Injector heat shields

[Basher]

Does anyone have the part number for the injector seals suitable for a 91 d24tdic and possibly the name of a supplier in the uk?

Bought a pop tester and have an ultrasonic bath so going to check the injectors while doing the belts and glow plugs, getting a bit of smoke on start up and acceleration so trying to limit that, so as il have her off the road I thought I might as well clean them.

Also anyone know of a suitable dti gauge to buy to check the pump timing?

Thanks