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Old 04-04-2009 | 01:52 PM
  #312  
RC Specialties
 
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From: Zachary, LA
Default RE: OS engines users Club
Bax,

I have a question you may be able to answer. What is the exhaust thread size on the OS FS120? It appears the newer models have a 14x.75 thread. Some of the older engines have a different thread. Can you clarify the differences and when it changed?

Jim
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