Weber PMO Manifold Crack

[urseppos]

So I just noticed this crack as I was cleaning around the carbs and engine bay. I have not noticed any fuel leaking but should I not drive her until it is either fixed or a new manifold ordered ?

[zedsn]

Looks like someone used the wrong fitting. Does it leak? Looks like the fitting is for power brake booster to me. If everything is sealed properly and no leaks I would just keep an eye on it and run it as is. My 2 cents.

[Steve@Rennsport]

That can create a vacuum leak and thats damned serious.

I would either have it welded, or perhaps use a dab of JB Weld.

Naturally, replacing the manifold is a good option too, however I would get another fitting so you don't run the risk of having this recur.