Thread: 13mm pump mysteries
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Old 06-07-2018, 12:15 PM   #4
turbo2387
 
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Name: turbo2387
Title: Nipple Fluffer
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Join Date: Jun 2011
Location: Indiana
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Posts: 665
have you checked your delivery valve stacks? might have something funcky going on there. had a issue with free revs with some old 131's once upon a time.
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