donjetman
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- Oct 22, 2018
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Yep and worse for mine before we did the whole 9 yards in the TSB. My catch can now has about a teaspoon in it every 1K or so. Very satisfying when I empty it.Here's what my sparkies looked like before I installed the updated valve cover, catch can, etc View attachment 345576
Yep, it ran fine, no missing or codes. I cleaned them in my media blast cabinet, put them back in.Holy Crap.... Amazing it even ran with those
That’s bananas. After taking a photo I would have fed them to the dumpster. We’re going to have add some character to your “call sign” (donjetman-iac).Yep, it ran fine, no missing or codes. I cleaned them in my media blast cabinet, put them back in.
They're still in the engine and running fine w/no codes 40k miles later(170k total). I get 2 oz from my catch can every 10k miles
1- Pulling the valve cover showed the previous design valve cover was in place. Replacing with the newer design is something I hope will help this situation.
2- When pulling the old valve cover, I discovered the rear-most bolt was not torqued to the same spec as the other 3. Weird, as I mark each of my bolts when finished torque patterns to spec, but I can confirm it was less than 1/2 the torque needed to remove the bolt in comparison to the others. I feel confident much of my leak was being generated from there, but just in a location on the back of the head/block that I could not see before.
3- I have just under 500 miles after the VC change and proper torque of the valve cover. I do not see any of the oil drip that existed before.
I did the rear main seal, valve cover, catch can, etc 3+ yrs and 40k miles ago. No regrets. It's still dry as a boneAny update on this catch can level after some notable time. My 2007 Yukon Denali is doing the same thing. Went from leaking a quart a month to a quart a week suddenly. Getting the updated valve cover tomorrow.
Hey y'all, I'm new to the Yukon experience. This is the first time I've read about the valve cover issue. I planned to remove the valve covers to redo the gaskets but now I'm going to replace them because of what I read here. Just a quick question, does anyone know if these would eliminate that issue altogether with the old design?
GM LS Cast Aluminum Valve Covers with Coil Mounts Chevy Small Block V8 293 325 346 364 376 427, Black
These cast aluminum valve covers are a great way to improve the look of your LS engine, without any radical changes to its configuration. The cover has an increased height to allow for added valvetrain clearance and features studs for mounting LS coils with 72mm bolt spacing. It also features a...swperformanceparts.com