Jump to content
SAU Community

Engine Problems, help please

XEQTOR

By XEQTOR,
in Engines & Forced Induction

 Share

Recommended Posts

XEQTOR Community Regular

XEQTOR

Posted
Posted

Whilst driving along F3 awhile ago I noticed whilst going up a slight hill I noticed the engine wouldnt make boost. No major loud noises or bangs, just literally became sluggish.

Managed to limp it home, car drove fine until boost started to come on, once the boost gauge was reading 0-1psi the needle started to jutter and lots of black smoke out the back of the car not to mention that it jerked like a dog!!!!

Figured I had done the turbo, seems as though its had 15psi through stocko turbo over last 12months. Got car on a hoist last weekend and changed turbo to a high flow (thanx mark MRK25T), found some shaft play in old turbo but otherwise was in good condition. Hence , not turbo related!! Bugger....

Anyhows, did compression test: Cylinder 1= 150psi

2= 155psi

3= 150psi

4= 155psi

5= 160psi

6= 160psi

All these figures appear to be ok to me, hence nothing internal damaged.

whilst doing the comp test noticed that ALL 6 Iridium plugs were fouled badly by black shyte!!They had been in the car for at least 7,000km, so they were old. Got some standard non iridium replacement plugs to test the car, car ran ok. Boost guage reads 15psi fine and stable but car is running like a maggot!!! I mean the 4cyl charade i been driving around in makes more power!! LOL

Now has major sucking or blowing sound under bonnet but at moment im deaf in one ear due to an ear cleaning accident gone horribly wrong so i cant hear this noise properly.

Anyone got any ideas????

Its due for a major service, so whilst the car is at Unique Autosports Im thinking of getting them to fix this elusive problem, but would prefer to have an idea of what it is in case i can do it myself???

Thanx guys....

Link to comment
https://www.sau.com.au/forums/topic/35116-engine-problems-help-please/
Share on other sites
Blitz Grand Master

Blitz

Posted
Posted

Sounds potentially like a few things Brad - check for leaks especially around your intercooler piping.

Thankfully knowing that the compression test came up well it sounds like its not terminal - im sure the boys at UAS will be able to fix it pretty quickly.

MRK25T Experienced

MRK25T

Posted
Posted

I hope its something small, easy to fix, quick to fix an inexpensive Brad.

I've never had my car off the road except for when I added mods to the car. It took 1 week to get that turbo high flowed and it was horrible not having a car.

Nick's team at Unique should be able to help out.

Just an interesting thing that I heard last week, a friend at work was having problems with his 180. The workshop I take my car to found that there was a holden part a northern beaches workshop had used instead of the nissan part. The parts looked similar and it was only because the mechanic has worked on these type of cars for years that he knew the difference. The part was replaced and the owner has been as happy as larry ever since.

Unique work with Skylines all the time so your in good hands. Keep us in the loop.

B-Man Grand Master

B-Man

Posted
Posted

I'm with Nick - Cooler piping has a leak. Black smoke indicates richness. ie Not enuff air getting in there.

Might be an exahust manifold leak - ie Gasket -

UAS should be able to diagnose and fix real quick.

Check all the pipes and tubes yourself

If compression OK don't worry - those readings look good too me.

Should be an easy fix Brad - You are lucky !

XEQTOR Community Regular

XEQTOR

Posted
  • Author
Posted

Ive checked all the piping and they all seem to be fine, no splits or cracks cracks. Its buggin the hell out of me!!!!!!!!!!! Cars been off road now for 5 weeks and its killing me driving this charade around, since when do you change back to 3rd on the F3???? LOL

Looks like i will have to bite the bullet and get it to UAS for diagnoses, fix, and a service.

Well, there goes the 3040 andthe likes! BUGGER!!!

Thanx anyways guys.

  • 2 weeks later...
XEQTOR Community Regular

XEQTOR

Posted
  • Author
Posted

Picked up car from UNIQUE AUTO SPORTS yesterday post major service and what not. EXTREMELY HAPPY with the service done on the car, its like a brand new car!!!!!!!! My 265's are not getting traction now! WOOOO HOOOO

TOTALLY RECOMMEND UNIQUE AUTO SPORTS FOR THIS!!!!!

Turns out the problem was a cracked 90o bend intercooler hose! The only bloody one i didnt check!!!!!!!

XEQTOR Community Regular

XEQTOR

Posted
  • Author
Posted

Yep! Was a great call!!! Especially considering i checked and rechecked them bloody hoses!! Thanx to everyone to chipped in some advice!!!! Owell, least now I can start to look at a bigger turbo upgrade more seriously.

Hmmmmmmmm 3040 or 3530........... decisions decisions............

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Murray_Calavera
      Steps to DIY sanding car back ready for respray....

      By Murray_Calavera · Posted

      You beat me to it, I was going to say this -  And this -  Sounds like things are coming along pretty well and your learning heaps along the way. 
    • sav man
      Ben's R32 Gtst Build

      By sav man · Posted

      It's the same ABS unit from the old shell.  It was all just lifted and shifted.  I am looking at the BMW MK60 ABS unit as a budget upgrade, as I'm not keen on handing over 15k for a Bosch unit.  
    • soviet_merlin
      Pops when backing off throttle, rough-ish sound through rev range.

      By soviet_merlin · Posted

      Bear in mind RBs tend to be pretty terrible for fuel economy and it heavily depends on driving style. In my experience with a heavy-ass turbo Stagea the 10l/100km is really just ideal conditions highway driving. Start-stop in the city is killer and it ends up being 16-19l/100km easily. I keep track of it every time I get fuel and it is never pretty. There are a few topics in the forums where people share their fuel economy if you want to get some ideas of what it can be like. I don't think it is worth that much to compare though because it depends so much on the driving.
    • GTSBoy
      R32 GTR Limp Mode?

      By GTSBoy · Posted

      R32 HICAS, so long as the CU is not itself faulty, is easy to keep working enough for the PS. Just unplug the smaller of the two loom plugs, on the CU, like I have already said about 4000 times on this forum. This works with all the stock hardware, or with a lock bar, or with a complete removal. I know, because I have done all of them. OK, actually, I never put a lock bar on because why would you put a lock bar on when you can get rid of the whole lot, including the stupid tie rod ends?
    • joshuaho96
      R32 GTR Limp Mode?

      By joshuaho96 · Posted

      Join the NorCal facebook group btw, but if you can confirm it is HICAS I would install a lock bar and do the work to keep the HICAS control unit happy despite the hardware not functioning. The HICAS control unit is also responsible for speed sensitive power steering so if it's unhappy you'll get failsafe/heavy power steering. A standalone can control that power steering solenoid valve but sometimes it's just easier to stick with the factory setup. Tomei makes a little electronic module that you can install to fool the control unit. I would probably go through the effort to not use a scotch-lok and build a harness so I don't have to chop up the OEM harness. Where you could source those connectors and pins I wouldn't know at the moment though.
×
×
  • Create New...