Hi everyone,

I'm sorry if this maybe a stupid question, but I'm quite new to kit cars and carbs.

I'm actually doing some maintenance on my 2B and I ordered the service kit for the Weber 38 DGAS, everything seems to be ok, but they gave me a diaphragm to change on the power valve and I'm a bit stuck, I don't know how to replace it, we tried about everything but the thing seems to be completely stuck as a whole thing.

I already found the entire replacement and it's on the way, but I'm just curious if there was a way or they simply gave me the wrong replacement part.

 

Thank you

Good question - I've only ever replaced them as a complete item but I'm guessing they must come apart somehow.

Who did you buy the service kit from - can they help ?

I have replaced one but it had a screw as opposed to riveted in center plate.

I've tried to ask where I bought it from but unfortunately they told me that they don't know how, I've searched but found no evidence.

I found  the Weber manual but, even in there, they just show how to replace the entire piece and not how to change the diaphragm. 

 

Curiosity got the better of me, I've got a carb. in the garage so I had to pull it apart yesterday.  I can't see any way of removing the diaphragm without wrecking it so I suspect that on newer carbs (this century?) you have to swap the whole item.

Thank you Foz! 

At least i know that i didn't waste money ordering and waiting for the entire part.

sending you this have a look but think yours is jammed in anyway not costing you anything to have a look 

 

Hi Daveo,

yes mine is jammed, but thank you for this video, really interesting and usefull, didn't found it in my research and is a precious source of information

Hello,

I'm happy to report that the part is arrived, and after changing it and all the gasket, and cleaning the carburettor, my 2B is now a completely different beast.  Unfortunately it will rain a bit this weekend but not sure if this is enough to try driving it a bit around. Thank you for the support

I have found that weather forecasts are nowhere near as reliable as my car - take the car out of the garage and it rains, put it away and the sun shines 🤣