Webers and solid engine mounts

[1QuickS]

I've searched for previous threads but haven't found a good answer to these:

Do solid engine mounts lead to flooding the float bowls?

Has anyone used soft mounting provisions to isolate the carbs from vibrations?

I know what PMO recommends regarding solid mounts for engines.

[Mr9146]

I've searched for previous threads but haven't found a good answer to these:

Do solid engine mounts lead to flooding the float bowls?

Has anyone used soft mounting provisions to isolate the carbs from vibrations?

I know what PMO recommends regarding solid mounts for engines.

You mean rubber mounts between the manifolds and the carburetor bodies?

[1QuickS]

Do solid engine/transmission mounts with the chassis cause issues other than fuel frothing in the bowl with resultant fuel delivery variations?

Has anyone had experience mitigating the effects of solid engine/transmission mounts by using soft gaskets (rubber/Viton) between the carb and the top of the intake manifold?

[RSTarga]

I'd be more worried about the chassis developing cracks with the solid mounts. Unless this is for a race car that is constantly checked. Even so vibration is really damaging, i've seen transmission housings crack. You need a little give somewhere. Apart from that I can't imagine it affecting the carbs.

[edmayo]

Paul, in the "old" days of racing a 356 in E/P, since we did use a solid transmission hoop mount (to reduce lateral trans movement) we used to use a "thackery" washer to allow the carb to float slightly and hopefully to reduce the frothing you mention. This washer was in essence a miniature coil spring installed between the nut and carb base (longer studs required).

[1QuickS]

I know these short coil springs Ed but now I know their name. :-) I guess you used a rubber gasket to maintain vacuum seal when carbs were "floating".

I have a customer with oil dilution by fuel and am searching for possible causes; the carbs look good but there isn't a pressure regulator installed and I doubt float levels were ever set. Engine is in a 550 replica with solid mounts.