old belts stretching

[Mr. ED]

I noticed this last winter on my yr4, and last weekend on my mx4: My belts are stretching. Both cars had not run for a while and got a good rework, setting the belt perfectly, no slack nor tension other than from their own weight. After a couple minutes running the belts are slack and never return to their old length.
It's very disappointing especially after all the work I've put in the mx4. Any ideas?

[Peakey]

Are they both M3 pitch? If you get me the tooth count I'll see if I can get you some new ones

[Mr. ED]

Yes,they are. When you say new, do you mean nos, or did you find a place that will cut custom width's?

[_timmy_]

Check this out, ebay item no. 182018308881 , if its any interest drop me a pm and we'll sort something out, it's been listed a few times now with no takers.
And for info' from the header card it seems to be 189 teeth.

Tim

[Peakey]

Yes,they are. When you say new, do you mean nos, or did you find a place that will cut custom width's?

I have a place that will do any widths but it's down to tooth count really but I'm sure in can help you out.

[Mr. ED]

189 teeth it is then.
And I'd rather get a new belt than nos as I blame age, not wear.