CP3 leak myths - Page 3

MikeyB · 03-11-2006, 07:29 AM

Appears that majority of the issues are up north during winter months. Could be the extreme temperature swings and the CP3 housing being aluminum which has a high expansion/contraction rate may have an effect. Also how pliable is the o-rings in cold temp, do the o-ring harden up when cold?
Look at the Challenger disaster and the booster rockets o-rings seal issues.

Rich, if you could put a couple of the factory o-ring seals in the freezer could help determine if it's a seal/temp issue. If the seals become very hard and non pliable when frozen that may just be the problem.

MikeyB

Last edited by MikeyB : 03-11-2006 at 07:33 AM.

rich2500 · 03-11-2006, 12:06 PM

Could be the extreme temperature swings and the CP3 housing being aluminum which has a high expansion/contraction rate may have an effect

thats exactly what I think is happening

__________________
2004 305/555 6sp.DIY cruise control, 373's, bd short shift,homemade boost elbow,autometer boost and egt, isspro fuel press.,zenon flares,quad race box or sp diesel stage 1 stacked with diablosport predator, modded tone ring,bd pusher pump(and yes the truck still runs if the oem pump dies)afe intake and tt,sp diesel overboost eliminator,DIY modded cp3,

rich2500 · 03-11-2006, 04:39 PM

I put the old seals in my freezer for about four hours and when I got them out they were very stiff but softened very quick.

__________________
2004 305/555 6sp.DIY cruise control, 373's, bd short shift,homemade boost elbow,autometer boost and egt, isspro fuel press.,zenon flares,quad race box or sp diesel stage 1 stacked with diablosport predator, modded tone ring,bd pusher pump(and yes the truck still runs if the oem pump dies)afe intake and tt,sp diesel overboost eliminator,DIY modded cp3,

mrmajestic · 03-11-2006, 06:54 PM

The thermal coefficient of aluminum is 13 ppm per degree Fahrenheit. Steel is 6.5 and glass I believe is 1. I think your thoughts have merit.

__________________
1999 2500 Quad Cab, 5spd, 4X4, 3.55 LSD, 152K miles, Buckstop w/9K winch, Torque King M/S, K&N FI Perf Kit, 275HP Inj., TST PM3/Smarty stack, PDR boots, Wabro/Areomotive and 1/2" line, PAC Brake w/SWAC, Summit Turbo back 4" pipe, EZ drain, silencer ring MIA, pyro/boost/FP gauges, SBC Con OFE w/HD Adj Hyd, Brite Box, DSS, Centramatics, BFG LT285/75R16/E

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03-11-2006, 07:29 AM	#25 (permalink)
MikeyB Diesel Freak Join Date: Jan 2006 Location: Tomball, Texas Posts: 697 MikeyB's Truck Pics	Appears that majority of the issues are up north during winter months. Could be the extreme temperature swings and the CP3 housing being aluminum which has a high expansion/contraction rate may have an effect. Also how pliable is the o-rings in cold temp, do the o-ring harden up when cold? Look at the Challenger disaster and the booster rockets o-rings seal issues. Rich, if you could put a couple of the factory o-ring seals in the freezer could help determine if it's a seal/temp issue. If the seals become very hard and non pliable when frozen that may just be the problem. MikeyB Last edited by MikeyB : 03-11-2006 at 07:33 AM.

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03-11-2006, 12:06 PM	#26 (permalink)
rich2500 Tech Specialist Join Date: Jan 2006 Location: Pa. Posts: 387 rich2500's Truck Pics	Could be the extreme temperature swings and the CP3 housing being aluminum which has a high expansion/contraction rate may have an effect thats exactly what I think is happening __________________ 2004 305/555 6sp.DIY cruise control, 373's, bd short shift,homemade boost elbow,autometer boost and egt, isspro fuel press.,zenon flares,quad race box or sp diesel stage 1 stacked with diablosport predator, modded tone ring,bd pusher pump(and yes the truck still runs if the oem pump dies)afe intake and tt,sp diesel overboost eliminator,DIY modded cp3,

03-11-2006, 04:39 PM	#27 (permalink)
rich2500 Tech Specialist Join Date: Jan 2006 Location: Pa. Posts: 387 rich2500's Truck Pics	I put the old seals in my freezer for about four hours and when I got them out they were very stiff but softened very quick. __________________ 2004 305/555 6sp.DIY cruise control, 373's, bd short shift,homemade boost elbow,autometer boost and egt, isspro fuel press.,zenon flares,quad race box or sp diesel stage 1 stacked with diablosport predator, modded tone ring,bd pusher pump(and yes the truck still runs if the oem pump dies)afe intake and tt,sp diesel overboost eliminator,DIY modded cp3,

03-11-2006, 06:54 PM	#28 (permalink)
mrmajestic Cummins Nut Join Date: Nov 2005 Location: Lititz, PA Posts: 492 mrmajestic's Truck Pics	The thermal coefficient of aluminum is 13 ppm per degree Fahrenheit. Steel is 6.5 and glass I believe is 1. I think your thoughts have merit. __________________ 1999 2500 Quad Cab, 5spd, 4X4, 3.55 LSD, 152K miles, Buckstop w/9K winch, Torque King M/S, K&N FI Perf Kit, 275HP Inj., TST PM3/Smarty stack, PDR boots, Wabro/Areomotive and 1/2" line, PAC Brake w/SWAC, Summit Turbo back 4" pipe, EZ drain, silencer ring MIA, pyro/boost/FP gauges, SBC Con OFE w/HD Adj Hyd, Brite Box, DSS, Centramatics, BFG LT285/75R16/E