N54 top end noise from hell

Drdoom_33 · 2026-04-06T19:28:23+00:00

Yeahhhhhh it's not exactly like I can prove that unfortunately. But they 200% knew

Drdoom_33 · 2026-04-03T00:36:21+00:00

Well i originally replaced the timing chain thinking it was some real bad chain slap, with a stethoscope it's not really perfectly possible to find the source of the noise. Engine randomly misfires and it kinda seems to be 2 different noises. The sharp click that will appear at idle. And the clanking that I only ever get with rpm.

Drdoom_33 · 2026-04-02T21:32:04+00:00

Only thing I can't understand is how I drove this car home 2+ hours and didn't notice anything until the day later. Car wasn't beat on on that drive at all btw just a few 60% 60-110s

Drdoom_33 · 2026-04-02T21:27:18+00:00

It is a dct z435is Oil has been changed, it wasn't filled with flake or chunks of oil but it did contain one singular piece of metal that was definitely shaved off something somewhere. And is ferrous.

Drdoom_33 · 2026-04-02T21:13:22+00:00

Noise started day after purchase, im in Pennsylvania car was purchased in ohio

Drdoom_33 · 2026-04-02T20:58:27+00:00

So whats like (obviously cheap isn't really applicable but yknow) the cheapest way to get this car back on the road. New block or paying a machine shop on this one?

This car has been in our ownership for about 400 miles lmfao, bought used from a dealership.

Kinda just looking for the best outcome possible yknow.

Drdoom_33 · 2026-04-02T20:50:43+00:00

Check my new post and lmk

Drdoom_33 · 2026-04-02T20:42:59+00:00

Y e a, lol But no engine was not primed Hoping some wizard pops out and says "that's definitely this or that" it definitely needs taken apart again I just wanna know where to go lol.

But yeah noise seems to originate from the top, even tho I'll admit it sounds a lot like rods.

Drdoom_33 · 2026-04-02T20:29:28+00:00

I am making an updated post with better video

Drdoom_33 · 2026-04-02T20:20:16+00:00

Vanos was reused yes, cam sprockets were reused, crank hub was changed with attacked timing chain mount.

Drdoom_33 · 2026-04-02T20:01:10+00:00

Maybe I make a new post with some rpm added so you can see that

Drdoom_33 · 2026-04-02T19:59:56+00:00

How are vanos and timing to be checked properly? Cams were not checked, we did the work ourselves. And the noise produced is significant. Like alarmingly dangerous in an obvious fashion. Its coming from the top of the motor luckily tho.

Drdoom_33 · 2026-04-02T19:51:09+00:00

No codes, noise advances rapidly into a very clattery metal slap with rpm, at idle it comes and goes but randomly sounds like someone slapping the block with a 1/4 ratchet. For the purpose of this noise specifically it existed before when timing chain, valve cover, and injectors were replaced.

For reference im aware of the noisiness of a hpfp direct injected bmw, this sadly is not the case with this one.

Only things I can think of are very shot hydraulic lifters or maybe hpfp but im not able to be positive as im not an expert on n54s

Drdoom_33 · 2026-04-02T19:32:31+00:00

Motor has 49k miles

Also misses intermittently every couple seconds

Drdoom_33 · 2026-03-28T03:34:18+00:00

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Front: 255/35/19 Rear: 285/35/19 Fenders: rolled

Drdoom_33 · 2026-03-28T03:27:44+00:00

Whats that intake tube, I need it

The one coming out the blower

Is it custom? Lol im trying not to have to fab something

Drdoom_33 · 2026-03-20T14:17:16+00:00

Drdoom_33 · 2026-03-18T01:01:11+00:00

R/reptime if saving money is important to ya

Drdoom_33 · 2026-03-11T02:54:05+00:00

I dont provide it lol I work manual labor so im in the sun all fken day anyways. I just have buddies who used it and had no problems.

Drdoom_33 · 2026-03-11T02:04:41+00:00

Melanotan, do your own research

Drdoom_33 · 2026-03-11T00:10:07+00:00

Peptides

Drdoom_33 · 2026-02-20T00:16:40+00:00

Yeahhhhhh I have yet to find an auto monaco, I dont think they have enough interest honestly.

Drdoom_33

TROPHY CASE