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Rocker box breather

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  #1  
Old 02-27-2021, 06:58 PM
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Default Rocker box breather
Any luck seperating the halves without damaging the breather? Stuck good. Thanks.
 
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Old 02-27-2021, 07:11 PM
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Which version ?

Plastic
Aluminum
Stamped steel
 
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Old 02-27-2021, 07:14 PM
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Plastic
 
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Old 02-27-2021, 07:33 PM
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I'm suspecting the style I have is one piece. Incorrect?
 
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Old 02-27-2021, 07:47 PM
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The plastic breather are the first gen and obsolete now. Then they went to a newer aluminum style that is also obsolete and now they have a nice metal version that comes with a sponge and umbrella valve. So if you have the plastic ones don’t bother putting them back in, they’re junk. Get the new ones.
 
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Old 02-27-2021, 08:04 PM
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!@#$ . Thanks. Bike Week coming quick. Hope local HD has it.
 
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Old 02-27-2021, 08:20 PM
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Originally Posted by Shadowjag
!@#$ . Thanks. Bike Week coming quick. Hope local HD has it.
This is important

Use the bolts that come with the new breathers and NOT the old ones. They're different lengths. Also, clean the blind holes with air and some q-tips so you don't break the cast aluminum.
 
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Old 02-28-2021, 10:46 AM
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Correct style? Way different. Anything on installation?


 
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Old 02-28-2021, 11:45 AM
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Originally Posted by Shadowjag
Correct style? Way different. Anything on installation?

correct
 
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Old 02-28-2021, 12:20 PM
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I have learned that a lot of guys drill the oil return port to .125"... I did it to my new heads because I was told it was necessary...
 
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