01-13-2021, 09:24 AM | #1 |
New Member
6
Rep 12
Posts |
BMW F30 318d n47t Engine noise check
Hi All
Just wanted to get your opinions on the sound of my n47t motor. Does it sound healthy or like it has a wearing timing chain system? it was a cold start and i was holding down the air filter housing for the first half of the video. https://youtu.be/pBvaxjm6L1M Apologies for the stretched video. Last edited by Jaypit; 01-13-2021 at 12:16 PM.. |
01-13-2021, 10:15 PM | #2 | |
First Lieutenant
336
Rep 368
Posts |
Quote:
Edit: Here is mine from a few months ago. |
|
Appreciate
0
|
01-14-2021, 02:52 AM | #3 |
New Member
6
Rep 12
Posts |
Sounds nice! was that on a cold start? or did you get a recent oil change because your motor sounds much more subtle than mine. Wondering if mine is a healthy sound (minus the chirp, i think thats beacause there was some water left in the engine bay which got to the pulleys)
|
Appreciate
0
|
01-14-2021, 08:48 AM | #4 |
First Lieutenant
336
Rep 368
Posts |
I think mine was warmed up at that time, but it sounds basically the same cold or hot. It was between 40K-50K miles at a time, the engine is about 3 years old. With the only exception if it is really cold (close to or below freezing), the engine idles about 100rpm higher for the first few minutes, which is also a normal occurrence. I don't hear any unusual sounds from yours, to be honest. Sounds like a diesel. LOL. The chirp certainly sounds like it may be coming from a pulley, would be worth fixing for sure.
|
Appreciate
0
|
01-14-2021, 09:07 AM | #5 |
Dr Drei
71
Rep 245
Posts |
Both sound normal to me, and healthy. The chirping on the first one is very slight, and if the engine wasn't warmed up first, it could be anything from moisture on the belt to a cold, slightly underlubed pulley. I would check it again when it's fully up to temp, even have someone gently rev it up and see if the chirp increases in frequency.
You could try using one of those magnetic wands that's used to grab fallen bolts and touch each individual pulley (including the alternator) to see if the chirping can be isolated. Bottom line though is that, to me, it doesn't sound serious in any way.
__________________
GLK 250 // 126xxx miles // 36 MPG // Mobil1 ESP 5w30
|
Appreciate
0
|
01-14-2021, 03:24 PM | #6 | |
New Member
6
Rep 12
Posts |
Quote:
|
|
Appreciate
0
|
01-14-2021, 03:26 PM | #7 | |
New Member
6
Rep 12
Posts |
Quote:
|
|
Appreciate
0
|
01-15-2021, 05:13 PM | #8 | |
New Member
4
Rep 12
Posts |
Quote:
Please take a look at my engine sound, im concerned about that ticking noise from the right side of the engine at start. |
|
Appreciate
0
|
01-17-2021, 12:53 AM | #9 |
First Lieutenant
336
Rep 368
Posts |
Boris31 I can reproduce the same ticking sound on the right side if I activate "measure engine oil" function. This results in car raising RPM from 780 at idle to exactly 1000rpm. Then I can hear the same tick until measurement is done and RPM drop back to idle. I will have to check mine on cold engine and will get back to you.
|
Appreciate
0
|
01-17-2021, 10:13 AM | #10 | |
New Member
4
Rep 12
Posts |
Quote:
|
|
Appreciate
0
|
01-18-2021, 10:11 AM | #11 | ||
First Lieutenant
336
Rep 368
Posts |
Quote:
|
||
Appreciate
0
|
01-21-2021, 11:16 PM | #12 |
First Lieutenant
336
Rep 368
Posts |
Here is my last video I promised, during warmed up engine and engine oil check procedure. You can hear the engine starts to sound like yours at 1000rpm during oil check procedure.
|
Appreciate
0
|
Post Reply |
Bookmarks |
Tags |
318d, 320d, 328d, chain, n47, noise, timing |
|
|