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3er 3er is offline
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Join Date: Apr 2018
Car: E90 335i xDrive
Default Maintenance while engine is out of car - 05-15-2020, 02:51 PM

Hello fellow enthusiasts,

I'm finally nearing my full return to the N54 community. I picked up an engine to replace my knocking engine today. It's got 68k, and the CARFAX makes it out to be a dealer-serviced engine with minimal issues.

It's sitting in the garage right now, awaiting a thorough cleaning and maintenance. In the meantime, I'm seeking a comprehensive list of what I should take care of while I have unrestricted access to the engine.

So far my list includes:

Valve Cover Gasket
Oil Pan Gasket
Turbos (Stage 3s )

That's all that comes to mind for me, so if anyone else here has suggestions, I'm all ears! TIA

E46 M52TUB28 - Gone but never forgotten
E90 N54 - Survivor of an engine transplant!
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JuniorB JuniorB is offline
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Car: 2007 e60 5 series
Default 05-15-2020, 09:06 PM

I done the same thing while mine was out so any leak would be the last issue. I done rod bearings and arp bolts while it was out. Every o ring was done, even the cooling hoses. Some tips along the way, prepare for anything! I used never seize on every bolt, the turbo oil and coolant hoses, plugs and of course Eldor coils. I removed all those pinch hose clamps, and replaced it with ss worm clamps. I added two 2g grounds, and ditched the factory one. All new pullies, and tensioner, and a aluminum ps pully. Don’t forget all new exhaust studs, and nuts.
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Vorsprung_CJB Vorsprung_CJB is offline
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Car: 135i N54
Default 05-16-2020, 01:57 PM

Rear main seal, water pump if that is an original at 68k, maybe belts.
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SocalBMW SocalBMW is offline
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Car: 2013 335is
Default 05-20-2020, 10:00 AM

Walnut blast it
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Stevo585 Stevo585 is offline
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Join Date: Feb 2019
Car: 2007 335i Coupe MT
Default 05-20-2020, 11:14 AM

I'd recommend what JuniorB said and walnut blast it for sure!

2007 e92 335i 6MT MSPORT -- DAW Stage 4 Turbos -- AD Engineering Port Injection -- VRSF Down Ps -- BMS DCI -- VRSF Inlets -- VRSF Aluminum Outlets -- ARM Chargepipe -- Turbosmart DVs -- 7" ARM FMIC -- LSD -- 335is Clutch -- BMS Short Throw -- Stage 2 Bucketless -- n20 Tmap -- Custom 3.5" Single Exit Exhaust
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