CtrMint Posted March 3, 2020 Share Posted March 3, 2020 HI All, I think I missed something on my 420R build, I recently spotted the difference on my factory 620R. As I'm not sure of the part I missed, I thought I'd post, see if the experts can help spot what the part is on the CC parts site. Thanks in advance.The 620 has what I would call an insert or cover in the mounting boss just forward of the roll bar mount. Sorry not sure what it's called. Anyone know what part I missing, thanks620420R Link to comment Share on other sites More sharing options...
StevehS3 Posted March 4, 2020 Share Posted March 4, 2020 Hi Mark, I don't think you have missed anything. My current 7 and my previous had nothing in those holes. I had a couple of spare harness bolts and these plastic caps so fitted those on this car just so it looks a bit finished but they don't do anything. https://caterhamparts.co.uk/other-grommets/241-cap-seat-belt-fixing-shoulder-mounting.html?search_query=Cap&results=141Edited to say I crossed with Jonathan and I remember now that my car had inertia reel belts when I got it and I think they were used for that. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted March 4, 2020 Member Share Posted March 4, 2020 Is that the unused inertia reel mounting?Jonathan Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted March 4, 2020 Share Posted March 4, 2020 Yes they are for the inertia reel belt top mounts. I have both harnesses and belts on mine, as the inertia reel belts have to be fitted to be road legal in Canada. The belt guide hides the painted mount underneath. Link to comment Share on other sites More sharing options...
ChrisC Posted March 4, 2020 Share Posted March 4, 2020 With my 420R kit one of the seat belt boxes had four plastic nut covers and two rubber bungs in a bag tapped to it. It looks like the two rubber bungs are for the inertia reel belt mounting holes. Also found it https://caterhamparts.co.uk/seatbelts-harnesses/783-grommet-seatbelt-blanking-a-clutch-fork.html Link to comment Share on other sites More sharing options...
Area Representative Nick Chan Posted March 4, 2020 Area Representative Share Posted March 4, 2020 Yep just simple plugs to tidy up the look and stop water going in the holes. I used a bit of silicone for the same effect Link to comment Share on other sites More sharing options...
CtrMint Posted March 4, 2020 Author Share Posted March 4, 2020 Thank you to everyone that has commented. ChrisC the link is brilliant, really appreciate that. I'll have one last look through the remaining build items before ordering. Link to comment Share on other sites More sharing options...
Mark w Posted March 4, 2020 Share Posted March 4, 2020 My 620 doesnt have these bosses .The early 620 cars were built with a special chassis which was specific to the 620 and left off non essential items , these redundant bosses were one of the modifications made . It looks neater and is lighter without them . It was soon realised that producing a special chassis for one model was a hassle so production soon reverted to the standard chassis .There you go , a bit of random information .... not a lot of people knew that ! Link to comment Share on other sites More sharing options...
CtrMint Posted March 5, 2020 Author Share Posted March 5, 2020 It's interesting to see that my two chassis differ in terms of paint coverage. On the 420 the mount is body coloured as seen in the photos. On the 620 it's not. The 620 looks normal, just an interesting difference. Link to comment Share on other sites More sharing options...
ChrisC Posted March 5, 2020 Share Posted March 5, 2020 Does your 620 have a different colour chassis?Obviously Caterham took painting in house and stopped using TSK. I suspect based on age both of your cars where painted by Caterham not TSK. But even if that section of the frame wasn't panted it should be the powder coat colour, normally black obviously. Your 620 chassis almost looks silver, from the photo. Link to comment Share on other sites More sharing options...
Mark w Posted March 5, 2020 Share Posted March 5, 2020 All 620 have a sort of gun metal grey coloured chassis to differentiate from the normal black . Link to comment Share on other sites More sharing options...
ChrisC Posted March 5, 2020 Share Posted March 5, 2020 Nice :-) Link to comment Share on other sites More sharing options...
CtrMint Posted March 5, 2020 Author Share Posted March 5, 2020 Yeah I'd say it was gun metal in finish. Link to comment Share on other sites More sharing options...
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