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kil0shady 02-22-2009 12:12 AM

Engine Knock
I need a second opinion on a motor knock. I ran my car at the track and it ran great. On my way home my check engine light went on so i pulled over and checked it out. Was pulling a bank 1 is running to lean so i got it home and turned it off. In the morning I turned it over and a horrible knock came from the motor. It sounded like I threw a rod bearing. Not sure though, any input?
EJ20 with fp green, 800cc injectors, protuned, FMIC, Arp head studs, Crower valve train, light weight pully, flywheel, new timing belt.

VD5505 02-22-2009 09:19 AM

drain the oil and look at the oil really colse, you can drain the oil through a old white T shirt and that will catch to see if you have any metal in the oil, and also take all your plugs out and look at them and if you can do a compression test

basco 02-22-2009 09:21 AM

what exactly did the knock sound like...and where was it coming from

kil0shady 02-22-2009 10:52 AM

just a very loud consistent knock coming from the engine

VD5505 02-22-2009 10:53 AM

did your check engine light ever flash?

nagyhead 02-22-2009 11:04 AM

sounds like its time to tear it apart.

kil0shady 02-22-2009 12:25 PM

yeah for a little it did

VD5505 02-22-2009 12:57 PM

well like dumdum said i think its time to rip your engine down did you ever do a compression check for the heck of it?

turmic 02-23-2009 02:09 PM

[quote=VD5505;215895]well like dumdum said.... [/quote]

Heh, its semantics. Nagy is not dumdum...though his rep bar is getting quite close. :p

VD5505 02-23-2009 04:00 PM

Shoot my bad i ment to say Nagyhead i saw the red print and just thought of DumDum sorry about that nagyhead :)

nagyhead 02-23-2009 06:12 PM

its cool, at least you confused me with someone who knows his shit!!

wrxshotta 02-23-2009 10:43 PM

loll nagy/dum dum...both know there stuff:)

moscstupido 02-23-2009 11:12 PM

sounds like you could have blown your piston rings which would cause permanant piston slap

pzr2874 02-24-2009 06:05 AM

Every pull the injectors? Friend had an issue and sounded like a lite knock and turned out to be 2 of his injectors were clogged (bright sided way to look at it):)

zmanoside 02-25-2009 07:21 AM

Well, it looks like what was needed to be said was said...what did you run at the track lol??

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