Cambelt Only Done 24K Since Change But 5 Years

[davey205 7 1 Cars]

As title car has been sorn for last 2 years, cambelt was replaced at 72k now on 96k, probably advisable to get it done right?

[lagonda 41]

Unlikely to have been much, if any, deterioration in that time. Replaced the one I fitted in 2007 last year, and there were no cracks, indeed it looked as if it would have been fit for a lot more service, despite 75,000 odd miles use.

 

Assume sensible storage....if very damp, or warm, (unlikely one would imagine), then I'd be cautious, otherwise you can easily remove cambelt cover and check for perishing/cracks etc.

[Tom Fenton 1,525]

The one on my laser had only done 3000 miles but was 7 years old. I changed it. Belt £15. Head rebuild 8 new valves and guides gasket set etc £250-odd....

[jackherer 543]

I've just replaced a belt on an engine that has never been installed in a car or run at all, it had just been turned over by hand but after at least 6 or 7 years I wasn't prepared to risk it.

[lagonda 41]

That's the problem....the part is inexpensive, but the damage resulting from it breaking is potentially catastrophic. It's a no brainer therefore to replace it....but it's not the easiest job to do yourself.....that's the rub!

[Daviewonder 533 3 Cars]

They have a 5 year shelf life. I would replace it.

[Miles 331 1 Cars]

But how do you know how old the box'd ones are....

[jackherer 543]

I have thought of that before, you'd think they would put a manufacture date on them like they do with crappy american beer these days.

[Daviewonder 533 3 Cars]

But how do you know how old the box'd ones are....

 

 

Stock movement report or something similar I would imagine?

[welshpug 1,622]

Boxes are usually dated

[jackherer 543]

I've got some Dayco belts and kits here and they don't have dates and I don't remember ever seeing any.

[Miles 331 1 Cars]

Never seen any dates, 8v belts I would say are prime for old stock as these days I cannot see them selling in huge numbers

[acox99 71 1 Cars]

As long as they are kept in the box and in a dry warm enviroment like a store room they aren't going to degrade. It's the use, heat cycles and uv that harm them. Eventually they will be of no use but 10 years or more on a shelf I imagine would be the max. A visual inspection and what they feel like is the best way to determine if you want to use it or not.

[jackherer 543]

I'm not sure I agree, would you use tyres that had been in a controlled environment for ten years? AFAIK it is oxygen/ozone that ages rubber.

[Tom Fenton 1,525]

I thought it was UV. Certainly for tyres the advice I've always been given is to store somewhere dry and dark.

[acox99 71 1 Cars]

As Tom says store them in the dry and dark and you would be surprised how long they store for without going hard.

[jackherer 543]

I thought it was UV.

 

UV converts atmospheric oxygen into ozone which is what ages it, not the UV directly.

[acox99 71 1 Cars]

Iv learnt something today. Didn't realise that.

[lagonda 41]

Ran my V12 on a pre-war....yes 1939 ....tyre for some time back in the early 1980s. It was pretty hard, but I would have done up to 95mph with it...no probs. There's also a guy with a 1926 car that is still running on the tyres fitted when it was new! I believe he rarely uses the car (it would be a crime to, obviously incredibly low mileage) and doubt he goes at any great speed though. Perhaps pre war rubber was better quality. Recently bought a new old stock fan belt for the V12 that can't date from any later the 1950s, and it is still supple and will be used.