snketr

iTrader: (3)

So my wife just fired up her 09 G8 GT and it was making what sounded like a rod knocking and filled the garage with black smoke out the exhaust. I ran out to the garage and told her to shut it off. I then checked all the fluids and it's full. Oil has no coolant in it that I've seen on the dipstick. Going to go drain the oil to make sure though. I just fired it up just now so I could hear the noise myself and the knocking is gone but the valvetrain sounds loud way louder than the normal lifter tick. I have no experience with the L76 yet, so was hoping someone has some suggestions on possibilities to check out besides drain the oil and check it and doing a compression check.

Jimbo1367

pull off the valve covers and see if you have any unusually loose rockers.

mchicia1

iTrader: (5)

The stock DOD lifters are prone to going bad.

snketr

iTrader: (3)

Yeah, after doing some research and listening to it, I just ordered a AFM/DOD delete kit and a cam.

alchargo

The factory Eaton lifters are crap. Even the later redesigned Delphi lifters leave something to be desired. DOD delete kit is about the best option.

mchicia1

iTrader: (5)

Do yourself a favor and at least put in the Morel 5315 lifters.

I used LS7s in mine and I am about to swap them out because of on and off again low RPM ticking.