Just put my modified 4x4 (i think) fuel rail, with aeroquip fittings welded on, onto my new ST escort inlet with rochester 1000cc injectors and i get a fair bit of movement in and out of the rail/head, not enough to reveal the o ring either end but too enough to worry me slightly
ive read a thread from a while back with people saying this was a problem with some billet rails but this is all OE stuff apart from the injectors
also did the 2wd or 4x4 rails have injector clips? as the ST fuel rail i have taken off (i want to keep the aeroquip fittings) used proper clips to keep them secure.
Thanks.

 

you can just about see the rail here

 

i cant help with question but make 100% sure they cant leak fella, i narrowly avoided total meltdown 4 weeks ago due to leaking fuel on boost from a dodgy rail/injector set up !

 

have you fitted the clips?

 

All standard fit Cosworth fuel rails use the same clips, refit the ones from your ST rail onto the new one.

 

All the std rails I've seen have clips, there is often the odd mm or two of movement, but so long as they are a snug-tight fit in the rail/inlet will be ok if only a few mm, they won't move in use, more movement than this and I'd be worried about wearing a flat on a seal.
tabetha

 

There are no clips on the injectors.

Mark

 

The fuel rail on the old engine never had any clips fitted with the greens, i never tried fitting them last night as i presumed they were different and i had so much else to do, Will pop them on tomorrow