Another JUNK BMW N63? Yeah, they're still out there. This is the 4.4L Hot-V Twin Turbo V8 from a 2011 BMW 650. These engines can be fond in the X5, X6, 550i, 750i, 650i etc and especially the early N63(Non-Technical update), are absolute garbage. These engines have so many common failure modes and both the parts AND labor are so expensive to keep running right that most people throw them away at the first repair bill.
This engine was a core return from a sold engine, and had clear signs it was bad, like equal and matching holes on both sides of the block, but why? What killed this N63? Was it valve stem seals? timing chain guides? worn rod bearings? The answer may surprise you, but I've torn down 30-40 of these, and I've seen this one before.
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https://www.blipshift.com/?utm_source=i-do-cars&utm_medium=affiliateEvery week I post a new teardown video of a blown up or suspected bad engine. Check out a few of my favorites!
BMW N20, The worst BMW Engine
https://youtu.be/qJ1LsxFpfCQMercedes Twin Turbo V8 M278
https://youtu.be/ubMyWT49IWsAudi S6 V10 MAYHEM
https://youtu.be/AMj5bIRqiLEWhy am I doing this? My name is Eric and I own and run Importapart, a full service auto dismantling business. Part of our model includes buying blown up and bad engines to dismantle for parts. We salvage the good, sellable parts and recycle rest. No, we don't rebuild engines but we do sell parts to people who do!
As always I hope you enjoyed this video. I love all of the comments, feedback and even the criticism. Catch you on the next one!
-Eric
00:00 Intro
03:59 No sparkle plugs, so lets pull the turblows
05:45 THEY ALL LEAK HERE
07:56 MORE damage!
09:10 Removing the injectors as if I'm a professional
10:45 Unbolting the RH Valve cover. Looks ok!
11:51 Rinsing and repeating on the LH valve cover
12:27 Removing the Vanos solenoids. Don't be cheap, DON'T BUY THESE
14:10 Struggling to remove the crank bolt, she's TIGHT
15:24 Removing the water pump and safely storing it
16:42 Unbolting the lower timing cover BEFORE the heads, Like a rebel
18:08 A Quick Look at the timing system. All clear!
20:10 Crammin the cam cramps loose on the RH Head, inspecting valvetrain
21:58 Crackin the head bolts loose and lifting the RH Cylinder head.
23:26 RIGHT SCIENCE
24:14 Crammin the cam cramps loose on the LH Head, No troubles here but, coolant??
25:59 Cracking the LH head bolts loose, pistons look ok?
28:28 LEFT SCIENCE says left bank is NOT O.K.
29:03 Removing the lower oil pan
30:30 There's some engine shrapnel but I expected MORE
33:37 Unbolting the upper oil pan, that oil pump looks broken!
35:14 Dismantling the oil pump, its not terminal
38:33 Starting to remove the rods and pistons
40:53 Can we get this apart?
42:59 Unbolting the main caps and removing the crankshaft
43:46 Complete rotating assembly inspection. SO THATS WHAT HAPPENED?
49:54 Summary