Keith D Posted July 21 Share Posted July 21 (edited) The standard cats have a captive screw for fitting to the bracket that bolts across the underside of the transmission bellhousing. Hope I've explained that well enough. I've had to fit the standard cats back on as I've got one of those cars that just can't pass an MOT with 300 cel HFCs despite how hot I get it and how much cat/injector cleaner I put in the fuel. Best I've got the Co2 is 0.4%. My inspector is visibly willing it to pass every retest. Lamba and HC pass. I've put the standard CATs back on for a re-re-re-test but I can't find the nuts for the captive bolts. It looks close to an M10 but an M10 won't fit. Anyone know the size? Imperial maybe? Edited July 21 by Keith D Quote Link to comment Share on other sites More sharing options...
Adrian@TORQEN Posted July 21 Share Posted July 21 1.25 pitch, I suspect you're trying M10 1.50 1 Quote Link to comment Share on other sites More sharing options...
Adrian@TORQEN Posted July 21 Share Posted July 21 Are these the ones you're after? 1 Quote Link to comment Share on other sites More sharing options...
Keith D Posted July 21 Author Share Posted July 21 Quote Link to comment Share on other sites More sharing options...
Keith D Posted July 23 Author Share Posted July 23 (edited) 7/16 - 20 UNF, in case anyone should ever want to know Edited July 23 by Keith D 1 Quote Link to comment Share on other sites More sharing options...
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