What pulled my Thunderbird's teeth? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 3 (permalink) Old 09-24-06, 08:39 PM Thread Starter
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What pulled my Thunderbird's teeth?

A new steel timing set(chain and sprockets) was installed about 25,000 miles ago on my 86 Thunderbird 3.8. The engine was babied ever since, but still the cam gear was found to have broken teeth, although the chain looked ok as did the crank gear. The gear and chain did not appeared to suffer from lack of oil. I am not sure who manufactured the parts and would like to hear some ideas as to what caused this to occur.

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post #2 of 3 (permalink) Old 09-25-06, 03:53 PM
wasnt me
 
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Re: What pulled my Thunderbird's teeth?

if there isnt a lot of wear on the teeth or chain i would have to say quality of the parts is to blame, i only use cloyes or comp cams chain sets. the timing chain sees a lot of abuse with the natural vibration of the engine and having to pull along the weight of the valve train against valvespring resistance.

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post #3 of 3 (permalink) Old 09-25-06, 07:53 PM Thread Starter
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Re: What pulled my Thunderbird's teeth?

Thanks for the reply, 390. Good advice. I bought the set at an independant parts store (not like Auto Zone or Pep Boys) and thought I was getting better parts.
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