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Old 04-03-2018, 07:23 PM   #1
jpschade

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47re air check

I just put a 47re together. When I apply air to direct clutch I get a thump but also some hissing. I pulled a core off the shelf and get the same exact thing (thump with hissing). I changed seal on drum and piston, didn't see any cracks changed piston no change. Put another drum in with new seals and same deal. Any ideas?
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97 dodge eclb SAC 5x14's, 467.7 fmw , 024s, tork tek ofv, fully built trans, dpc triple disc, no fuel plate, afc live, 4k gov springs, 28* timing, t4 steed w/ 44mm tial, racked barrels

1990 w250 5 speed cranked pump

2006 rclb 4wd stock for now
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Old 04-04-2018, 10:40 AM   #2
joefarmer
 
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how much pressure are you using to test?
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49 Dodge 1.5t 12v RH swap | 99 F250 12v RE test rkt | 11 X5 'no soup'
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Old 04-04-2018, 02:59 PM   #3
jpschade

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120 or so
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97 dodge eclb SAC 5x14's, 467.7 fmw , 024s, tork tek ofv, fully built trans, dpc triple disc, no fuel plate, afc live, 4k gov springs, 28* timing, t4 steed w/ 44mm tial, racked barrels

1990 w250 5 speed cranked pump

2006 rclb 4wd stock for now
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Old 04-05-2018, 12:17 PM   #4
joefarmer
 
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According to the build team at Firepunk, it should vent some when tested at 120. As long as the seal lip is okay, you should be fine.
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brandon'); DROP TABLE Users;--
49 Dodge 1.5t 12v RH swap | 99 F250 12v RE test rkt | 11 X5 'no soup'
firepunk.com
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Old 04-05-2018, 02:10 PM   #5
jpschade

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Thank you and the guys at Firepunk very much!!!
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97 dodge eclb SAC 5x14's, 467.7 fmw , 024s, tork tek ofv, fully built trans, dpc triple disc, no fuel plate, afc live, 4k gov springs, 28* timing, t4 steed w/ 44mm tial, racked barrels

1990 w250 5 speed cranked pump

2006 rclb 4wd stock for now
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