Quote:
Originally posted by Sabyre
I once had a earlier model Sunbird with flippy lights. More like flippy shields. It had a 2 motor setup. The gearing (dried up) and when you turned the headlights on or off they would produce a screeching sound that is comparable to a shreiking banshee conjured up in your worst of nightmares.
Applaude what Porsche has givin' you.
It can always be worse!
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The gearing on Porsche's setup can dry up too. There's nothing magical to keep it from drying out.
My old Accord had a two motor setup for its retracting headlights and it worked flawlessly for 217,000 miles (I can't say for sure after that since I sold the car at 217,000 miles).
I really don't think that either system is better than the other, the 914, it must be remembered, is a very old car and given the 914's fairly notorious electrical system it's not surprising that it had problems with the headlights (mine hasn't, so far). Sure a one-motor system has the weight of the linkage, but it also lacks the weight of a second motor. The only drawback I see in the one motor system is a lack of redundancy. If one motor fails, then you have no headlights. In a two motor system, if one motor fails at least you still have one headlight. But the chances of a motor failure are so small that it really doesn't matter in practical application. Usually the failure is in a relay or the wiring which would disable a two-motor system as well as a one-motor system.
Aaron