Hello all, back many months ago i posted(my initial posts actually) that i had started a turbo build on a 86 325e.
Well after many months of hell, the car is running, and strong for the most part, however i need some help from those who have done this sort of thing.
I was having blow by issues with the crankcase pressurizing. The breather line that goes bwtn the valve cover and the throttle body kept coming off, so i plugged the TB bosse and installed a catch can that would safely vent the crankcase to the atmosphere, without theoretically causing any vaccum leaks.
Well with the hoses clamped on tight and set up so the V/C vents through the catch can and out, i have stupid amounts of smoke existing the exhaust, to the point where i couldnt see cars behind me.....ok so what do i do?
I went to a gas station, pulled the clamp off the hose going to the valve cover and took the breater hose off, essentially creating a huge vaccum leak and allowing the crank case to vent to atmoshere while under boost.
Well i did this and it runs great, pulls stronger than with the car running through the catch can....this makes no sense to me.
As well, when the car came back to me originally a few days ago, i saw that breather line had slipped off the valve cover, telling me that the crankcase was still pressurizing under boost. I slid the line back on, played with the AFM adjustment and cold start injector and all was good.
Now my concern is this. Tomorrow morning when my buddy goes to start the car in the morning, breather line off, im *assuming* the car is gonna idle poorly and initally run like shit, but it will not smoke. The alternative to hook the line up and and create smoke screens all day.....
I dont know what to do.... if anyone knows what could be the potential problem, pls post up and help a fellow euro tuner.