Discussion
I have just changed my plug leads after 38,500 miles and what a difference, smoother, more responsive and feels like more power and torque too. Job was easy to do and cheap, £53. I would say to anyone with a speed six, do not leave it until that mileage before you change your leads, i would say 20 to 25k and no more.
The hardest bit was re-sealing the spark plug cover back neatly.
The hardest bit was re-sealing the spark plug cover back neatly.
First off, it has taken me 5 years 3 months to get to 38,000 mls.
I also argee with the heat issue on the leads, and now having seen the route they take there could be an issue with rubbing, which could cause the insulation properties to brake down too.
I had heard that Speed sixes should have there leads changed at the 18k mark, but as it seemed to run ok so they got left, but as they brake down gradually you will not realise how bad they are untill you change them or go on a rolling road.
For the little cost and ease of changing them it is worth while and they could pay for themselves due to loss of efficiency.
I also argee with the heat issue on the leads, and now having seen the route they take there could be an issue with rubbing, which could cause the insulation properties to brake down too.
I had heard that Speed sixes should have there leads changed at the 18k mark, but as it seemed to run ok so they got left, but as they brake down gradually you will not realise how bad they are untill you change them or go on a rolling road.
For the little cost and ease of changing them it is worth while and they could pay for themselves due to loss of efficiency.
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