HACKS STRIKE AGAIN! GMC Yukon 6.0L V8 Engine RUINED After "Mechanic" Cuts Corners. WAS IT WORTH IT!?
120.5 هزار بار بازدید -
4 روز پیش
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Today we tear down a
Today we tear down a "bad" 6.0L LQ4 V8 Engine from a 2005 Yukon Denali. This came from a vehicle I purchased at a tow lot after it was abandoned. There is usually a reason why vehicles are abandoned and this one was quite clear once we got it started. At 252,000 miles there are so many variables as to what could be wrong with an engine, including the "quality" of the person's work who "fixed" it.
Why am I doing this? My name is Eric and I own Importapart. A full service auto dismantler. Part of our model includes dismantling blown up, failed and otherwise bad engines to salvage the good parts. We do not rebuild engines, merely supply parts to those who do!
TO BUY PARTS, visit www.Importapart.com OR email us at [email protected]
Every week I post one or more failed engine teardowns. Here are some of my past favorites:
2021 Explorer Police Interceptor 3.3L V6 https://www.seevid.ir/fa/w/FyS6hsqR9qY
2023 Nissan Rogue 1.5L 3cyl VC-Turbo https://www.seevid.ir/fa/w/Wqccs9XjMKs
Ford 351 5.8L Teardown https://www.seevid.ir/fa/w/XHveB7IJOoo
GM 3800 Series III, Is it actually bad? https://www.seevid.ir/fa/w/zMXPwQfXnIY
https://www.seevid.ir/fa/w/RWanggJ3chk Intro
https://www.seevid.ir/fa/w/RWanggJ3chk Turning the engine over, WELL TRYING TO
https://www.seevid.ir/fa/w/RWanggJ3chk How do the spark plugs look? WE HAVE MALICE IN THE COMBUSTION PALACE!
https://www.seevid.ir/fa/w/RWanggJ3chk Intake manifold off, How do the intake ports look? THERES "A" Problem!
https://www.seevid.ir/fa/w/RWanggJ3chk Removing the LH Valve Cover, How was this engine maintained?
https://www.seevid.ir/fa/w/RWanggJ3chk Cracking the LH Rocker arms loose, removing pushrods
https://www.seevid.ir/fa/w/RWanggJ3chk Removing the LH Cylinder Head. First look at the bores!
https://www.seevid.ir/fa/w/RWanggJ3chk Headgasket inspection.... Its starting to make sense!
https://www.seevid.ir/fa/w/RWanggJ3chk Cracking the Rocker arms loose on the RH Cylinder Head
https://www.seevid.ir/fa/w/RWanggJ3chk Pushrods are Mostly Good
https://www.seevid.ir/fa/w/RWanggJ3chk Unbolting Cylinder head bolts and removing the RH Cylinder Head
https://www.seevid.ir/fa/w/RWanggJ3chk MONEY SHOT!
https://www.seevid.ir/fa/w/RWanggJ3chk How bad is the damage? Headgasket, piston and bore inspection
https://www.seevid.ir/fa/w/RWanggJ3chk Science
https://www.seevid.ir/fa/w/RWanggJ3chk Cylinder head inspection. DESTRUCTION
https://www.seevid.ir/fa/w/RWanggJ3chk Water Pump Removal. I THINK WE HAVE OUR SMOKING GUN!
https://www.seevid.ir/fa/w/RWanggJ3chk THE HACK MECHANIC'S DIRTY WORK
https://www.seevid.ir/fa/w/RWanggJ3chk Harmonic Balancer Removal Attempt #1
https://www.seevid.ir/fa/w/RWanggJ3chk Harmonic Balancer Removal Attempt #2
https://www.seevid.ir/fa/w/RWanggJ3chk Harmonic Balancer Removal Attempt #3 OK FINE
https://www.seevid.ir/fa/w/RWanggJ3chk Removing the front timing cover
https://www.seevid.ir/fa/w/RWanggJ3chk Removing the Lifters & Trays, Inspecting the rollers #Allgood
https://www.seevid.ir/fa/w/RWanggJ3chk Pulling the stock 6.0L Camshaft out of the block to Inspect!
https://www.seevid.ir/fa/w/RWanggJ3chk Unbolting the pulling the oil pan
https://www.seevid.ir/fa/w/RWanggJ3chk Removing the pickup & Windage tray, MORE PROBLEMS!
https://www.seevid.ir/fa/w/RWanggJ3chk Oil Pump Removal, Disection and Inspection
https://www.seevid.ir/fa/w/RWanggJ3chk Removing the first connecting rods and pistons from the crankshaft
https://www.seevid.ir/fa/w/RWanggJ3chk Removing the last connecting rods and pistons
https://www.seevid.ir/fa/w/RWanggJ3chk Unbolting and removing the main caps
https://www.seevid.ir/fa/w/RWanggJ3chk Pulling the crankshaft out of the block
https://www.seevid.ir/fa/w/RWanggJ3chk Full rotating assembly inspection. Bearings, Pistons, Rings, Rods, Crank, Journals, ITS ALL OUT
https://www.seevid.ir/fa/w/RWanggJ3chk Removing a few valves from the "problem" cylinder head
https://www.seevid.ir/fa/w/RWanggJ3chk Summary
I really hope you enjoyed this teardown. As always I love all of the comments, feedback and even the criticism. Catch you on the next one!
-Eric
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