Knocking/pinging/tapping sound when engine is running
#61
The following 3 users liked this post by baxtor:
#63
In my case (with apparently two dropped valves) the car surprisingly was quite springy, though obviously wounded. The most noticeable sign was fairly strong cluttering sound. I like the description somebody provided earlier: a noise similar to a large sewing machine might produce
Last edited by v1rok; 02-26-2017 at 01:11 AM.
#64
My 1992 XJR-S has developed a tapping noise from 6B, and I fear the worst. It was intermittent and has become more persistent. Initially it did it only under acceleration and not at idle or steady speeds but it seems to be getting a bit worse. Odd thing is that if I pull the plug lead on 6B the noise stops.
I'm hoping it's an exhaust leak around the plug or something like that, and have bought replacement plugs. THe noise very much seems to be coming from inside the V rather than the exhaust manifold...
Video:
https://www.youtube.com/watch?v=kWIz...ature=youtu.be
It really does sound more exhaust-y to me.
I'm hoping it's an exhaust leak around the plug or something like that, and have bought replacement plugs. THe noise very much seems to be coming from inside the V rather than the exhaust manifold...
Video:
https://www.youtube.com/watch?v=kWIz...ature=youtu.be
It really does sound more exhaust-y to me.
Last edited by davidedney123; 03-07-2017 at 05:40 AM.
#66
#67
The following users liked this post:
Jonathan-W (03-08-2017)
#68
I don't see how any exhaust leak jibes with pulling the 6B lead silencing the noise. Unless the exhaust manifold gasket has blown out on one cylinder.
Last edited by JigJag; 03-07-2017 at 02:49 PM.
#69