Having gone to Classic Le Mans in 2012 and then the 24 hour race in 2013, I was keen to head back to CLM this year with the Cobra.
Since the car went back to the factory to have the suspension set up, I covered a further 1000 miles or so and I still wasn't happy with the handling and more specifically the steering. The steering is very heavy and the wheel doesn't return to centre after cornering which is quite concerning.
There are a number of other little jobs that need finishing off before heading down to France, so I took the car to my local garage, SH Autos in Bromsgrove and let Adrian, the owner of the business, take a look as he had previously helped out when I was having build issues.
After a few days in the workshop, the fault, or rather the series of faults, have been identified. Firstly, the pinion gear on the rack hasn't been made particularly well and it is quite notchy. We took the rack over to Kiley Clinton who confirmed this but they did say it shouldn't affect the steering as much as it does.
The next thing that was identified as a weakness was the UJ's in the two part linkage between the column and the rack. These were adjusted and lubricated but will probably be replaced with a better quality replacement.
With the rack back in and the car up on ramps it was clear that at every revolution of the steering wheel the rack showed huge resistance. Further investigation pointed to the centre bearing that support the connecting linkage. With this loosened off the rack would operate freely. The dilemma this presented that the linkage and centre bush needs to be tight but this stops the steering operating correctly. Further investigation revealed what we assume to be the route cause of the problem however.
The steering column is a modified Vauxhall Vectra column. Where the spindle comes out of the column it isn't running true and this causes the resistance through the centre bearing.
Just spoke to Andy and he is sending a new column out overnight so hopefully this will rectify the problem.
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