Editing Fuel Injector Replacement (section)

== Refitting the fuel rail & manifold:==

From here you should have your injectors on the fuel rail, the regulator fitted back to the rail and all the small o-rings should be on the end of the injector on the side that goes into the port. In the case of the new injectors there were little red caps on all the injectors at the fuel delivery end, remove these and the small sealing o-ring is already fitted. Using reco'd or second hand injectors, make sure you replace the o-rings, otherwise you're taking the risk of a fuel leak. It's a good idea to smear a little rubber grease on the outside of the o-ring to ease it into the inlet port.

I'll stress here that using rubber grease is important and not Vaseline or petroleum jelly as such because rubber grease won't perish the o-ring. Petroleum based greases can ruin the seal faster and dry them up easier.

Bolt the rail and injectors in, making sure to start all bolts before tightening any of them, otherwise you'll find injectors don't seat properly and the rail is awkwardly lined up. Start everything by hand first. Tighten all bolts up. You can now also fit the supply and return fuel hoses & tighten the clamps.

Before you put the manifold back on, clip all the injector connectors back on and fit the U clips and ensure they're all tight and sequenced correct.

Fit the top half of the manifold and start all the 7 bolts that hold it together. Remember on the underside the shorter bolt of the three goes in the middle. Once all started and seated, tighten them up, remember its alloy so start inside and work out, and don't over tighten them. Again, a new gasket is unnecessary, just make sure no large bits of dirt or grime as on the sealing surfaces.

Connect all the electrical connectors, vacuum and cooling hoses removed before hand. Making sure you get all the small vacuum lines on. One under the throttle butterfly, one on the front of the manifold towards the PCV valve, another at the rear of the plenum. Make sure you don't leave any coolant hose clamps off or stuck half way down a hose. 

Once everything is connected that you previously removed finish fitting the throttle cable and induction piping.

Prime the fuel system by turning the key to IGN and listen for the fuel pump.