Mystery engine rattling noise?
#1
Mystery engine rattling noise?
Can you help me identify a mysterious rattling noise coming from the engine area of my car?
Rattling noise shows up when revs above about 2k.
Very 'thin?' sounding, pitch doesn't change with rpm.
I recorded a video to show the noise:
I noticed this rattling noise a while ago and have been unable to figure out the source.
It sounded a bit like the noise was coming from around the timing belty area, so I removed the cam cover, timing belt covers and harmonic balancer to try and see if something was loose in there (didn't find anything). I didn't take off the big main bold on the crank (21mm one) tocheck the woodruff key, so I don't know about that. (it is a 99, so the short nose problem is less likely, right?)
I've looked into what the sound of rod knock, detonation, TOB, etc and it doesnt quite sound the same.
I am hoping somebody here can help point me in the right direction.
The car runs great, other than the noise.
Rattling noise shows up when revs above about 2k.
Very 'thin?' sounding, pitch doesn't change with rpm.
I recorded a video to show the noise:
I noticed this rattling noise a while ago and have been unable to figure out the source.
It sounded a bit like the noise was coming from around the timing belty area, so I removed the cam cover, timing belt covers and harmonic balancer to try and see if something was loose in there (didn't find anything). I didn't take off the big main bold on the crank (21mm one) tocheck the woodruff key, so I don't know about that. (it is a 99, so the short nose problem is less likely, right?)
I've looked into what the sound of rod knock, detonation, TOB, etc and it doesnt quite sound the same.
I am hoping somebody here can help point me in the right direction.
The car runs great, other than the noise.
Last edited by bjorno; 07-09-2017 at 05:45 PM.