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« on: July 21 2018, 09:43:10 AM »
Hi everyone,
Just discovered this site yesterday. Some great info here. I am new to the Turbo world and just bought a 1987 GN last week. I am having a couple of issues one of them being when I reach speeds of 100kmh (60mph) I get a bad vibration in the steering wheel and front end seems to be shaking. If I push it past 120kmh (70mph) it gets better and seems to almost disappear but is still somewhat there. If I go below 80kmh all is good.
I don't believe the rotors are warped because when I apply the brakes its very smooth with no vibration plus that would only show up when braking
The car had a safety inspection before I bought it last week and it passed which means they supposedly checked the front end. I took it into a different garage to have it looked at. They examined front end and couldn't find anything wrong. They suggested the wheels needed balancing. Seemed reasonable so I had them do it but problem is still there. They then suggested that I replace the two front tires as possibly one of them had a flat spot or other issue. I replaced both front tires and still same problem. So $500 later I am no further ahead
I am taking it to a different shop next week that specializes in both classic cars and high end cars and hoping they can help. Can you think of what might be causing this ? I was thinking maybe a damaged rim (there is nothing visibly wrong) but if that was the case wouldn't that show up when balancing ?