T04e Oil Restrictor Size?

[RicsR33]

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

[lachlanw]

i was under the belief standard bb needs a restrictor but for a bush bearing one you ripped it out . i would check your turbo drain before i go fiddling with all that

[R31Nismoid]

^ Yep.

The T04e will be bush, it certainly does not need a restrictor. Does it even have water connected?

I never ran one with my old shitter t04e of years ago haha, so glad i got rid of that.

[hypergear]

The greater oil flow the better for those.

Check to make sure your oil drain is not kinked or blocked, And check the drain flange in case you sealed it with silicon.

[RicsR33]

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?

[RicsR33]

Oil only turbo no water lines mate.

[hypergear]

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.

[JonnoHR31]

what size drain (smallest point) are you using?

[RicsR33]

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.

[R31Nismoid]

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?