ST220 Rotational NSR Knock
2 posts • Page 1 of 1
ST220 Rotational NSR Knock
Hi All,
I appreciate this isn't a Fiesta related issue, but I imagine the cause is fairly generic to any car.
I have recently run through and changed discs and pads all round on the Mondeo as it had been stood for about 6 months and were rusted solid, in order to get a fresh MOT. I took her round the block a few times to test them out and all was well. I took her in for the MOT and there was slight play in the NSR wheel bearing so I replaced it with a new hub.
On the way to the MOT everything was fine, but coming back there was the odd knock noise from the NSR which I just associated this with the wheel bearing.
However after changing the wheel bearing things were fine for a few weeks then the noise has returned. It started by being pretty sporadic, but has since got worse and worse. It goes away under braking and when driving over 30mph. If I trail the brakes gently whilst moving along it also disappears.
The knock appears to be rotational and matches apparent wheel speed. There is nothing interfering with the spokes or tyre and I have re-tightened the brake caliper, carrier and wheel nuts.
I am going to be stripping the whole lot back this weekend, but I wanted to see if anyone had any suggestions of what may be the cause or things to look out for.
Cheers,
Simon
I appreciate this isn't a Fiesta related issue, but I imagine the cause is fairly generic to any car.
I have recently run through and changed discs and pads all round on the Mondeo as it had been stood for about 6 months and were rusted solid, in order to get a fresh MOT. I took her round the block a few times to test them out and all was well. I took her in for the MOT and there was slight play in the NSR wheel bearing so I replaced it with a new hub.
On the way to the MOT everything was fine, but coming back there was the odd knock noise from the NSR which I just associated this with the wheel bearing.
However after changing the wheel bearing things were fine for a few weeks then the noise has returned. It started by being pretty sporadic, but has since got worse and worse. It goes away under braking and when driving over 30mph. If I trail the brakes gently whilst moving along it also disappears.
The knock appears to be rotational and matches apparent wheel speed. There is nothing interfering with the spokes or tyre and I have re-tightened the brake caliper, carrier and wheel nuts.
I am going to be stripping the whole lot back this weekend, but I wanted to see if anyone had any suggestions of what may be the cause or things to look out for.
Cheers,
Simon
1991 Fiesta RS Turbo - Project Thread - 285.8bhp, 320ft/lbs - Sold to a good friend .
- Simon84uk
- Post Master
- Posts: 691
- Joined: Mon May 01, 2006 11:28 pm
- Location: Southampton
- Your car: Fiesta RS Turbo
Car: 1991 Ford Fiesta RS Turbo
Re: ST220 Rotational NSR Knock
im sure its something simple. caliper mountings,something loose..hope you sort it
- FRSJON
- Elite Post Master
- Posts: 4662
- Joined: Mon Oct 30, 2006 10:26 pm
- Location: ISLE OF WIGHT
- Your car: frozen white/carbon zt
2 posts • Page 1 of 1
Twitter
The second 20th Anniversary article, a dive into the history of how the site came about is available here: https://t.co/kbCfZ4sf0R
17:44, 4th December 2021 Twitter Web App
To celebrate https://t.co/wXVkvJipaS being 20 years old this year, I've written a series of articles detailing the… https://t.co/B0vE0Y3KvP
17:42, 4th December 2021 Twitter Web App
Follow fiestaturbo.com on Twitter:
http://twitter.com/fiestaturbo/
Facebook
New article! fiestaturbo.com is 20 years old this year and I'm writing a series delving into the history of it. …
Saturday, 4th December 2021 12:49
Some awesome Escorts from the Fair - FORD FAIR 2021: ESCORT EXHIBITION - …
Sunday, 31st October 2021 17:05
All the best Focuses from Ford Fair - FORD FAIR 2021: FOCUS PEEKING - Which was your …
Thursday, 7th October 2021 22:21
Become a fan:
http://www.facebook.com/fiestaturbo/
RSS Feeds
Subscribe to the RSS feed
What is RSS?
RSS is a technology that lets you use special applications or modern browsers to notify you you when a site is updated. You can then read the updated content in that application or your browser.
To subscribe to these RSS feeds you need to copy the links above. For instructions on how to add it to the feeds you keep track of, consult the documentation of your RSS reader.