Anyone familar with Vacuum design of ls1/pcv/intake
11-06-2005, 01:01 PM
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Anyone familar with Vacuum design of ls1/pcv/intake I have been troubleshooting a oil burning problem. I have traced it to coating the inside of my intake runners and up into the intake manifold. I have had the shortblock rebuilt, as well as the heads rebuilt, valve reground, new valve seals, etc.
I have ls6 pcv valley cover with AMW catch can and pcv.
I have tried running WITH and WITHOUT this system hooked up. I.E. nothing going to the intake manifold, and there is STILL oil heavily coating the entire intake runner and all the way up and into the intake manifold.
Therefore I can only conclude it is getting pulled out backwards from the bottom up to the top of the motor, either through the valves or otherwise. It only burns oil when I let off the gas at high RPMS IN GEAR (M6) then get back on the gas.
When the throttle plate is closed at high RPM in gear, I have heard this creates a large vacuum situtation. Is this true? Anyone have any useful input?
I have ls6 pcv valley cover with AMW catch can and pcv.
I have tried running WITH and WITHOUT this system hooked up. I.E. nothing going to the intake manifold, and there is STILL oil heavily coating the entire intake runner and all the way up and into the intake manifold.
Therefore I can only conclude it is getting pulled out backwards from the bottom up to the top of the motor, either through the valves or otherwise. It only burns oil when I let off the gas at high RPMS IN GEAR (M6) then get back on the gas.
When the throttle plate is closed at high RPM in gear, I have heard this creates a large vacuum situtation. Is this true? Anyone have any useful input?
