Rx7 fc turbo smoking
 

I have a mazda rx7 1988 convertible six port turbo whit around 5 k mile on an engine rebuild but since day one the car smoke i remove the turbo is the ome one but hybrid the front is to4 i bought the engine disassembled whit the turbo and everything. I bought everything of inside the engine side seal, corner seal, spring and bearing new oem except the hard oil seal that use the same but the mechanic said the are whit in specs and the apex seal and who are super seal. I finish the car in 2011 and barely used. The car start fine hot and cold i am running full premix 1.0oz per gal idemitsu. The not use barely any oil on the crank i put 5 qtr and int oil change i take out 5qt. I think the problem is the turbo oil seal is bad. I take the turbo out maybe 2 years ago and change bearing and seals and put a oil restrictor of 0.10 but the problem continues but now i wantto fix it. https://youtu.be/NQ3MTxAwjj0 here is a video of the car

if your not losing oil, then your turbo isn't burning oil

I'd say cut back on the premix, 1oz per gallon is a little on the rich side

are you POSITIVE that your not losing oil? the video you posted seems a little heavy for premix smoke.

color is hard to tell also on the video, but are you losing coolant?

No i don't losing coolant either the smoke is blue and always smoke at idle also but very little, and when i take out the spark plug the don't look whit fresh oil i think they show the normal carbon build-up

The other day i was fixin the turbo downpipe gasket and i see excessive carbon build up i think i don't loss hard any oil because the oil restrictions in the turbo and because i don't use the car a lot either.

You should inspect the turbine for play (in/out and up/down), and exhaust wheel for any oil coating. But if its a blown oil seal it usually smokes at idle and clears up as you rev. Im new to Rotary's so it may just be a rich premix.

Is there oil in the compressor housing or exhaust housing after sitting? You can run the car with the turbo removed. Cap the oil feed, return and the coolant lines. You will see right away if its smoking like in the video. Sounds like you may be running too much premix as well. We've ran 1:100 for years with no issues....for example 60 liters will get 6 ounces.

I am running 100:1 but 60 liters will get like 20 oz not 6 https://cimg4.ibsrv.net/gimg/www.rx7...81b8318d1c.png

I think the turbo hast normarl shaft play i put new bearing and seal the las time i take out but I think the proble is in the cartridge tha is out of spec