Jump to content
SAU Community

Recommended Posts

Oh dear,

I leant my step brother my car last night while in Brisbane, I got it back today, NO scraches so i was happy.. But then started the beast, Warmed her up, and then driving off i hear a clunk, clunk clunk about 3000rpm's... :pissed: So i got refered to an un named dyno performance place near where i live and they "didnt even have time to LOOK" So after being put ro 3 other places who all said different things i was wondereing if anyone here can suggest a "good" place to take my poor car!!!

I am supposed to drive back to canberra next thursday. But plans will change...

Cheers

Link to comment
https://www.sau.com.au/forums/topic/53406-3000rpm-and-a-clunking-starts/
Share on other sites

Not sure... I got it back last night and was on morphine :gaga:( i had a back operation 4 months ago) and thats why i said yes to him for a drive.. BIG MISTAKE!!!

But i just have seen another place who works on heads and race engines and he thinks it has skipped a cog on the timing chain cause the idol is now sitting abourt 1200rpm... Strange.. But thats all i hope it is..

Damn i'd be a little pissed! I just thought about it for a second and he could be right in saying it mite be the timing because if the clunking your describing is pre detonating it all adds up. Higher idle would also be the case. A tell tale sign would be a loose cam belt. If thats loose then its obviously easier for it to slip. So hopefully thats all it is and hopefully no engine damage has occured. Good luck with it mate. A nice GTR by the looks ;-) I'd be interested to hear what happens.

is it a clunk from the rear? i had a simiilar "clunk" on my r33 when i went past 3000 ish it turned out to be a suspension arm thingy was loose and would only "clunk" with a certain amount of force from acceleration, aka acceling past 3 grand. mechanic just tightened the suspension, after that problem gone

Once upon a time i used to own a gemini.Auto might i add.It had 3 motors put in by myself and a little help from friends.The 2nd motor which was built professionally.One night whilst driving down the m4 motorway had a terrible tapping sound that only seemed to get louder as the revs rose then all of a sudden nothing.....We later pulled the motor apart to realise that a conrod main bolt had worked its way loose only leaving 1 bolt to hold it to the crank.+ the revs added to letting it sail into a valve......Was not impressed that night.

Once upon a time i used to own a gemini.Auto might i add.It had 3 motors put in by myself and a little help from friends.The 2nd motor which was built professionally.One night whilst driving down the m4 motorway had a terrible tapping sound that only seemed to get louder as the revs rose then all of a sudden nothing.....We later pulled the motor apart to realise that a conrod main bolt had worked its way loose only leaving 1 bolt to hold it to the crank.+ the revs added to letting it sail into a valve......Was not impressed that night.

Well, I took it to Rahams in redcliffe who looked at the timing, They said it was spot on, No skipped cog or anything, Now i am starting to stress, They seem to think a change in oil from mobil 1 to start with to catrol r synthetic then back to mobil1 might have cause it cause they say that mobil 1 is not great for over head cam engines. They are 'almost' certain that its not a piston cause of the inconsistant noise... it comes and goes :confused: .

I just drove it home, It has no loss of power that i can notice.

Any advice or help regarding how to deal with this would be great, I yet have to get it back to canberra..

thanks for takin the time to read.

Chees Phil.

predator: could be number of things.. clutch..gearbox.. front diff (GTR right?) .. more likely to be front diff..

Na cant be the front diff cause it happens wile the car is still with bonnet up and reving the car, I have been advised that changing oil from Castrol racing r oil to mobil 1 and then using the higher ultimate petrol from BP up here could just have cleaned out the carbon from the engine, So i was told to change the oil back to castrol, Cause their has been a little bit more than usual black smoke than i have seen before, but no loss of power, Clutch, Yes maybe as i has slipped a liitle of recent. but to start i will change oil and then go from there i think..

Ok, Well, The f@#ken mechanic that looked at my car on Friday checked my cam timing and cam noise to see if there was any problems, As a few of you may know, YOU ARE WRONG ABOUT IT BEING THE OIL GRADE YOU!! :headshot: Oh this is 'g' rated isn't it... Anyways, She stopped last night on the way back from the bwcp. Not a good noise at all, But even worse is the fact of paying this "workshop" as they call them selves $215 to do this work has pissed me off SOOO bad..

Ahh think of calm blue oceans, Nice calm blue oceans Phil...

So its either the cam barrings or the big end barring by the horred rattling from the top of the engine...

I thank all you guys that did stop for melast night, and krawler, I ran outta credit but the message about the N1's, forged pistons, MMM, done me better than you can think,

Thank you to erin too for getting me the tow truck and andrew in the other "one of many" white 33 for the lift home on that fantastic night..

I hope it all sorts itself out for you Phil. I didn't realise that you paid that person to tell you about the oil! And checking the timing! $215! Far out.

Lets hope someone can work out what's wrong with it or you can get it trailered down to Canberra cheapish.

Ok, Here it is, I took it to Gavin at auto tek, And he was fantastic, very helpfull, straight forward in the diagnosis.

Fu#ked, It needs a rebulid. Big end has gone, Now sounds like the pistons are clipping the head. He offered to rebuild her, but i have to be in canberra this friday to get back to work, SOOO After calling Tnt and many other places with quotes for around $720 to $811.40, i called my friend Parviz from fast and furious imports in Canberra, $425 all the way to his workshop, So i am happy about that but i am going to miss driving her back home... :(

So a rebuild with some goodies is on the books and now my GTR service amnual will get its work out. Should be back on the road in a few weeks...

Amaru, Cheers thanks for your hope. I need it..

Bobjones. I went to a few places here who just threw me on to the next one. If Peninsular is a place that specialise in 4wd's, They were included in the pass on...

Nismogirl.. I cant say it enough to you and krawler, THANKYOU THANKYOU THANKYOU.. :jump: to you both for the hositality and help.. Both you guys and others like jason, Paul and all the SAUQLD have made my holiday one to remember...

Yes, He left my dads house today, On the quiet after getting the result from Gavin... Oh with assistance from my dad to leave..

Just spoke to RACQ as the first mechanic who lokked at it was a approved repairer and will be speaking to their Technical advisor tommorrow morning.. So lets see...

Nismogirl.. I cant say it enough to you and krawler, THANKYOU THANKYOU THANKYOU.. :jump:  to you both for the hositality and help.. Both you guys and others like jason, Paul and all the SAUQLD have made my holiday one to remember...

It's ok matey :) Only too happy to help someone in need. I hope she gets back down to Canberra alright and hope to see her back on her legs and terrorising the Brisbane streets again soon.

Good luck! :)

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

    • Even more fun, leave all the ADAS stuff plugged in, but in different locations, hopefully avoid any codes!   And honestly, all these new cars with their weird electronics. Pull all the electronics out Duncan, and just shove an aftermarket ECU and if needed a trans controller in, along with a PDM. Make it run basic but race car styled!
    • To follow up a question from earlier too since I had the front bar off again (fking!) This is what is between the bumper and the drivers side wheel And this is the navigator side, only one thing but its a biggy! So basically....no putting coolers in the wheel arches without a lot of moving other stuff. Assuming I move to properly race prepping this car I'll take that job on and see how the computers respond to removing a whole bunch of ADAS modules
    • So I prepped the car for another track day on Wednesday (will be interesting to see coolant temps post flushing out and the larger reservoir, with a forecast of 3-14 being 20o cooler than last time I took it out). Couple of things to mention; since I am just driving the car and not taking a support vehicle, I took the rear seats out and just loaded the back up Team Trackday style. Look at all that space! To cover off removing the rear seat....it is weird (note the hybrid is probably different because it wouldn't have folding rear seats) Basically, you remove the lower seat base, very similar to a r series but it is a clip that pulls forward to release the base rather than it being bolted down. Easy Then, you need to remove the side section of the rear seat on each side. There is a 14mm head nut at the bottom of the side piece, the it slides upwards off a hook at the top to release; you also need to unhook the seatbelt from the loop at the top. Then the centre piece is weird. You need to release/fold the seats forward with the tab in the boot on each side From there, there are 2,x12mm headed bolts holding the rear of each seat to the folding bracket, under the trim between the rear seat and the boot (4x christmas tree clips there, they suck). The seat is out but you can see where the bolts attach to the bracket
    • As discussed in the previous post, the bushes in the 110 needed replacing. I took this opportunity to replace the castor bushes, the front lower control arm, lower the car and get the alignment dialled in with new tyres. I took it down to Alignment Motorsports on the GC to get this work done and also get more out of the Shockworks as I felt like I wasn't getting the full use out of them.  To cut a very long story short, it ended up being the case the passenger side castor arm wouldn't accept the brand new bush as the sleeve had worn badly enough to the point you could push the new bush in by hand and completely through. Trying a pair of TRD bushes didn't fix the issue either (I had originally gone with Hardrace bushes). We needed to urgently source another castor arm, and thankfully this was sourced and the guys at the shop worked on my car until 7pm on a Saturday to get everything done. The car rides a lot nicer now with the suspension dialled in properly. Lowered the car a little as well to suit the lower profile front tyres, and just bring the car down generally. Eternally thankful for the guys down at the shop to get the car sorted, we both pulled big favours from our contacts to get it done on the Saturday.  Also plugged in the new Stedi foglights into the S15, and even from a quick test in the garage I'm keen to see how they look out on the road. I had some concerns about the length of the LED body and whether it'd fit in the foglight housing but it's fine.  I've got a small window coming up next month where I'll likely get a little paint work done on the 110 to remove the rear wing, add a boot wing and roof wing, get the side skirt fixed up and colour match the little panel on the tail lights so that I can install some badges that I've kept in storage. I'm also tempted to put in a new pair of headlights on the 110.  Until then, here's some more pictures from Easter this year. 
    • I would put a fuel pressure gauge between the filter and the fuel rail, see if it's maintaining good fuel pressure at idle going up to the point when it stalls. Do you see any strange behavior in commanded fuel leading up to the point when it stalls? You might have to start going through the service manual and doing a long list of sensor tests if it's not the fuel system for whatever reason.
×
×
  • Create New...