Smog Machine
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TECH Resident
Joined: Nov 2001
Posts: 862
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From: Twin Cities
Truck Smokes Turbo Seals? Finally got time to work on the truck tonight with poor results. Basically the truck blows smoke like nothing I've seen. It's not to bad at idle, but a couple of rev's and its smoke city. Had all the neighbors checking me out to make sure I hadn't started the garage on fire. 
I drove the truck back from the shop last Friday, and it smoked like crazy from the start. But I thought I'd go through the system and see what was wrong and found nothing wrong so I tried
1. Installed a breather on the valve cover. Still smoked like a steam engine
2. Removed oil return line from valve cover to ensure it was working properly. It was pumping nicely. No improvement here.
2. Installed a 54 NO2 jet in the supply line. Still sending Smoke Signals. I had to grind a male -4 fitting down to accept the jet. No improvement.
3. Removed the drain line at the bottom of the turbo and put the suction end in a clean bucket under the turbo oil outlet to make sure the turbo oil outlet was free of restrictions. The pump kept up to the flow very nicely but it still smoked like a grass fire. My wife was having fun smoking everyone out of the driveway though...
4. Even with the 54 jet its still got a pretty strong flow coming out of the turbo drain. I'd guess it would take about 10 seconds to fill a pop can.
Not sure what I'm going to do next....
I drove the truck back from the shop last Friday, and it smoked like crazy from the start. But I thought I'd go through the system and see what was wrong and found nothing wrong so I tried
1. Installed a breather on the valve cover. Still smoked like a steam engine
2. Removed oil return line from valve cover to ensure it was working properly. It was pumping nicely. No improvement here.
2. Installed a 54 NO2 jet in the supply line. Still sending Smoke Signals. I had to grind a male -4 fitting down to accept the jet. No improvement.
3. Removed the drain line at the bottom of the turbo and put the suction end in a clean bucket under the turbo oil outlet to make sure the turbo oil outlet was free of restrictions. The pump kept up to the flow very nicely but it still smoked like a grass fire. My wife was having fun smoking everyone out of the driveway though...
4. Even with the 54 jet its still got a pretty strong flow coming out of the turbo drain. I'd guess it would take about 10 seconds to fill a pop can.
Not sure what I'm going to do next....
Last edited by Ripped427; May 7, 2005 at 08:41 AM.
