don_g Posted October 27, 2020 Share Posted October 27, 2020 Hi All, I'm fitting Powerflex bushes throughout my BDR Seven that I built way back in 1991. I'd appreciate some help from this excellent forum. All is going well apart from a problem with the rear upper wishbone bush. All the diagrams I've seen show a bush for this upper wishbone has a 3/8" bore and requires a PF908-904. However, this rear upper bore is 1/2"! All upper and lower wishbone bores are 1/2" (and use a PF8-901) except for the upper wishbone front (which uses a PF8-902 and the included special 3/8" bolt). There is nowhere to fit the PF908-904 bush and it appears to be redundant on my Seven! I'd appreciate your thoughts...Many thanks, Don Link to comment Share on other sites More sharing options...
don_g Posted October 27, 2020 Author Share Posted October 27, 2020 I now have a result! Simon at Meteor Motorsport (what a knowledgeable guy!) has solved the problem; there really is no-where to fit the PF8-904 on a 1991 Caterham.Powerflex's diagram for the Imperial, non-watts linkage Caterham is incorrect as it doesn't include a 'pre 1996 chassis which, like mine, has the front, rear wishbone bush pivoting on a 1/2" bolt. PF8-901 is required in this position.Thanks so much to Simon at Meteor for solving the problem. I wish I'd bought all my Powerflex bearings from him - it would have saved me a lot of trouble. Link to comment Share on other sites More sharing options...
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