BMW S55 Pinned Crank Hub & Timing Chain Replacement Pt.1 (2015-2021 BMW F80 M3, F82/83 M4, F87 M2)

Описание: ►BMW's S55 engine was a blessing for M fans worldwide. Although it meant the end for its predecessors' high-revving, naturally-aspirated engines, the turbocharged straight-six is an ultra-reliable, overbuilt powerhouse that produces a fat power band in stock form. However, pushing beyond factory output stresses the timing chain drive system. If you want to take advantage of the S55's ability to make significant power, you should look into installing a modified crankshaft hub.

In part one of this pinned crank hub replacement, you'll get a feel for just how involved this job is. You'll need to drop the oil pan and mechanically lock the timing system with special tools to ensure it all goes back together in the proper orientation, which will cause severe damage if not done correctly. On top of that, you'll need to acquire a handful of specialty tools even to reach the parts you're replacing. If that doesn't sound like your expertise level, watch it anyway, and maybe you'll surprise yourself.

In part one of this three-part DIY, FCP Euro's BMW Expert, Gareth Foley, disassembles a BMW S55 engine to reach the crank hub in an F82 M4.

00:00 - Intro
02:05 - Specialty Tools
04:16 - Tools Needed
06:49 - Job Start/Battery Disconnect
07:23 - Reinforcement Brace Removal
09:37 - Strut Brace Removal
11:11 - Intake/Charge Pipe Removal
14:57 - Engine Cover Removal
16:37 - Engine Harness Removal
22:32 - Undertray Removal
23:33 - Coolant Drain
24:18 - Fan Removal
26:30 - Water Pump Removal
27:55 - Charge Cooler Removal
29:48 - Serpentine Belt Removal
31:21 - Harmonic Balancer Removal
31:45 - Setting TDC/Locking Timing
41:51 - Crank Seal Removal
42:17 - Crank Hub Removal
42:46 - Timing Chain Removal

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