Smoking exhaust!

HancoB · Post by **HancoB** » Tue Apr 22, 2008 9:28 am

Well I did my exhaust a week ago and since then my car started smoking on idle. It never used to do that.

Now some people told me its the PVC valve, and said I should clean it, abd so I did but it kept on smoking. Then I was told to remove the breather pipes and see whats happening and still it smoked. I even bought a breather filter and put that on so that no oil is breathed back into the turbo, but still it smokes.

Now the guys who have been there and done that...tell me what is the cure for this bad habit????

Sokar · Post by **Sokar** » Tue Apr 22, 2008 9:51 am

Can I give my input or are you and Mario gonna argue with me?

HancoB · Post by **HancoB** » Tue Apr 22, 2008 9:56 am

Just dont say my turbo is shot coz then I will.

I was told a week ago when the car was in for the clutch that the turbo is still fine!

But give your input!

Sokar · Post by **Sokar** » Tue Apr 22, 2008 10:12 am

I wouldnt say the turbo is shot, but chances are it needs a new seal kit, specifically the rear oil seal on the turbine side.

It normally happens to guys that get a bigger exhaust, it happened to me and a few other guys I know of, some are lucky and it doesnt happen.

The turbo shaft spins quite fast

and the seal wears a groove in the shaft, not enough to make it leak because the seals springyness keeps it in the groove. Now with the bigger exhaust the wheel and shaft ride "further back" down the turbo as the back pressure isnt pushing it forward as much as it used to so the seal pops in and out the groove as you accell and decell (boost, off boost).

Its normal and a seal kit usually fixes it, in bad cases its a new shaft, also it shouldnt smoke alot. mine wasnt bad so I just lived with it.

veecee · Post by **veecee** » Tue Apr 22, 2008 10:31 am

lol...

its because your exhaust is too small, its causing too much back pressure on the exhaust blade of the turbo, thus causing minute shaft vibrations which tend to slightly damage the bearing, and then the seal overheats and becomes slightly brittle - which causes oil to leak down his exhaust, and thus it smokes on idle!!!

HancoB · Post by **HancoB** » Tue Apr 22, 2008 11:49 am

Ok cost??? How much to repair?

Sokar · Post by **Sokar** » Tue Apr 22, 2008 12:22 pm

Cost? Well a garrett seal kit is between 400 and 600, then you need someone to take it out and someone to install the seals.

turbophonic · Post by **turbophonic** » Tue Apr 22, 2008 12:29 pm

Sokar wrote:Cost? Well a garrett seal kit is between 400 and 600, then you need someone to take it out and someone to install the seals.

ya...+-R500 is cost of seal/repair kit

may sound silly,but why not try the repair yourself???there is a step by step guid on turbo rebuild in SnS issue 47
and a good few on the web

Sokar · Post by **Sokar** » Tue Apr 22, 2008 1:11 pm

turbophonic wrote:
Sokar wrote:Cost? Well a garrett seal kit is between 400 and 600, then you need someone to take it out and someone to install the seals.
ya...+-R500 is cost of seal/repair kit

may sound silly,but why not try the repair yourself???there is a step by step guid on turbo rebuild in SnS issue 47
and a good few on the web

Yeah, if you arent changing wheels etc that effect balancing then you should be able to do it yourself.

HancoB · Post by **HancoB** » Tue Apr 22, 2008 1:49 pm

Ok all good now where can I get a kit like that?

Sokar · Post by **Sokar** » Tue Apr 22, 2008 2:33 pm

Turbo Exchange. http://www.turboexchange.co.za I see they have a branch in CPT.

widowmaker · Post by **widowmaker** » Tue Apr 22, 2008 2:40 pm

is it like a little smoke

or a lotta smoke?

turbophonic · Post by **turbophonic** » Tue Apr 22, 2008 2:41 pm

Sokar wrote:Turbo Exchange. http://www.turboexchange.co.za I see they have a branch in CPT.

ask to speak to Brendt...he is the most helpfull....

HancoB · Post by **HancoB** » Tue Apr 22, 2008 3:40 pm

Its a little, and when you rape the car its a lot! but then becomes little again...

Riekert · Post by **Riekert** » Tue Apr 22, 2008 4:41 pm

HancoB wrote:Its a little, and when you rape the car its a lot! but then becomes little again...

why on earth would you rape your car????? dude!!