I just put an adjustable wastegate on my 84 b/c the boost was in the 18-20 range, and I lengthened the rod about 1/2 inch. I took the car out, and I barely had knock...boost was in the 15-17 range...on the way back ( I only went about 2 miles up the road) I hear a pinging type sound...like metal rattling. no rattle under boost, but at idle, it was noticeable...not loud. Pop the hood and I'm sorry to say, that it sounds like it's coming from the turbo...if I raise the idle, no noise...just at idle.
I'm no expert, but it's probably the impellers, right?...please say no, but I think I'm right What, if it is this, could have caused this?!?
No problem with power, and no smoke, and the sad thing is that the turbo is AGAIN about 300 miles old...this is the second one in 2 months!!! I am startin to think bad things about my GN
John
I'm no expert, but it's probably the impellers, right?...please say no, but I think I'm right What, if it is this, could have caused this?!?
No problem with power, and no smoke, and the sad thing is that the turbo is AGAIN about 300 miles old...this is the second one in 2 months!!! I am startin to think bad things about my GN
John