Jump to content
SAU Community

Recommended Posts

heya,

got a quickie for ya's

Installed 6x 550cc Siemens injectors into my rb26dett

The injectors came with 2x orings up top and 1 grommet down bottom.

For installation, does 1 oring go inside the fuel rail when slipping in the injector, and the other oring sits outside? ie squeezed between fuel rail & injector?

creates an inner seal inside the fuel rail with oring

creates an outer seal between injectors and rail.

is this correct? or is only 1 oring used (inside the fuel rail)

Link to comment
https://www.sau.com.au/forums/topic/308448-r32-gtr-injector-installation/
Share on other sites

I have the seimens 550s. Mine came with a large single o-ring at the top, a couple of which leaked after a short while. When i pulled them to check they had torn. Replaced all six with the factory o rings pushed down to the bottom of the mounting area, and they have been perfect since.

thank you.

I used a little bit of degreaser on the orings to help slide them in ok.

One oring at the top inside to create an internal seal, another lowered onto the injector body to create an external seal where the injector body meets to fuel rail

orings were the same size tho. no big deal. once tightened down with the 2 fuel rail bolts it seems ok.

Havent fired it up yet, working on fuel system atm

(surge tank, braided fuel line, external 305lph walbro, internal gtr pump, + just finishing off radiator upgrade & oil filter relocation kit)

awaiting a $15 gtr remap chip, then will try firing up the engine

thanks again for the advice

quickie

with the injectors installed being 550cc, and dead stock ecu...

the car "shouldnt' start, right?

it may start but be very very rich. If it doesn't start it would have already fouled the plugs.

careful with the grease used, it must tolerate petrol. pulled my fuel rail off the other day and the injectors were siezed in place, the grease had broken down.

next time just wd40 for me

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • No-one in Aus/NZ would pay that much, because they remember when a turbo Skyline/Silvia was a cheap but awesome alternative to the mediocre shit sold here locally at the time. I'm sure over in USA there are enough trust fund kids who will have their R34 GTR, whatever the cost
    • I am stuck with enthusiast and very unhappy, even though Lumley, Shannons and Famous are all options, they all require a lock up garage, and my situation (basically a walled off compound from the street) is insufficient because the car is under a carport. I'm confident to resolve the situation I need to build a roller door with fascia in-front of my roller gate which is a solid opaque metal rolling gate. In any other universe moving the roller door 2 meters in-front of the garage door would still constitute the same amount of security but oh no. My insurance rates suck to the point of when I joined a market research for Enthusiast they were all surprised that I paid about 2-3x what other people were paying with Enthusiast when I asked them why their rates were so high. If I lie about having a garage, I save like $10 a month with enthusiast. (It's about $2600 p.a for 5000km of driving for a very unsustainable agreed value). Lumley has terrible reviews but @Duncan made me consider calling them when renew time came up - but their horrible reviews plus Christmas time made me... forget.
    • Not far. If all you want to do is know that they will reciprocate and move oil around a tiny bit, then a metre or so is all you need. Half metre fore and aft is enough.
    • That's the spirit!
    • It's fine. Basically if it has seized (eg due to moisture/rust in the bores) it will either break free on the starter or it won't turn....then you'll know it is freed up If it turns and doesn't start (reasonably likely) you will need to troubleshoot but most likely issue is a seized injector from moisture; same if it starts but missfires. Anything else could have happened (eg mice nibbling electricals) but the only way to find out is to close your eyes and hit the key I'd also change the fuel filter again after a few minutes of running as it may catch a heap of crap on first start
×
×
  • Create New...