Hi all. I'm new here, so hello to everyone.
My car is an Alfa 147. It has 1.9 JTD 16v 140hp engine. I bought the car with a faulty turbo, which was freshly fitted. the turbine shaft was seized and broken, found nut from previous turbo in the intake, which damaged the compressor wheel and the oil feed pipe was kinked. I replaced the turbocharger for an identical factory VGT from Garrett, also cleaned the air intake and intercooler piping and replaced feed line,and changed engine oil for 15w40 cheap oil(i was going to put proper semi synth oil into it next day). After driving about 50 miles took the car to the motorway, I tried turning on the cruise control, which didn't work, instead after short time I felt the engine losing power, after few secs it picked up again, I also geard whining noise. I stopped, revved the engine and there was a bad whining noise from the turbo. Removed the turbo next day and took it to the shop, where it was bought. It was disassembled and inspected, then they told me that it seized from oil starvation or possibly contamination, and that it can be rebuilt, so I went for that option. OK, so now I have a turbo, but I'm afraid to put it on and drive the car. I checked the oil pressure at the oil feed without the turbo:
5.5bar @ cold idle,
3bar warm @ idle,
5-6bar @ fast idle, so it seems perfect. I also flushed the engine and changed oil and filter.
I browsed car forums for ages but didn't find any clues
My question is: Can a variable vane turbo be destroyed by improperly connected or malfuntioning variable vane control solenoid?, causing it to overheat?
I tried to describe the whole story, so that you could get the picture. Let me know what you think?
My car is an Alfa 147. It has 1.9 JTD 16v 140hp engine. I bought the car with a faulty turbo, which was freshly fitted. the turbine shaft was seized and broken, found nut from previous turbo in the intake, which damaged the compressor wheel and the oil feed pipe was kinked. I replaced the turbocharger for an identical factory VGT from Garrett, also cleaned the air intake and intercooler piping and replaced feed line,and changed engine oil for 15w40 cheap oil(i was going to put proper semi synth oil into it next day). After driving about 50 miles took the car to the motorway, I tried turning on the cruise control, which didn't work, instead after short time I felt the engine losing power, after few secs it picked up again, I also geard whining noise. I stopped, revved the engine and there was a bad whining noise from the turbo. Removed the turbo next day and took it to the shop, where it was bought. It was disassembled and inspected, then they told me that it seized from oil starvation or possibly contamination, and that it can be rebuilt, so I went for that option. OK, so now I have a turbo, but I'm afraid to put it on and drive the car. I checked the oil pressure at the oil feed without the turbo:
5.5bar @ cold idle,
3bar warm @ idle,
5-6bar @ fast idle, so it seems perfect. I also flushed the engine and changed oil and filter.
I browsed car forums for ages but didn't find any clues
My question is: Can a variable vane turbo be destroyed by improperly connected or malfuntioning variable vane control solenoid?, causing it to overheat?
I tried to describe the whole story, so that you could get the picture. Let me know what you think?
