So my 5.3 has a knocking sound, could it be the cam, lifters and push rods? Any local shops in SA that wont charge an arm and a leg to get this fixed? The seller is giving me the run around and i just want to get my 84 on the road!
http://www.youtube.com/watch?v=7XmhZANIFug
Can you get a stethoscope to pinpoint where the knock is coming from (you can get one from Harbor Freight for cheap)? If not, maybe a long handled screwdriver?
- Paul J.
2006 Silverado LT3 L33 Z71 - Mods: K&N Air Filter; Taylor Wires
2008 Azera Limited - Mods: (Yah, wife's car ... not happening)
(SOLD) 1994 Camaro Z28 - Mods: (Too many to mention)
(SOLD) 2004 Suburban 5.3L Z71 - Mods: Flex-a-Lite 292 Monster Fan
(SOLD) 2000 Silverado 5.3L Z71 - Mods: (NTIKO)
(SOLD) 1991 Suburban 350 2WD - Mods: (NTIKO)
I guess that will be my next purchase. I also took the valve covers of and the one on the driver side had marks from the rockers. Those sections weren't really stained by the oil.
sounds like a lifter problem to me!!
1982 c10 lsx swaped, NP tuned, true duals, 4:11s, trutrac, e-fans, CAI
That fan looks safe
Slowest in Oklahoma...
My bet is on a lifter.
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/
AgreedOriginally Posted by dropem
I was told to use mystery oil and use the truck for a couple of days and see if that helps the lifters. What do you guys think?
I think that you would only be hiding the problem from yourself for a little while by putting the equivalent of oily molasses into your engine, that stuff isn't a fix for the problem it's a cover up kinda like putting red tape on a busted out taillight
You said the rockers are hitting the valve covers. Are they aftermarket? That could be your sound. Check and make sure they are tight. Rockers shouldn't be touching the valve cover.
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