turbo and intercooler
 

Hi guys,maybe I have a stupid question(for u)but I must ask.I plan to rebuild my ct-26 very soon and with what I must clean intercooler core and pipes because there was an oil leak on turbo.Thanks in advance

kerosene is what you will use.

Couple of things...

First, not sure of your background or equipment, but unless you have some precision, high-end equipment rebuilding a turbo (CT-26 or any other) you're asking for serious trouble. Given the very high RPM's these things spool up to, the rotating assembly has to be balanced EXTREMELY well to avoid damage or destruction to the turbo and potentially the engine as well. I sincerely recommend sending it off to a reputable company to rebuild it for you unless you have the experience and hardware to do it.

For cleaning your intercooler and pipes, you can even use gas so long as you dispose of it safely afterward. Just for the record though, the type of bearings and seals used in the CT-26 will always allow some amount oil to pass through into the intake pipes and eventually accumulate in the intercooler. That's the case even on newly rebuilt units, so don't panic when you see it later down the line. Unless it's really a LOT of oil, it's normal.

I just assumed he was taking the turbo to a dealer.. thats what I would do. or send it into driftmotion.

Driftmotion, seriously. And go ahead and do the 57 trim upgrade while he's at it.

I just get real uneasy when someone says that he's going to rebuild his turbo. Those things spin up too fast for comfort if you're not 100% sure of the balance.

you need a machine to balance them properly I think he was thinking more along the lines of re doing the seals. I think they sell something like that on ebay. I just don't fiddle with it.

I've yet to see a turbo which doesn't use a sacrificial oil seal. They all let some oil through... same for cam seals, oil pump seals and main seals.

Even replacing just the seals is somewhat risky as you still have to dismantle the turbo and then get it back together EXACTLY as it came apart.

i noticed that at the back of the valve covers, there are 2 breathers which lead into the accordian that leads into the turbo. in my sight wouldent that just blow oil into the turbo, isent that a bad thing?

I'll make this short...

NO.

i know there only for emissons but it kinda seems kinda useless but yet again everything that is emmisons is mostly useless for performance

And again.... NO.

Thanks for making this all so very easy.

Here are some commonly deleted items and what benefits they bring to the table... also whether or not they actually impact performance:

EGR: EGR reduces the temperature of the combustion chamber (and thus the engine) by routing a small amount of inert gas back into the incoming air flow. This has NO NEGATIVE EFFECT on performance as the valve in this system closes when at high throttle and at idle. It does help the engine cool though before and after hard acceleration. Through clever manipulation of this system many manufacturers (most notably Honda) are able to significantly increase fuel efficiency on engines which still maintain a high peak power output; EGR gases are used to effectively reduce engine displacement when power needs are low and due to the significant reduction in temps they are also able to lean out the fuel mixture to a level which without the EGR would cause severe engine damage.

PCV: This system provides vacuum to the crankcase removing gases which have seeped past the rings as the engine operates. These gases include water (bad for bearings), excess fuel (bad for oil), exhaust gases (caustic: bad for EVERYTHING)... etc. A healthy PCV system actually HELPS rings seal. The ONLY downside to this system is that over a couple dozen thousand miles some oil may accumulate in the intake and you'll want to clean it out. If it's accumulating more quickly then consider it a free diagnosis of your rings' health... but the problem is not with the PCV system and is readily solved by installing a catch can.

Charcoal EVAP Canister: A simple canister which collects gasoline which would otherwise just evaporate out of your gas tank and actually saves them until they can be slowly trickled back into the engine. You can lose well over a gallon of fuel in a week otherwise... again... NO NEGATIVE EFFECT. Back when gas was under a buck per gallon the whole "but it ain't purdy" argument sounded a lot less stupid, but today.... sorry... they might as well write dumbass across their forehead

Intake Helmholtz Resonator: A VERY simple air reservoir (on 7M-GE and other Toyota engines not on the 7M-GTE though) which serves to reduce turbulence in the intake charge... It does also quiet down the intake sounds but that's only half the reason for it's inclusion; It's been proven that a true Helmholtz resonator can actually restore a significant amount of power that would otherwise be lost due to turbulence in the airway. Helmholtz resonators are not restrictive at all.

Exhaust Helmholtz Resonator (not to be compared or confused with the garbage, baffle based, mini mufflers that are only used for noise reduction purposes): Like their counterpart in a tuned intake these devices quiet an exhaust (and make it sound less farty like a Honduh or 7M-GE with a turbo exhaust) by removing significant amounts of turbulence. This promotes stronger scavenging of cylinders reducing the need for the engine to expend power to push these gases out. Depending on the cam profile this can also be used to create a stronger initial vacuum to help pull in the following intake charge (this continues into the benefits of a properly sized exhaust system and how bigger is NOT better). Again: NO NEGATIVE EFFECT