Smoke from exhaust
#1
Smoke from exhaust
My car was leaking oil, and I realized that it was leaking from the turbo return line. I purchased the McMaster Carr replacement recommended by the board here. My friend who helped me install it said even though it was a little long, and didn't go constantly down, it would be fine.
I drove home and it seemed okay. Last night, I swapped the stock cat with a test pipe As I drove my car to school today, I noticed that it would smoke when I put any load on the turbo.
It seems after searching the forums, it's because the return line might be pooling. Does that sound right? This GReddy kit is starting to annoy me. Grrrr
I drove home and it seemed okay. Last night, I swapped the stock cat with a test pipe As I drove my car to school today, I noticed that it would smoke when I put any load on the turbo.
It seems after searching the forums, it's because the return line might be pooling. Does that sound right? This GReddy kit is starting to annoy me. Grrrr
#4
Boost Czar
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,501
Total Cats: 4,079
ding ding ding!
Has it always been routed this way? What you are doing is pressurizing the crankcase, which is forcing air into the return line. This pushes the oil back into the turbo where is blows past the seals into your exhaust.
Here's your solution:
1/8" NPT tap
1/8" to 3/8" slip on fitting
total cost = $5
Has it always been routed this way? What you are doing is pressurizing the crankcase, which is forcing air into the return line. This pushes the oil back into the turbo where is blows past the seals into your exhaust.
Here's your solution:
1/8" NPT tap
1/8" to 3/8" slip on fitting
total cost = $5
#7
Boost Czar
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,501
Total Cats: 4,079
for ***** and giggles try at least removing it form where it's at now and plug the hole in the intake path. With the line to the crankcase open to the air, see if there is a difference.
If routing the drain line around the engine bay with about 5 feet of hose make sure there are no flat spots. I suspect bad drainage and crankcase pressurization are your culprits.
If routing the drain line around the engine bay with about 5 feet of hose make sure there are no flat spots. I suspect bad drainage and crankcase pressurization are your culprits.
#9
actually i was catless and didn't see smoke for a while. I put the cat for testing. Anyways, I did 2 things:
1) Put the line before the turbo just like the picture
2) cut the return like about 8" and routed it for better return.
Took the car on a test drive and it seems good. We'll know tomorrow I guess, when I drive to school (20mi)
1) Put the line before the turbo just like the picture
2) cut the return like about 8" and routed it for better return.
Took the car on a test drive and it seems good. We'll know tomorrow I guess, when I drive to school (20mi)
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