Jump to content
SAU Community

Recommended Posts

hey guys

need some good advice on what to do

well i just bought new injectors from here... and i looked at the engine and it looks like we have to take out the plenum to take out the fuel rails. does anyone here know that if we take out the plenum... will the gasket break or do we have to replace a new one. if it doesn't... then i can do a home job :D but if it does... i guess its more safer to get professionals to do it >.<

thx all in advance

Link to comment
https://www.sau.com.au/forums/topic/117819-help-on-changin-injectors/
Share on other sites

i did my one my self, i hated it, bastard of a job, but labours expensive!! u need a 12 or 14mm socket and extention to get to the bottom studs.. i used a ratchet spanner for the easier ones.. good luck

i was only charger $250 for the job :D if u shop around u can get some pretty ok pricers :D

dam $250 for labour... thats alot aye...

thx for the reply...

also... umm... the top half of the plenum... if u unscrew it... does it stuff up the gasket.. anyone know ?

no its a rubber gasket. as long as it isnt ripped etc, re use it

You dont need to take the plenum off.

I've swapped injectors in 2 different rb25's and an rb20, about all you need is a set of pliers and a 1/4 inch socket set and you can slide the rail out the front.

It's a bit easier if you remove the throttle body. It's a 2 hour job max, including removing the old injectors, installing the new ones and reinstalling the rail.

Well going by your user name you have an R34.

The rail will not slide out the front without removing the plenum. It comes oh so close but I tried for ages and it wouldn't come. The gasket is not rubber either but if you're careful you can reuse it no worries.

There are 3 bolts holding it on from underneath and they are all bastards. You need a 1/4 inch drive socket set to get them out. I think they are 12mm but could be 10mm.

Impedance is an electrical term. Did you mean to use that? What injectors do you have and what engine?

Well going by your user name you have an R34.

The rail will not slide out the front without removing the plenum. It comes oh so close but I tried for ages and it wouldn't come. The gasket is not rubber either but if you're careful you can reuse it no worries.

There are 3 bolts holding it on from underneath and they are all bastards. You need a 1/4 inch drive socket set to get them out. I think they are 12mm but could be 10mm.

Impedance is an electrical term. Did you mean to use that? What injectors do you have and what engine?

yes i did because if the injectors are different the std ecu will not operate them properly, there is high impedance and low impedance injectors (99%sure of this?)

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

    • I havent bought a manual cover for the dash yet and no cluster change, won't bother me too much, I just need to get that auto box gone, manual in! I miss my manual. 🤪. We started last weekend and managed to get the box out. Planning to start putting it in this weekend and then order a single piece tail. We were super careful to take time and not damage anything. It's my first time working under the car.  With my S15 mainly worked in the bay. This time, it was a headache because of three or four bolts only. They simply didnt want to leave thei homr and the one securing the tailshaft, another above the GB, and the one securing the lipstick was a shit. Mates mate, Davo caught fire 🤣, nearly opened his chest up with a grinder 🤦🏽‍♂️ and both mates nearly had a plate from the box land and slit their head open. Fun times. We all survived. Not the easiest working with limited access on jackstands. As I'm sure we can agree these are the memories which make us love our car. For all three of us, was an awesome weekend and Sunday 3.30am before tools down was a fantastic effort. I need to upload pics, but looks like it needs to be via Url now. We used to be able to just upload pics back in the day. It's been that long! 🤪 Im currently spraying rustoleum under body, not because it's rusted. It's super clean, but just so it's protected for the next 10 years. There was a few surface rust spots. Which pretty much wiped off with a 3M scourer.  Really impressed with how well the previous owner maintained it. Bank account went down so quick! Service, then GB - managed to get a spanking new 34 genuine box from Nissan. All the rest of the conversion parts from Kudos.  Went with a Nismo short shifter. New pedals and Exedy Clutch and FW. Ordered the Prp Rear Main Retainer kit which should arrive Friday and my first engine mod part just like I did with my S15 will be the Tomei Expreme Turbo Outlet. Already on order. It'll likely sleep next to me on a pillow during the coming months. 🥰 Last build was on my JET200GT profile and on SAU and Hardtuned I had documented the build. Planning to try to do that again. Brands feel scarce now. Wish we still had ARC and Apexi parts readily available. Exhaust - need some advice on this. I had an Apexi exhaust on the S15 and loved the tone. My mate had a HKS HP Silent on his 33 and suggested I go with that to avoid drone. I can't remember hearing an RB25DET running that so will likely need to wait for a meet or something to hear it.  Not after big power, just enjoy building it, and drivability with minimal negative attention.
    • Have a chat with Ben at Moore Performance or Jesse at JS Performance.
    • Thanks both. All good advice. Reminds me of drilling through stone wall for drainage pipe 😬 I'll let you know how I get on if I still have use of my hands afterwards 😅
    • Finally got shipping number for the intake and throttle body, shipped by UPS, so "should" be in my hands sometime next week, fingers fracking crossed
    • I'm so far behind in the jobs I have to do at both work and home (including car) that I have become immortal. There's simply no way that I can die now.
×
×
  • Create New...