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I have recently bought a 1977 Daimler Sovereign 4.2 coupe. It's not perfect but a nice car. The auto box (type 12 Borg Warner?), seems quite jerky and "hunts", on changes as i accelerate normally to say 30 - 40 mph. I have checked the fluid level using the gearbox dip-stick and it appears that it has been literally filled up! The questions are 1. How smooth should the change be? 2. Would excess gearbox fluid cause jerky changes?
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Hi Philip,
As ever, I would advise checking the basics first;
1) Fluid level and condition - make sure you check the fluid using the recommended method for your car (usually warmed up, engine running at tickover, in drive!!! be very careful - I usually ask an assistant to be in the car, with his foot on the brake). The fluid should not be dark brown / black or smelly.
2) Kickdown cable condition and adjustment - make sure it runs freely before trying to adjust it.
3) Selector lever mechanism, condition and adjustment
4) Brake band adjustment - usually, slacken locknut, tighten inner bolt to a specified torque, then back off a given angle, and tighten locknut - check the manual for the detail.
I hope this helps,
number_cruncher
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