false,"excerpt":"An odds and ends day... but a big one... something to sit on! Having got the passenger compartment carpets installed is seemed only right to have a go at getting more of the finer things in life installed... harnesses and seats... Whoa we can move the seats out from the\u2026","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":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/7950015C-6B20-4879-A764-763321F6EC0D.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/7950015C-6B20-4879-A764-763321F6EC0D.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/7950015C-6B20-4879-A764-763321F6EC0D.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/7950015C-6B20-4879-A764-763321F6EC0D.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/7950015C-6B20-4879-A764-763321F6EC0D.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/11\/7950015C-6B20-4879-A764-763321F6EC0D.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":942,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/10\/07\/build-session-22-scuttle-trim-knee-trim-panels-and-carpets\/","url_meta":{"origin":448,"position":3},"title":"Build Session 22 : Scuttle Trim, Knee Trim Panels and Carpets","author":"John Martin","date":"October 7, 2017","format":false,"excerpt":"Whoa boy... you're getting ahead of yourself! At the end of the last post I said it was time to start thinking about starting the car. I \u201ccould\u201d... but... I'm still unhappy about putting fluids in the car and I clearly hadn\u2019t quadruple checked the quadruple checking I\u2019d been doing!...\u00a0I\u2026","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":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/558FFE8E-B7C6-4B29-AC21-C8E6342CB23F.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/558FFE8E-B7C6-4B29-AC21-C8E6342CB23F.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/558FFE8E-B7C6-4B29-AC21-C8E6342CB23F.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/558FFE8E-B7C6-4B29-AC21-C8E6342CB23F.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/558FFE8E-B7C6-4B29-AC21-C8E6342CB23F.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/558FFE8E-B7C6-4B29-AC21-C8E6342CB23F.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":667,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/08\/25\/email-4-washer-bottle-in-the-boot\/","url_meta":{"origin":448,"position":4},"title":"Email 4 : Washer Bottle in the Boot","author":"John Martin","date":"August 25, 2017","format":false,"excerpt":"Where's the washer bottle... Couldn't sleep so thought I'd look at the washer bottle and get a sense of what needed to be done. The build manual talks about fitting the washer bottle in the engine bay. I'd seen the 420R at Williams a few weeks earlier with it mounted\u2026","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":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_8307.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_8307.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_8307.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_8307.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_8307.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/08\/IMG_8307.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1452,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2017\/10\/22\/build-session-28-boot-floor-fuel-filler-shroud-and-carpets\/","url_meta":{"origin":448,"position":5},"title":"Build Session 28 : Boot &#8211; Floor, Fuel Filler Shroud and Carpets","author":"John Martin","date":"October 22, 2017","format":false,"excerpt":"Ok, so now I'm happy that the engine is running ok and the coolant system is doing its job for the moment. Now onto some more cosmetic stuff at the rear of the car. Boot Floor For such a well put-together kit that Caterham produce, the ply-wood boot floor jars\u2026","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":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3183.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3183.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3183.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3183.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3183.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2017\/10\/IMG_3183.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/comments?post=448"}],"version-history":[{"count":1,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/448\/revisions"}],"predecessor-version":[{"id":10757,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/448\/revisions\/10757"}],"wp:attachment":[{"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/media?parent=448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/categories?post=448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/tags?post=448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}