ok well after doing a compression test on my motor we discovered #5 cylinder has only 4-5 pounds af compression so we need to do a leakdown test now and see what messed up so what is a good way to get the motor to TDC on number one and what is the firing order of these motors.
Thanks
Junkyard 5.3 milled heads 200 shot, built 4l80e with circle D 4000 multi disc converter
EPS cam 23x/23x 600/603 112lsa
KP 6 link bagged with Accuair E-Level
http://www.nitrousexpress.com/
the firing order is in your hptuners...i believe in the engine diagonstics folder where you cant turn on and off the DTC's
2006 silverado SS....Clifford Jr...turbo coming soon
1970 Chevelle ly6 swap....d1 coming soon
Sounds like a hole in a piston or a bent valve or maybe all above
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
yeah im hoping for something in the head and nothing in the motor itself
Junkyard 5.3 milled heads 200 shot, built 4l80e with circle D 4000 multi disc converter
EPS cam 23x/23x 600/603 112lsa
KP 6 link bagged with Accuair E-Level
http://www.nitrousexpress.com/
If it's that low on squeeze and makes no really loud noises my bet is a piston or something else in the bottom end. Sorry for the trouble. Let us know what you find ASAP.
well heres what happened the rocker arm failed holding the exhaust valve open and held the pushrod up heres the pics.
They are replacing it under manufacture defect
Junkyard 5.3 milled heads 200 shot, built 4l80e with circle D 4000 multi disc converter
EPS cam 23x/23x 600/603 112lsa
KP 6 link bagged with Accuair E-Level
http://www.nitrousexpress.com/
damn thats some sweet carnage. anything else messed up?
1951 3100
1984 C10
Hope pieces/parts didn't get into anywhere else. If not, it should be a relatively easy fix. Glad you found the problem...
07 Z71 4x4, 6.0L, 3.73s, Turbonetics T76 @ 10 psi, 75 shot, Snow meth kit, PLX DM-100 wideband gauge, Nelson tune, Comp 212/216 .557/.561 114 lsa, 60# injectors, Yank 3000, 4L80E , Magnaflow - dumped, e-cutout
Line-X, Pace Edwards Full Metal Jackrabbit bedcover
Trey, Damm that sucks but good thing its warrantied.
I would recommend you pull the head. The rocker could have just failed, but it the valve got stuck open and the piston hit it, that piston could be damaged.
And its a cheaper fix Now if its just a dent in it, .
Drop a line, if you need anything. Hope to be dynoing this week with the test truck, see you around town.
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Damn Trey that didnt take long...
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