Datsun Roadster Parts from Rallye Enterprises, Ltd. |
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This plate is worn out on most of the roadsters we see. How to check yours? Take the vacuum advance off of the outside of the distributor. You can then move the bracket where the advance unit was attached to this plate, using your finger. It should move back and forth smoothly, with a small amount of force, and not "click" or feel like it's getting stuck in one spot. The plate is actually two plates with ball bearings between them. Eventually the balls gouge one of the plates. When this plate is worn, the advance setting will jump around instead of moving smoothly as the position of your throttle plate changes as you drive. Not only does this make the engine unable to make throttle transitions smoothly, but your mileage is reduced as the spark advance is almost never where it needs to be for best efficiency. |
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