Jump to content
SAU Community

Recommended Posts

Hi guys

I just put the engine back in my R33 with a T04e (brand new) (bought it off someone who didnt want it anymore but looks like it is probably a cheapy), now i have cranked up the engine, it all runs fine but i give it a few revs (4000rpm) starts blowing smoke while reving and then at idle after that until it settles down again. Im pretty sure my turbo requires a restrictor, now i have left the stock bolt in the block which has a restrictor in it i believe, but i believe i also need one on the turbo side as well? am i correct? now with the line im running at the momment looks like it has a 2mm-2.5mm fitting (turbo side) is this too big? or is my problem not turbo oil related? cheers

Link to comment
https://www.sau.com.au/forums/topic/301545-t04e-oil-restrictor-size/
Share on other sites

the drain isnt kinked or blocked, but once i placed the restrictor in today the smoke has settled heaps, should i take it back out and see if it smokes again? i have read from other forums that i should use a restrictor as the pressure pushes past the seals on a T04e but sounds to me they could be wrong, i did not use silicon on the drain only a gasket. What is everyones suggestions? rip the restrictor back out?

Should never restrict oil to a sleeve bearing T04E turbo. specially if its oil cooled. Without oil pressure and flow the bearings worns out in a lot faster rate. Smoking with no shaft play means the bearing housing is flooded with oil. Find out why it can't drain oil is the key to fix this problem. Unless the CHRA of the turbo is very poorly built.

using the stock drain pipe although the hose is a little monged (not fully kinked), could be flowing alot better, is the stock drain suffient? im guessing it would be the drain, just cant seem to find a good hose that will fit perfectly.

your factory turbo drain?

no good, factory turbo flows less oil - you need a larger line, this will be causing pressure blowing oil past the seals.

My oil drain for my T04E i could easily stick my index finger in down to my first knuckle so it was what... 2.5cm diameter or so?

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

    • Actually, that's not entirely true. It's also the same motor in the 1st gen Nissan Cube but they're rare as hen's teeth.  
    • Yeah it is always worth testing and balancing actuators out of the box, just set the pressure regulator on a compressor very low (eg 5 psi) and increase it slowly to see when they both move.....unfortunately while you may be able to adjust the length of the actuator rod to minimise any difference, the actual pressure they move from is not adjustable so you need a well matched pair. And yes, the VCAM is probably contributing; the earlier in the rev range they come on boost and the slower the revs build (I think your demo was in 5th), the more you notice it.  Driving at WOT through 1st, 2nd, 3rd etc you will probably never hear it as any shuffling starts and is over super quickly
    • oh they were with that motor, you need to remove the engine to change the spark plugs (don't have to, but it does make it easier)
    • I certainly fall into the annoyed camp, but glad to hear that if it's happening at low boost then I'm not likely going to blow a turbo and end up with metal shards in my oil. Just feels like it prevents me from really driving it without hesitation and "peak" performance. Wonder if it's the VCAM, it did an impressive job of shifting the torque curve and faster spool, but maybe now it's "too fast" and there's too much air for how open the throttle is.  Based on some other threads, will also do some reading on synchronizing the actuators. They are the default actuators that come on the Garrett's and I would think they would be set the same coming from the factory, but if the turbos don't actually work exactly the same way at the same time as previously mentioned, it would be worth making sure the actuators are actuating together properly
    • I went down this rabbit hole before, ended up sourcing a motor from the UK (I'm in Japan) which also didn't function correctly. With the original motor, I disassembled it and reassembled it and it works somewhat, sometimes. What I could deduce from all my screwing around is that there is calibration of the gears on the inside of the motor and two ramps on the main gear which activate switches that operate the motor and move the sunroof either to retract into the roof or tilt. Where I got stuck was that, it seemed in my case that one or both of the switches that are activated by the ramp on the gear did not always activate and thus the motor did not move, causing it to sometimes not retract or tilt (apologies, I've forgotten which way it didn't work.).  Of course this part is discontinued at Nissan now, it's the same part in the S15 but no other models. I also contacted the manufacturer of the component for schematics - forgot the name, they're based in Gifu - but they declined to share the information due to being bound by an NDA, sadly. Looking through my pictures now, it seems I last had a crack at this in 2022. See, I so kindly wrote "open" and "close" next to the switches. If you figure it out, please do tell me. Those little switches, with the red buttons may need to be replaced.
×
×
  • Create New...