1G Yup. This is a long one...

[96talonchick]

Alright. DSM issues is becoming all to common for me, which sucks.

Here's the history on my DSM.

It's a 6 bolt swap into a 2g. Forged pistons/rods, block has been completely redone as well as being bored over .020. my head was sent to the shop as well to be looked at, disassembled and then reassembled with the same parts. (It had zero tun time on a rebuild).

I have no way to tune it yet. We just installed (Sunday)a walbro 255 pump and evo 560 injectors, which didn't work. So we put the 450 stock injectors back in today (Monday). My turbo is a used stock 14b (not eBay). I do have an aftermarket afpr, wideband.

We just replaced the timing belt and tensioner because the tensioner was failing and stretched the belt. (Done 2 days ago, Saturday)

So now here's the new issue. A friend of mine mentioned 2 weeks ago that we were smoking out of the tail pipe. We my husband just took it for a test drive after installing the 450 injectors again and low and behold, smoking like a pig.

I have no oil hitting the ground and nothing is looking freshly wet. So now our assumption is it's the turbo or possibly valve guides. What do you all think?

 

[pauleyman]

What kind of smoke and under what conditions?

 

[lasershark]

Depends on the color of the smoke, does it do it on start up only, consistantly, under load ect...

 

[96talonchick]

I cannot fully answer that because what smoke my friend claimed he saw, we in the car did not see. However, this test run was OK until my husband hit boost. Then it produced smoke. My husband and I cannot settle on a color to call it but it's got the stench of burnt oil to it.

When he wasn't in boost he was unable to see smoke but when he pulled into the driveway I was able to see it puffing out.

 

[dustyboner]

pull off the o2 housing and see if it has oil in it.

 

[mitsuGstx]

I just went through this in the past week. If its white smoke post boost but not at idle/vacuum load pull the intake and check the turbo for any in or out shaft play. How old is the turbo?

 

[PlanZero]

Are you sure it's not fuel? Does it burn your nose? In conjunction with your other thread, something as stupid as a boost leak will not only give you misfire symptoms, inability to boost above low psi, and make you run rich and blow blackish smoke.
You need to thouroughly check, using an air compressor, soapy water, test from turbo as well as TB. One time I had a loose hose clamp (right after my engine swap) on my lower intercooler pipe and had all the above symptoms.

 

[BoostzillaTSX]

Does the turbo have any shaft play?

 

[96talonchick]

I just went through this in the past week. If its white smoke post boost but not at idle/vacuum load pull the intake and check the turbo for any in or out shaft play. How old is the turbo?

It's mostly an ages turbo. When I got it there was no shaft play.

But I am now leaning towards a bad turbo for my issues. When I bought the 14b I had posted asking if the cracked waste gate was usable. (The crack doesn't go all the way through, but it's there)

 

[96talonchick]

Are you sure it's not fuel? Does it burn your nose? In conjunction with your other thread, something as stupid as a boost leak will not only give you misfire symptoms, inability to boost above low psi, and make you run rich and blow blackish smoke.
You need to thouroughly check, using an air compressor, soapy water, test from turbo as well as TB. One time I had a loose hose clamp (right after my engine swap) on my lower intercooler pipe and had all the above symptoms.

It makes me wrinkle my noise, but doesn't burn. We have done a blt and it holds pressure. The only questionable issue with it is that my valve cover is also getting air into it. Which it has done since day 1 of being built.

 

[PlanZero]

Just to clarify, you won't necessarily loose pressure doing a BLT. I hope that just because it held pressure you didn't assume it was good.
And how exactly is your vc getting air into it? Do you mean during a BLT? Block off your pcv when testing.
You seem to have a plethora of problems that keep compounding themselves, when I suspect your answers are much simpler than you realize

 

[Dsmkauai]

Cracks in the turbine housing are very normal and would not make the turbo smoke. Just because the turbo had no shaft play when you got it doesn't mean it doesn't now. You need to check it again. And also do a blt to 15-20psi and see how it holds. And then figure out the color of smoke and go from there.

 

[96talonchick]

Blt has been done with a range of psi, 10-26 because of the range we want. It holds pressure and we spray soap water every test. No bubbles and no leaking air.

Guess I'm not sure how one would know if the blt failed other than air/bubbles.

 

[pauleyman]

Are you testing all the way to turbo inlet?

 

[PlanZero]

Adding to what the flyin Hawaiian just stated, you have an old 14b (I assume it wasn't rebuilt?) that is on a limited lifespan. I check my old s16g every week for play, as I have no idea how many miles are on it.
I also do BLTs on my 96 every few weeks since it's modded
I like to crank up the psi to about 30-40 (briefly) to see where potential leaks could spring from, such as old t fittings, check valves, etc.

Talon chick, could you do us a favor and be a little more descriptive with your thread titles from now on? I'm getting confused with the two threads you have going right now, as I'm responding to both. Also helps for future searches. Thanks!