... be possible to hold the track gauge at that point if the fishplate bolts were loose? Thanks for the info you provided. I order the 'Rodding' book last night. As it follows on from the track book it is likely well worth the price. You can never have too many books.... Rob posted: 16 Feb 2019 19:09 from: Martin Wynne Hi Rob, I didn't quite follow that? I have marked up the photo (which I should have done in the first place): 2_161247_070000000.jpg At A I think I can see the top corner of a fishplate. If it was bolted tight it would be flush with the rail head. Which suggests that the bolts in the closure rail are quite loose (and maybe tight in the switch rail?). Here's a drawing of BH fishplates: 2_161306_210000000.png It's clear that if the bolts are not tight, not only can the rail move sideways as intended, but it's also not held firm in vertical alignment. So you wouldn't want to slack the bolts by more ...