Jump to content
SAU Community

Recommended Posts

Hey hows it going, ive got a problem with my R33, recently ive experienced a problem i went last week to power cruise and while dropping the clutch and sitting on the limiter for about 5 seconds and letting off ive developed this screach from the turbo, its a high pitched screach not the nice type of one, it happens only when boost comes on after 3.5k, i orginally thought it was the diff or gearbox but you can easily drive the car light footedly to the limiter without the noise.

I did remove my piping yesterday and havent noticed any shaft play on the turbo however i did notice oil in the intake piping towards the plenum and the intake pipe to the pod filter, i did however check the manifold and dump were secure to the turbo and they were and i couldnt see any signs of leaks.

I am not sure if the presence of oil could mean a bearing is blown or something, though i am guessing the sound is from the turbo as when i rev the engine i can hear it coming from the turbo.

So could you give me a few tips what could be the issue, because im guessing its the turbo and it needs a rebuild if not, could you tell me what possibly could cause that sound.

The car is tuned btw and its been running on 12psi, however when i turned the boost to about 6 psi it still made the screaching sound but not as loud.

Please give me some advice guys

NickPerth

Link to comment
https://www.sau.com.au/forums/topic/379443-r33-turbo-screach-while-on-boost/
Share on other sites

Hey mate, ive had a similar problem, dont worry about the oil in the intake pipe, thats normal, its from the rocker cover breather, thats why people get catch cans, anyhow, a few months back i heard a slight squeek from my turbo when on boost, as the months went past it got worse and worse untill one day coming from work i floored it and the squeek got significantly louder and the car seemed to loose alot of power.

i thought it was shaft play, so i bought another turbo, took my one off and the propelers seemed fine on both ends, anyhow, i put the new turbo on and there was a significant differance in the sound and power of the car, it was like driving a totally new car, im still not too sure what was wrong with the old one might have been the internals of the turbo that were f**k*d.

hope that helps, good luck

yeah id say this sounds like turbo bearings going.

mine di it as was the case with miga24. Pretty common on stock rb turbos, especially when u start winding the boost up.

However how it occurs can vary but often it ends up taking out the rear turbine wheel when the bearings get so shit the rear turbine wheel falls apart from the instability/touching the housing.

look at getting a new turbo soon. There is the outside chance you can lunch a motor when the turbo does end up failing totally...

never heard of a warped manifold before on an RB...

are you sure this wasnt a mis-diagnosis due to the mechanic seeing the broken manifold studs n an exhaust leak n so thought that the manifold had warped when really it just needed a new exhaust manifold gasket n set of head studs?

yeah its pretty common, the way it is designed, the length of it causes it to warp..this is why others use split manifolds..

i think its ok while bolted down but once you snap a stud or 2 it then has room to move and warp.depend how hard you treat it and how early you are realized they snapped.

i was told when mine were replaced he used stronger studs than stock so they wont snap.. i havent really put them to the test though :D

f*k..

im doing the exhaust manifold job next weekend. (first n last studs are snapped off) I havent got an exhaust leak or anything so praying its just 18yr old studs calling time as opposed to a warp.

son of rajab please, have mercy on my wicked soul and forgive the manifold its sins!!!!

Alright thanks guys, well i am going to go and take the turbo off and manifold and check all the gaskets tomorrow and see what i come and get back with, also if its the bearings on the turbo would you recommend me getting a turbo rebuild kit from like eBay since Ive seen them for about $50 or so. Only reason i am saying this is, cause i want to get a high mount setup at the end of the year or early next year but i don't have the cash right now and i want to use something in-term for now just to hold off for another 3 months, before i upgrade.

good lcuk..

n from what i can gather- faaark no to the rebuild kit. Turbo's also need to be spun up and balanced. N im guessing you arent going to be able to do that to it...?

U can often pick up second hand R33 turbos for 150-250 these days. That'l see you through to the end of the year id say...

Hey hows it going, i took my turbo off yesterday and i chucked everything over it and it was all fine and then i preceded to take off my manifold and i noticed i 3 snapped turbo manifold studs, would you think that broken manifold turbo studs could be the problem, as i thinking of getting some new studs and repairing them and then going to put it back together and see if its fixed the solution.

iv never heard one but based n your symptoms and that you have 3 snapped studs (i take it 2 are on one header pipe?- so essentially no studs left holing that pipe on?) id say thats highly likely...

Im putting mine in this weekend to have the manifold studs n gasket re-done. Ill let you konw how it goes n if the guy is decent, and what the price ends up being...

so yeah. had my exhaust manifold stud n gasket done.

There was actually 5 snapped studs in total that had to be drilled out but the guy managed it no worries and the manifold was within tolerances for straightness so it was able to go back on with the fresh studs n gasket.

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

    • Thanks for all the replies fellas. Gonna finish putting it back together and see how it handles the set up. If it starts pinging it’ll be parked.
    • Well, I can recommend the partial AV system translation CD I ordered from Car Audio Workshop in NZ. Whilst it didn't address the date issue, it has conveniently translated on-screen menu items into English, and now allows the GPS-received time to be offset in hours rather than minutes, so I can display Eastern Australian time accurately ( and bump it by another hour when daylight savings starts ).
    • Yuh, if it's 45°C outside, my car is driving in it.
    • I'd be curious to hear more. Otherwise, have you driven a modern x-trail? I wonder how it compares. Here in Australia they are/were popular for rentals and fleet vehicles. I have been in some and my impression was they are bad. But, this may have been very different in the 2000s at a good trim level. Twenty years is plenty of time to make the model worse. I do very much agree with the 2 silver cars in the garage approach. But, not driving because it's too hot would not leave a lot of time in the year for many Australians. I don't think you need to worry too much unless the car has actual issues with overheating. 
    • Back again. I returned to Japan in Jul/Aug to spend time with the car on my birthday and remind myself what all the sacrifice and compromise is for. It happened to line up with the monthly morning meet in Okutama, which I have been wanting to go to for a long time. It's a unique event at a unique spot with really rare, interesting, and quirky cars. It's where all the oldheads and OGs gather. The nighttime scene at DKF certainly has its place and should be experienced if you're into cars, but there's too much bad attention and negativity around it now. IMO the better time is Sunday morning at DKF or Okutama; it's more chill and relaxed. I'm glad I was finally able to go, but not sure it's worth the drive from all the way from Nagoya immediately the day before, unless I was already staying in Tokyo for the days right before the meet, because you have to wake up quite early to make it in time. Funnily enough though I didn't drive the car all that much this trip because it was just too damn hot. While there were zero issues and running temps were nominal and the A/C was strong, RBs already run crazy hot as it is. Sure, it took it all like a champ but something about driving these cars in the ridiculous heat/humidity bothers me and makes me feel like I'm asking too much of it. I'm just me being weird and treating the car like a living thing with feelings; I'm mechanically sympathetic to a fault. Instead I was mainly driving something else around - a KX4(silver) 2001 X-Trail GT, that I acquired in May. There's a few different flavors to choose from with Xs, but visually it's the Nissan version of the Honda CR-V. Mechanically it's a whole different story as this, being the top-trim GT, has an SR20VET mated to a four-speed auto and full-time AWD! It was a very affordable buy in exceptional condition inside and out, with very low mileage...only 48k kms. Most likely it was owned by an older person who kept it garaged and well-maintained, so I'm really happy with how it all worked out. It literally needs zero attention at the moment, albeit except for some minor visual touch-ups. I wanted something quirky, interesting, and practical and for sure it handily delivers on all three of those aspects. I was immediately able to utilize the cargo and passenger capacity to its full extent. It's a lot of fun to drive and is quite punchy through 1st and 2nd. It's very unassuming -in the twisty bits it's a lot more composed than one would think at a glance- and it'll be even better once I get better tires on it(yes, it's an SUV but still a little boat-y for my liking). So...now I have two golden-era Nissans in silver. One sports car and one that does everything else; the perfect two-car solution I think👍 The rest of the trip...I was able to turn my stressed brain off and enjoy it, although I didn't quite get to do as much as I thought. I did some interesting things, met some interesting people, and happened into some interesting situations however, that's all for another post though only if people really want to know. Project-wise, I went back to Mine's again to discuss more plans and am hoping to wrap that up real soon; keep watching this space if that interests you. Additionally, while working in the tormenting sweatbox that is the warehouse, I was able to organize most of the myriad of parts that my friend is storing for me along with the cars, and the 34 has a nice little spot carved out for it: And since it can get so stupid hot in there, that made it all the more easy -after I was standing there looking at the car and said 'f**k it'- to finally remove all the damn gauges that have mostly been an eyesore all this time. Huzzah. The heat basically makes the adhesive backing on the gauge mounts more pliable to work with, so it was far less stressful getting this done. I didn't fully clean it up or chase the wiring though; that will happen once I have the car in closer possession. Another major reason to remove all that stuff is to give people less reasons to get in my car and steal s**t while it's being exported/imported when/if the time comes, which leads us to my next point... ...and that is even though it's time in Japan is technically almost up since it's a November car and the X would be coming in March, I'm still not entirely sure where my life and career is headed; I don't really know what the future looks like and where I'm going to end up. I feel there's a great deal of uncertainty with me and as a result of that, it feels like I'm at a crossroads moreso now than any point in my life thus far and there are some choices I need to make. Yes, I've had some years to consider things and prepare myself, however too much has happened in that time to maintain confidence and everything feels so up in the air; tenuous one might say. Simply put, there's just too much nonsense going on right now from multiple vectors. Admittedly, I'm struggling to stay in the game and keep my eyes on the prize. So much so in fact, that very recently I came the closest I ever have before to calling it quits outright; selling everything and moving on and not looking back. The astute among you will pick up on key subtext within this paragraph. In the meantime I've still managed to slowly acquire some final bits for the car, but it feels nice knowing there's not much left to get and I'm almost across that finish line; I have almost everything I'll ever want for my interpretation and expression on what it is I think an R34 should be. 'til later.
×
×
  • Create New...