Low rev rattle

HHancoB21 Feb 2008, 11:07

Hi guys I am new here and just got my car a week and one day ago!!!! I am like a 13 year old who got his first kiss from a porn star,he he! I love the car to bits and I barely had it for 3 days before I fitted a BOV and filter. But and a big BUT like those you find on J LO, since I bought the car there was a strange rattle between 2000 and 3000 rpms. It disappears as soon as the boost kicks in and then runs up smoothly through the rev range. I know it might be something small for other people but i'm a perfectionist and I want my car to run Smooooooth.

Plz guys let me know if you can help.

DDanielmoderator21 Feb 2008, 11:13

Oh no! 😮

what kind of rattle? I really hope for your sake its not bearing knock! that shows its ugly head between 2-3k rpm

Welcome to the forums 😀

rratadmin21 Feb 2008, 11:21

can you tell where it is coming from :?:

HHancoB21 Feb 2008, 11:21

No its not ping, It sounds like something is loose. The guy I bought the car from put a new motor in on 115 000km and the car is now on 186 000, The car is totaly stock besides my BOV an Filter...but it was there before I did the mods.

I know for a fact that it is not ping coz you would get brown smoke out the back. It sort of reminds me of my mom driving the VW kombi up a hill in a wrong gear...he he woman drivers...but the problem is that you get is in 2nd to 4th gear only in city driving.

HHancoB21 Feb 2008, 11:23

From the motor, high up sort of tappet cover or valve hight

GGary5721 Feb 2008, 11:24

I really hope for your sake its not bearing knock!

I know for a fact that it is not ping coz you would get brown smoke out the back

A ping would nessesarily cause brown smoke and deffinately not enough that you would see it. Where abouts on the motor is the noise coming from??

CCHAREL21 Feb 2008, 11:27

Welcome bro!
Its not to say, that there will be smoke if it is a knock, or ping....
Does the noise stay there if you keep the RPM constand at that Range?
Check the exaust, boost pipes, cables and anything that might be close to the body work, and make sure the dont toutch, and if they touch, that there is no play.
Just me 2c's!!!

CCHAREL21 Feb 2008, 11:30

O' sorry, something just came to me..........
Check your oil leavel, I know from experiance, that if the oil is just a bit low, it makes that noise, if the oil is full, maby you must try a thicker oil, as long as it is senthetic exc: EDGE, MAGNATECK.
Let me know if you still dont come right!

HHancoB21 Feb 2008, 11:54

Jip have checked everything nothing is close to touching the body. and yes if I keep it in that rev range it stays there.

DDanielmoderator21 Feb 2008, 12:00

Where you located? Maby one of us could come and have a listen

CCharlvdw21 Feb 2008, 12:03

Good idea 4 is better than 2 ears.

HHancoB21 Feb 2008, 12:04

In Bellville, Im a CT boy...

DDanielmoderator21 Feb 2008, 12:07

hmm bugger...

question, If you hold the rpm at say 2800-3k rpm and then release the accelerator, does the rattle get alittle louder?

HHancoB21 Feb 2008, 12:11

No it stays the same from 2000 to 3000 then I start hearing the turbo spooling up, leave the throttle->waste gate goes like a mad pigeon->rattle disappears

mmario_200sx21 Feb 2008, 12:12

hey riekert, anothe CT outjie,

Welcome dude!

Bring your car ova 2 my place or take it to Anton Slabbert, he wouldnt mind havin a listen. And he knows 200sx from top to bottom!

HHancoB21 Feb 2008, 12:16

The thing is, on my golf I had the lifters doing that untill the oil lubs the well then it goes away. But this stays there even when the car is hot. Maybe a oil change would do the trick. I dont know what type of oil the previous owner used.

Im studying for a mechanical engineer and I know ppl always say jy but you engineers think you can fix it all but hay sumtimes we have the brain to think it but maybe not the hands to do it...so maybe it is oil.

HHancoB21 Feb 2008, 12:19

Wick...Head my bru!!!! Nice to see some Capies here!!! Tell me kwik where is he? I was a golf nutter so I know all the Vdub spots but im new in the jap thing.

GGary5721 Feb 2008, 12:19

Where on the motor is the noise coming from??

HHancoB21 Feb 2008, 12:22

Sorry gary. Sounds like valves or lifters or cam. It is high up.

mmario_200sx21 Feb 2008, 12:28

hes ar la belle road, take the turn left into la belle from bellville voortrekker, then go left at the road at scania trucks then second road left again, APS Sevices, tel: 021 9489400. hes very busy, so he might seem a bit rude now and then! 😉

33 posts

Sign in to reply.