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Hi everyone, I just got my motor fully rebuilt, lq4/6.0
I've got it tuned & it was running amazing til 2 days later, truck started acting like it had a misfire, pulled over & popped the hood open & notice there was oil by the valve cover & smell fuel. So when I opened the oil cap , I smelled the fuel even more. & when I check the oil dipstick for the motor there was none at all. Need help any ideas on why there's fuel where the oil is at & why I'm losing oil ? I couldn't pin point where the oil goes I even noticed at the bottom of the motor there was oil. I check the rear main seal & it's fine no oil leaks. So any ideas? Btw these are 50lb after market injectors, 525 hellcat fuel pump, & a corvette fuel filter regulator. Please help!!! ( The picture listed, when I touched the liquid and smelt it, it smelled like fuel vs motor oil)
Stuck injector dumping fuel ?
Notice your header bolt is backed out.
.The MOST important question, HOW MUCH OIL did you have to add to make full mark on stick ?
Crankcase flooded with fuel, washed the rings out, and the oil was blown out thru the tail pipes.
NO WAY your "tuner" had it right....
And loose exh manifold bolts are a sure way to screw up even the best "tune".
You need to do a complete test of this entire set up with leak down, compression tests.
Lastly, you provide no details as to the build on this motor.
What do you have in this engine that needs 50# injs and a big fuel pump?
Crankcase flooded with fuel, washed the rings out, and the oil was blown out thru the tail pipes.
NO WAY your "tuner" had it right....
And loose exh manifold bolts are a sure way to screw up even the best "tune".
You need to do a complete test of this entire set up with leak down, compression tests.
Lastly, you provide no details as to the build on this motor.
What do you have in this engine that needs 50# injs and a big fuel pump?
Yes sir, all cylinders hold compression.
but sorry, its 6.0 freshly rebuilt, 238/246 109 lsa tsp cam, tbss intake manifold, 92mm tb, long tube headers, & 150shot. (Haven't used the nos after built)
corvette fuel regulators are no good with pumps over stock. you likely have too much fuel pressure
yes sir, I was just told that by the tuner, telling me to get a stronger fuel pressure regulator. He was also saying since it's a 525 fuel pump the psi is alooot higher than the corvettes fuel regulator.
Crankcase flooded with fuel, washed the rings out, and the oil was blown out thru the tail pipes.
NO WAY your "tuner" had it right....
And loose exh manifold bolts are a sure way to screw up even the best "tune".
You need to do a complete test of this entire set up with leak down, compression tests.
Lastly, you provide no details as to the build on this motor.
What do you have in this engine that needs 50# injs and a big fuel pump?
the bolt was loose because i was removing the headers, i always start from the back since its a pain.
Stuck injector dumping fuel ?
Notice your header bolt is backed out.
.The MOST important question, HOW MUCH OIL did you have to add to make full mark on stick ?
like 6quarts of oil, sorry the bolt was out bc i was about to remove the headers, i always start with back since its a pain. & the injectors can get stuck where they stay dumping constant fuel ? I didn't know that. Thank you
yes sir, I was just told that by the tuner, telling me to get a stronger fuel pressure regulator. He was also saying since it's a 525 fuel pump the psi is alot higher than the corvettes fuel regulator.
First thing first.
Leak down and comp tests and record the results.
Next FIND a tuner that knows WTF he's doing. An after the fact comment like he made is total bullshit. He should have checked the system BEFORE he did a "tune". He should have seen that FP was too high.
Let me guess, he gladly took your money....
If you had to add 6 qts, either your brgs are junk, or the dipstick is wrong, and the engine is now way over full.
07-29-2024, 08:19 PM
Smell Fuel From Valve Covers HELP!!! 
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