Jump to content
SAU Community

Recommended Posts

Hey guys,

My skyline (R34 25GT) had the engine check light come on quite some time ago, after awhile (didn't drive it much during this period) I got it checked out by andrew at hyperdrive malaga and found it was an ignition fault. seeing as the car is about 95,000kms old and was due for the 100,000km service i changed the sparkies to coppers as recommended by andrew as well as the coilpacks.

just got the car back not long ago, and the engine light is gone, but now at idle, the car makes a slightly odd noise ...

its almost like a mini explosion/popping sound (sorry thats the best i can describe it .. )

the car is fine when running though and drives well and everything performs as normal

i have no idea what this is, but it feels very weird and its happening more often. anybody have a clue what it is?

also, on a slightly different note, is it normal for my car to be LOUDER than usual initially when i make any changes to the exhaust system?

i changed the muffler on the end to a mild steel oval from a stainless cannon and it seems to be in fact louder .. although apparently the cannon had a crack in it and was louder than it should be.

but I found that when i first changed to the 2.5" catback system, the car was very loud initially and after a few weeks quietened down a fair bit... i'm hoping the same happens here cos its ridiculously loud now and i was hoping to quiet it down a bit :|

i'll leave it for a few more weeks and if nothing changes i may just stick the stock exhaust back on! (i kept that sitting around the side of my house lol)

cheers everyone :)

Link to comment
https://www.sau.com.au/forums/topic/374897-not-too-sure-what-the-problem-is/
Share on other sites

The packing in the mufflers need to settle and fill out. Then they will be a little quieter.

With the popping noise, if its only on idle then that is very normal or RB motors. Most do it but u mainly notice it with a louder exhaust system

thats strange, i was confident i wouldn't get ripped off by hyperdrive, the guys there have been highly recommended by most people on the WA forums and are a SAUWA sponsor ...

the price was 450 total for the coilpacks + copper sparkies + labour ...

ive also been told by 3 different mechanics in perth that the R34 coilpacks/sparkies are notoriously difficult to change due to it being in a difficult spot to reach?

they are lying basically..

it's really same as any other RB25/20, you take off the intake piping to the throttle body, disconnect a few hoses and remove the valley cover - only real difference is there is a few more hoses..

i removed and replaced me coilpacks in my r34 in just under an hour a few days ago, for mechanics that are meant to do this shit every day it should be a peice of piss.

they are lying basically..

it's really same as any other RB25/20, you take off the intake piping to the throttle body, disconnect a few hoses and remove the valley cover - only real difference is there is a few more hoses..

i removed and replaced me coilpacks in my r34 in just under an hour a few days ago, for mechanics that are meant to do this shit every day it should be a peice of piss.

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 had 3 counts over the last couple of weeks once where i got stranded at a jdm paint yard booking in some work. 2nd time was moving the car into the drive way for the inspection and the 3rd was during the inspection for the co2 leak test. Fix: 1st, car off for a hour and half disconnected battery 10mins 4th try car started 2nd, 5th try started 3rd, countless time starting disconnected battery dude was under the hood listening to the starting sequence fuel pump ect.   
    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...