Technical Webber carb pump

[Bernardthefox]

hi all,, ive got a perished accelerator diaphragm ,its a webber 34 datr ,wondered if anyone knows if its a 22mm or a 25mm as per pics,,thanks in advance

 

[bugsymike]

I have fitted hundreds of those in the past, never knew different sizes.
They look similar to the ones on 70s Lada 1200/1500s etc. Also many Fords of that era.
I see many suppliers of them on eBay, why not message them for measurements or ask them if correct for your model of carb, if they say yes and it doesn't fit, eBay will make them do a free refund.