smoke problem
smoke problem
So I have a s5 t11 with a fresh rebuild I went to start it up and it smoked like crazy. Well that's normal for a fresh rebuild but it never stops. I Look at the back of the turbo and it shoots oil out the hot side. So then maybe I thought it was the oil seals so I pulled off the manifold and the the runners have no sign of oil. So I put everything back on but I cap of the oil inlet to the turbo and well it still smokes bad.. Any one have any thoughts?
1) don't cap the oil lines to the turbo unless you are running the engine without the turbo on the car or have manually locked the turbine shaft from spinning or it will cook your turbo bearings and seals.
2) how long have you run the engine for?
3) how did you clamp the oil off from the turbo itself?
4) how long did you run the engine after clamping the oil off from the turbo?
even if you clamped the oil from the turbo it will still take upwards of an hour to cook all the oil from the exhaust that has been pumped into it, depending on how bad the leak was. an easier method is to remove the turbo, then the exhaust is removed from the equation and will not be burning the oil inside, this also allows you to see the exhaust ports and any possible oil coming from the engine itself. it's still not advisable to run the turbo on the engine with it locked and no oil flow, it will cook the oil inside the CHRA and possibly damage the bearings still.
2) how long have you run the engine for?
3) how did you clamp the oil off from the turbo itself?
4) how long did you run the engine after clamping the oil off from the turbo?
even if you clamped the oil from the turbo it will still take upwards of an hour to cook all the oil from the exhaust that has been pumped into it, depending on how bad the leak was. an easier method is to remove the turbo, then the exhaust is removed from the equation and will not be burning the oil inside, this also allows you to see the exhaust ports and any possible oil coming from the engine itself. it's still not advisable to run the turbo on the engine with it locked and no oil flow, it will cook the oil inside the CHRA and possibly damage the bearings still.
Last edited by RotaryEvolution; Oct 1, 2012 at 12:58 PM.
1) don't cap the oil lines to the turbo unless you are running the engine without the turbo on the car or have manually locked the turbine shaft from spinning or it will cook your turbo bearings and seals.
2) how long have you run the engine for?
3) how did you clamp the oil off from the turbo itself?
4) how long did you run the engine after clamping the oil off from the turbo?
even if you clamped the oil from the turbo it will still take upwards of an hour to cook all the oil from the exhaust that has been pumped into it, depending on how bad the leak was. an easier method is to remove the turbo, then the exhaust is removed from the equation and will not be burning the oil inside, this also allows you to see the exhaust ports and any possible oil coming from the engine itself. it's still not advisable to run the turbo on the engine with it locked and no oil flow, it will cook the oil inside the CHRA and possibly damage the bearings still.
2) how long have you run the engine for?
3) how did you clamp the oil off from the turbo itself?
4) how long did you run the engine after clamping the oil off from the turbo?
even if you clamped the oil from the turbo it will still take upwards of an hour to cook all the oil from the exhaust that has been pumped into it, depending on how bad the leak was. an easier method is to remove the turbo, then the exhaust is removed from the equation and will not be burning the oil inside, this also allows you to see the exhaust ports and any possible oil coming from the engine itself. it's still not advisable to run the turbo on the engine with it locked and no oil flow, it will cook the oil inside the CHRA and possibly damage the bearings still.
well I ran the turbo for maybe a min the smoke was unbearable..I will pull the turbo off tomorrow and run it like that.. But like I stated in my previous post the exhaust ports had no sign of oil at all nor the spark plugs..
most likely it is your turbo, but it's up to you if you want more definitive results or just send the turbo off for a rebuild.
if it was only run for a minute then there should have been oil present in the exhaust ports, if the engine was run all the way to operating temperature then the exhaust ports will burn off any oil present before it can remain in a liquid state.
if it was only run for a minute then there should have been oil present in the exhaust ports, if the engine was run all the way to operating temperature then the exhaust ports will burn off any oil present before it can remain in a liquid state.
most likely it is your turbo, but it's up to you if you want more definitive results or just send the turbo off for a rebuild.
if it was only run for a minute then there should have been oil present in the exhaust ports, if the engine was run all the way to operating temperature then the exhaust ports will burn off any oil present before it can remain in a liquid state.
if it was only run for a minute then there should have been oil present in the exhaust ports, if the engine was run all the way to operating temperature then the exhaust ports will burn off any oil present before it can remain in a liquid state.
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