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06 5.9 cummins # 6 piston low compression
6 new injectors and a new CP3 pump,, compression test says # 1- 5 pistons hav the normal 500 psi but #6 piston only has 50 psi,, do yall think ill b fine with just replacing #6 piston and putting all new rings in? Of course boring is idea but will it b strong w just doin this?? Help appreciated. THANKS A LOT
it might be it might not be, it depends on what you find once it is opened up.
2014 Ram 2500 CCSB Ram Box Larime
2011 Ram 5500
2006 Diesel Jeep Liberty
RIP. 2016 Tradesman 2500 picked up 9/28/16 MM3 DRD Tuning 107K miles wrecked by jeep wrangler.....
Other Toys: 1973 Charger Bougham edition 400 big block 42K original miles
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6 in a row makes her go
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@Joshua graber to the group.
From what is stated so far it is hard to determine and give you one complete answer. It can be rings, or even a small gasket leak, almost anything is possible. I agreee with @F350Cummins, until it is open, it's guessing.
Jim
2006 ~ 2500HD, Big Horn Edition, 5.9, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Kit, 60 gal main tank, 110 gallon in-bed tank, XX-Fuel Filter System, Coolant Bypass Kit, Mag-Hytec front & rear end covers and trans pan, 285 x 70 x 17
"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States, where men 'were' free." ~ Ronald Regan
Joshua graber liked this post
My o5 had 250 psi in #1 I pulled it and installed new piston and rings cylinder had deep scratches when done it had 350 psi and 2500 miles later it's back to a 5 cylinder. Hard to believe it only has 50psi did they retest that cyl does it have a blowby issue if not don't worry do the oil cap test with only 250psi in 1 cyl my oil cap would jump off the valve cover with only 50psi your oil cap should fly off your valve cover. Try it unscrew oil cap place it upside down with engine running
05 2500 4dr shortbed 4" lift on 35's, 4" straight pipe, Afe intake
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