any random tips for changing the injector orings?

[Pete M]

seems straight forward enough.    it's an 88 4.0

[pizzaman09]

If one stays in the fuel rail, a straight pick will get it out real easily.  Make sure you have 6 o-rings accounted for before installing new ones.  Otherwise, it's an easy job, I did my injectors one at a time when I upgraded to 4 holes.  Just popped the rail back and did them on top of the manifold, expect to cover everything in fuel.  Give it a minute to evaporate before restarting, check for leaks prior to and just after starting.

[fiatslug87]

Lube them with some motor oil. 

[75sv1]

I use Vaseline on the o rings. You should have 12 to start. If you have ones that are brown, those go to the manifold. I'd install them on the rail first. Then push them all as a unit. I think I had some issues the injectors in the manifold, to get the tops aligned in the fuel rail. 

[75sv1]

They also have a specific lube for o rings at the hardware store. I'd think trans fluid would be OK or even Power steering fluid. 

[scguy]

We always use Vaseline at the shop. Works great. 

[Pete M]

welp, the work is done.  but I wasn't able to verify it's fixed due to some other issues.