Help with Rebuilding My N55 F32

okllee · Yesterday, 06:37 PM

I had a 2014 bmw 435 and i drove it though water and it was water damaged and written off. BMW told me it was likely bent rods as it had a bad compression test. It still runs just a rough idle. I bought it back from auction and am planning on rebuilding the engine. Im planning on replacing rods, all bearings, rod bolts, piston rings and maybe pistons. should I replace the crank? Is there anything else that should be replaced? what is the best brand for each of the parts? is there any upgrades/mods that defiantly should be done when I have the engine out? does anyone know where I can find any guides on removing the engine and/or rebuilding the engine? thank you

NervoS · Yesterday, 08:46 PM

The best brand of each part is BMW. Or, OEM, but you need to know which OEM produced which part. I'd recommend to go to ECSTuning.com, they usually gives you multiple options, including OEM. You don't have to buy from ECSTuning, but they have one of the best sites with photos and stuff. You can buy from them too, it is one of the best place, along with FCPEuro, rmeuropean, autohausaz.

As to crank - once you have rods out you can assess the state of the rods journals, as well as you would be able to assess bearings. Most likely, crank is fine.

All the seals, all the gaskets, all the bearings - probably, a good idea to replace too.

pbonsalb · Today, 10:48 AM

What does a used N55 cost?

Yesterday, 06:37 PM	#1
okllee Registered 0 Rep 1 Posts Drives: f80 Join Date: Sep 2024 Location: Austria iTrader: (0)	Help with Rebuilding My N55 F32 I had a 2014 bmw 435 and i drove it though water and it was water damaged and written off. BMW told me it was likely bent rods as it had a bad compression test. It still runs just a rough idle. I bought it back from auction and am planning on rebuilding the engine. Im planning on replacing rods, all bearings, rod bolts, piston rings and maybe pistons. should I replace the crank? Is there anything else that should be replaced? what is the best brand for each of the parts? is there any upgrades/mods that defiantly should be done when I have the engine out? does anyone know where I can find any guides on removing the engine and/or rebuilding the engine? thank you
	Appreciate 0 Tweet Quote

Yesterday, 08:46 PM	#2
NervoS Enlisted Member 11 Rep 41 Posts Drives: G05,E39,E46,R53 Join Date: Nov 2022 Location: WA, USA iTrader: (0)	The best brand of each part is BMW. Or, OEM, but you need to know which OEM produced which part. I'd recommend to go to ECSTuning.com, they usually gives you multiple options, including OEM. You don't have to buy from ECSTuning, but they have one of the best sites with photos and stuff. You can buy from them too, it is one of the best place, along with FCPEuro, rmeuropean, autohausaz. As to crank - once you have rods out you can assess the state of the rods journals, as well as you would be able to assess bearings. Most likely, crank is fine. All the seals, all the gaskets, all the bearings - probably, a good idea to replace too.
	Appreciate 0 Quote

Today, 10:48 AM	#3
pbonsalb Lieutenant General 5630 Rep 11,102 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	What does a used N55 cost?
	Appreciate 0 Quote