Sounds like an air raid siren!

Sounds like an air raid siren! was created by Pusb

Posted 1 year 9 months ago #201109
My MGF has started making a very strange sound. I'm hoping someone on here recognises it! Its intermittent, but when its there its very loud. It does change pitch with RPM, but not in a direct correlation (if that makes sense?)Being in gear or out of gear makes no difference, nor does having the clutch engaged or disengaged. Speed makes no difference. Any ideas what it could be? Its louder on the passenger side. I was thinking possibly the fuel pump?


Last Edit:1 year 9 months ago by Pusb
Last edit: 1 year 9 months ago by Pusb.

Please Log in or Create an account to join the conversation.

Replied by Pusb on topic Sounds like an air raid siren!

Posted 1 year 9 months ago #201110
Last Edit:1 year 9 months ago by Pusb
Last edit: 1 year 9 months ago by Pusb.
The following user(s) said Thank You: Leigh Ping, sworkscooper

Please Log in or Create an account to join the conversation.

Replied by neilpinleeds on topic Sounds like an air raid siren!

Posted 1 year 9 months ago #201111
Auxiliary belt slipping or in contact with something. Cambelt in contact with something. Cambelt tensioner bearing shot. Just suggestions. Is it a VVC?

Please Log in or Create an account to join the conversation.

Replied by Pusb on topic Sounds like an air raid siren!

Posted 1 year 9 months ago #201112

Auxiliary belt slipping or in contact with something. Cambelt in contact with something. Cambelt tensioner bearing shot. Just suggestions. Is it a VVC?

Non VVC engine.

Cambelt and auxiliary belts were changed in August
by Pusb

Please Log in or Create an account to join the conversation.

Replied by Airportable on topic Sounds like an air raid siren!

Posted 1 year 9 months ago #201113
Alternator belt slipping?

Please Log in or Create an account to join the conversation.

Replied by David Aiketgate on topic Sounds like an air raid siren!

Posted 1 year 9 months ago #201120
Sounds more like a bearing than a belt.
Complete guess, but alternator bearing? Belt on too tight?
Try putting different loads on the alternator e.g. headlamps on. Does the sound change with load?

Try loosening or taking the alternator belt off.

David
:shrug:

Please Log in or Create an account to join the conversation.

Replied by deepfat on topic Sounds like an air raid siren!

Posted 1 year 2 months ago #203965
Is it possibly your passenger screaming in fear!
by deepfat

Please Log in or Create an account to join the conversation.

Replied by Notanumber on topic Sounds like an air raid siren!

Posted 1 year 2 months ago #203968
Are you sure it is more on the passenger than the driver's side as my first thought is the cambelt cover rubbing against the pulleys. The plastic cover is far from rigid hence some have retro fitted an extra bracket or sometimes a spacer to keep it away from the cam pullleys

2003 TF 135 sunstorm

Please Log in or Create an account to join the conversation.

Replied by R40MGF on topic Sounds like an air raid siren!

Posted 1 year 2 months ago #203974
I would go with a over tensioned aux belt resulting in bearing failure.
by R40MGF

Please Log in or Create an account to join the conversation.

Time to create page: 0.726 seconds