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i did drive it home, 23 - 26 miles, no power loss, to be safe ordered tct from advanced, so if it doesn't fix it i can return it if it doesn't fix then i have to figure out what to do with it
Sorry mate but that really does not sound like tensioner noise to me ! have a feeling you are wasting your money by buying one, If it was my car and I had the option to return it I would, in a heart beat. Cut your losses and walk away..
I'll throw my guess in and say that's piston slap/scored walls. Drain the oil and send to Blackstone to know for sure.
It does actually sound like piston slap. My old Trailblazer SS (LS2) used to sound like that for a few seconds on a cold start. Has the OP used a stethascope to try and isolate where exactly the sound is coming from?
where I'm not now, jack stands, air box, belt, alt off, compressor almost off, I took a break to use the s2k bat to make my riding mower work and cut the grass, not a part of it, but still important :P
PS: if you don't have lithium powered impacts, I'd highly recommend you get some.
PSS: please excuse my garage organizational skills
can you confirm you valve adjustment settings, and your method of determining the feeler gauge to measure (go no-go, snug, slides easily)
sounds like loose valves to me.
That's why I posted, it sounded top end when I bought the car but now i'm not so sure. In person the noise sounds like it's coming from everywhere. it's quiet when it starts cold and by the time temp reaches the third bar it's obvious.
angled feeler gauges,
intake 0.21-0.25 mm ( mine are for 0.008-0.010 in) set to 0.008 (0.203 mm) slides easily and 0.010 (0.254 mm) snug
exhaust 0.25-0.29 mm set to 0.010 (0.254 mm) go no-go
they were all off, 1 way out, about 0.33 mm
After the adjustment, the noise changed (different sounds in the videos) when verifying clearance, i had my friend check the clearances I had set by comparing to the FSM
the noise i heard after could be heard under the car and with the hood shut, I've been under the impression valve noise is muffled by a closed hood.
Also the previous owner did admit the noise started after it was run low on oil.
As of now the car still sits as it did from the last pics due to my work week, I was planning on continuing tomorrow.
Local dealer wants $100 for diag or $378 to do valve lash. at this point i'm probably only 45 min into tear down, if you think a dealer opinion is worth while, I can get their thoughts.
02-18-2018, 01:30 AM
if it doesn't fix then i have to figure out what to do with it
