Jump to content
SAU Community

Recommended Posts

I've recently bought a 32 and have sometimes noticed a whiff of petrol when parked and sometimes when driving. I had a look around in the engine bay and noticed it was a bit damp and dirty around a few of the injectors. I've done a search and found it seems to be common occurance with rb20s.

My question is, is it something dangerous that needs fixing asap? Could I go through a drift/track day with it?

Any help would be appreciated

Cheers

Link to comment
https://www.sau.com.au/forums/topic/231436-leaky-injectors/
Share on other sites

think about it like this, you have fuel leaking out of a pressurised source into a hot engine bay.

so a highly flameable material next to a whole heap of heat, and if it leaks a lil more and has a bit of a spray instead, and it gets on the exhaust then yeah, big trouble

if you have a car problem related to one of these

FUEL

BRAKES

SUSPENTION

then get it fixed immeditatly

Link to comment
https://www.sau.com.au/forums/topic/231436-leaky-injectors/#findComment-4064543
Share on other sites

Time for some GTR injectors
No it's not. That would entail a re-tune to compensate for the higher amounts of fuel that would be delivered on each opening of the injector.

Get the injectors looked at. They may be repairable. If not, then replace them with RB20 injectors.

Link to comment
https://www.sau.com.au/forums/topic/231436-leaky-injectors/#findComment-4065412
Share on other sites

Very common.

Clean the effected area to locate the exact spot of the leak. Its most likely from

- the o-ring up top

- upper insulator

- lower insulator

- the injector body itself (the plastic part where theres an indent from the injection molding

Nissan OEM seal/insulator are about $80'ish I think, though theres a link on SAU from a guy who sells them for dollars.

Iv never done it, though guess you could pressurize the FPR to simulate having some boost / load under it; proper rail pressure would assist in locating leak.

Link to comment
https://www.sau.com.au/forums/topic/231436-leaky-injectors/#findComment-4067376
Share on other sites

I had an issue in my 180sx as well, was a pinched 0-ring, took the injectors out, replaced all the 0-rings and had the injectors ultrasonically cleaned while out of the car.

Turns out, my injectors where so far gone that 3 of the 4 where stock open to some degree, and the 4th was spraying all over the place. Cleaned the injectors, re-fitted them with new o-rings.

The difference was amazing, and something else that I found was the injectors being stuck open mean that fuel was leaking into the cylinder when the engine was shut off, and if left overnight would eventually soak down into the sump and foul the oil as well, so I had seriously thin oil, and fuel leaking outside of the engine.

Also, as Adam said, any track that is worth bothering about will spot the leaking injector patch and immediately turn the car around as a risk.

Thanks,

B.

Link to comment
https://www.sau.com.au/forums/topic/231436-leaky-injectors/#findComment-4068686
Share on other sites

Also going to check out my O2 sensor as my fuel economy is rubbish!

You have confirmed you have leaking injectors, and then you say you have poor fuel econemy, I am going to sound a little smart-arse here, but I would put some of that poor fuel econemy to the fuelt hat is leaking out of the engine block and vanishing down the side of the block, instead of into the cylinders for combustion.

Make sense?

B.

Link to comment
https://www.sau.com.au/forums/topic/231436-leaky-injectors/#findComment-4069239
Share on other sites

On the way home from work I gave the car a quick squirt down my road and I heard the injector start ticking. Popped the bonnet and there was a shitload of fuel around #3 injector. Almost dripping out.

I've stopped driving the car untill I get it fixed now :worship:

Link to comment
https://www.sau.com.au/forums/topic/231436-leaky-injectors/#findComment-4073392
Share on other sites

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

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...