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Home » Public Forums » GMCnet » X7525 MM Spark Plug Torque Specifications (Question regarding two different torque specifications)
X7525 MM Spark Plug Torque Specifications [message #256317] Wed, 23 July 2014 21:10 Go to previous message
larry.whisler is currently offline  larry.whisler   United States
Messages: 356
Registered: August 2005
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Senior Member
I am planning to change the spark plugs in the coach in the near
future so I thought that I would look up the torque specification
for the plugs.

To my amazement, the MM lists two different torques for spark plugs,
page 6A-65.

Plugs on the HEI system lists 25 ft lbs of torque and the plugs
using the breaker points ignition system lists 35 ft lbs.

This does not make any sense to me. Perhaps someone with more knowledge
can explain to me.

larry
 
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