CP3 Is Leaking
#31
#32
#34
#36
Here is a list and source for the pump seals that will generally stop the leaks. Mixed results though. Some have reported no more leaks while others had them return in cold weather. The other choice is replace the pump with a Stage 1, maybe?
Philadelphia Ball & Bearing Co.
1346 Centre Avenue
Reading PA.19601-1412
phone # 610-376-7500
1- 25x36x7 harwal seal this is stock size
1-25x37x7 harwal seal this is stock size
1-2.50x54.00 ame o-ring this is 1mm thicher then stock
6-2.00x7.00 ame o-rings these are 1mm thicker then stock
1-2.00x67.00 ame o-ring this is stock size
Philadelphia Ball & Bearing Co.
1346 Centre Avenue
Reading PA.19601-1412
phone # 610-376-7500
1- 25x36x7 harwal seal this is stock size
1-25x37x7 harwal seal this is stock size
1-2.50x54.00 ame o-ring this is 1mm thicher then stock
6-2.00x7.00 ame o-rings these are 1mm thicker then stock
1-2.00x67.00 ame o-ring this is stock size
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wildbill (04-12-2008)
#38
Make sure you check the thread in the Duramax section and Cummins section on the DIY mod for the CP3. If this doesnt help then shoot me a PM. I'm personal friends with 4 of the industry experts on the CP3 system so I PROMISE you they will give you the answer you need or tell you which way to go.
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wildbill (04-12-2008)
#39
CP3 leaking
A leaking CP-3 rarely is the cause of hard starts. They don't suck air and usually only seep becuase of the expansion rate differences in th epump pieces. The pump leaks in cold weather and usually quits in the summer. If it is the pump you will see other performance problems also.
Mine leaks every winter and have had no starting problems.
Mine leaks every winter and have had no starting problems.
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