Billy.Whizz Posted June 12, 2021 Share Posted June 12, 2021 Driving home from picking up my new car from CC I could hear a clattering metalic sound when passing over anything other than a smooth surface, I thought it might be the hood sticks clanging together, it wasn't then I thought it may be the RARB it wasn't that either so because it was quite a loud noise i took it back to CC, it turned out to be the rear brake pads rattling about, so they bent the spring tensioner a bit more to hold the pads down in place and the problem has been solved. Link to comment Share on other sites More sharing options...
GulfSeven Posted June 12, 2021 Share Posted June 12, 2021 #25 Do you know when they started fitting these to factory cars. Would it be on my 2020 310R? Is there any way I can check? Link to comment Share on other sites More sharing options...
john hooper Posted June 12, 2021 Share Posted June 12, 2021 Thanks for the info. I would never of found it there. Link to comment Share on other sites More sharing options...
ChrisC Posted June 12, 2021 Share Posted June 12, 2021 It wasn't in my kit delivered October 2019, it was in a kit delivered January 2021. So sometime between those two dates. The gearbox angle may be different between a Sigma and Duratec engine cars, so might not have the same impact as it did on my car. The funny thing was, after I discovered it, I spoke to Caterham Gatwick to see if it assist with my problem, and they where unaware of it at the time. Link to comment Share on other sites More sharing options...
ScottR400D Posted June 12, 2021 Share Posted June 12, 2021 The Duratec, certainly with a 6 speed slopes down by, nominally, 2 degrees at the front to aid hood clearance. The BMW diff, for unknown reasons slopes down by, again nominally, 4 degrees. It does look like it would require other compromises in its location to get it horizontal. If the Mazda box without a spacer is nearer to or is horizontal then the prop shaft flanges could be out of parallel by 3-4 degrees. The resulting variable rotational speed of the prop could then cause diff noise. IMO. Fitting the spacer could only help. I was told by RRT about the engine tilt. I 'asked an expert' at CC who answered "I have no idea' but subsequent measurements on my and other similar cars were consistently as above. It might not always be so. The thing is that, supposedly, the Sigmas are mounted horizontally so you'd expect them to be worse, unless the increased power and torque of the Duratec plays a part, which could well be the case. Link to comment Share on other sites More sharing options...
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