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Old 09-09-2004, 12:04 AM   #1
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Default How many washer should be used?

How many washer(or how many mm should proper) should be used in the engine head , when running in and normal condition?
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Old 09-09-2004, 01:03 PM   #2
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what engine, and how much nitro are you using. Usually the engine paperwork will tell you how much nitro the engine can safely handle the way it comes from the factory.
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Old 09-26-2004, 04:18 AM   #3
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hi adsl,
more head shims mean less compression, less head shims mean more compression. when the motor is brand new, it can be difficult to turn over:
1. because of extremely tight fit with piston and sleeve.
2. heeps of compression.
by adding head shims you can get rid of some of this compression

also when running a higher percentage of nitro some people run more head shims.
i hope this helps.
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