Noise on startup

[cockneytvr]

Hi all,

When I start my Chim, just before it fires there is a fairly loud squeek like noise. Sometimes it's louder than others. I had a 12k service about a month ago and the boys at Offord never mentioned it, but I am just wondering if it's something to be concerned about?
Any ideas what this could be?

Cheers

[Nuggs]

Could it be the fan belt slipping a bit?

[hugerr]

cockneytvr said:

just before it fires there is a fairly loud squeek like noise.

Fan belt slipping?

hugh

[Mad Mitch]

It the noise is just before it fires its not a belt noise.... Sound more in keeping with a starter bendix not returning fast enough.

[tvrbob]

I think I know the sound you refer to, I have something similar. On mine it certainly is not the fan belt it's a very short lived metal binding noise. Nothing serious just dry surfaces on some external part of the engine. It's so short lived it would be very difficult to locate.

[leadfootlydon]

Mine has the opposite problem.

Quiet on startup and then starts to squeek a bit when warm and idling or driving over lumpy roads. Very hard to tell where the hell the noise is coming from and especially embarassing when waiting at the lights.

[cockneytvr]

Yeah, I think tvrbob's got the same problem and as you say, trying to locate is not gonna be an easy job!! Long as it's nothing to worry about it's not a problem

[Nuggs]

Mad Mitch said:

It the noise is just before it fires its not a belt noise.... Sound more in keeping with a starter bendix not returning fast enough.

Oh yeah - I'll read the post properly next time before replying!

[Czernek]

Two things to check:
1: The bearing in the tensioner on the "fan" belt, actually the belt that drives all the ancillary equipment. I had this go squeaky on me.
2: The engine oil level. If it is low the hydraulic valve gear can squeak at startup.

[Big Brin]

I have the same! Sounds like a squeek made when letting air out of a balooon. Lats fro 0.5 to 1 second. I guess at an airlock in my power steering pump......however I stand to be corrected. Funnily it came back from a service with the noise. I believe it is more annoying than worrying.

Rgds, Brin