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Weber carb issue

PostPosted: Tue Mar 21, 2023 9:23 am
by MartinH
I have had the engine out of my car for a gearbox change and am in the final stages of bolting on the ancillaries. I picked up the carbs last night to give them a wee clean and noticed the plate, shown below in the diagram between the 2 throats of one of the carbs, was hanging off with the top screw missing and the other finger tight.

The plate is listed in exploded views as the "cap for pump opening". Does this mean accelerator pump? I note some of these plates have a central hole, mine does not. Is this important?

The parts seem to be availble to order from weber distributors so I should be able to put it back together OK.

Martin

Re: Weber carb issue

PostPosted: Tue Mar 21, 2023 9:58 am
by 2cams70
It's not that important whether that plate has a hole in it. Suggest you don't wee on your carburettors to clean them though. It might cause serious corrosion.

Re: Weber carb issue

PostPosted: Tue Mar 21, 2023 12:21 pm
by Craven
Yes, accelerator pump, the hole in this plate is considered a helpful addition when dealing with a leak of fuel from this area, lots of discussions as to why on this site but useful mod on all 40’s.

Re: Weber carb issue

PostPosted: Wed Mar 22, 2023 6:05 am
by alan.barker
Martin,
You need the hole in to prevent a wee dribble when you stop the Engine.
All new plates i see have this hole/modification.
Lots of posts about this.
Alan