Hi
i have a 1.4 with usual dodgy running issues it idles eratically and seems to over rev and sometimes overruns.
I noticed when i took the air filter cover off that only one chamber on the carb has a flap, it looks as if there should be a flap in the other chamber. Am i right in thinking there should be a flap in each chamber? Could this be the cause of some of my running probs?
340 1.4 carb flap
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volvodspec
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Re: 340 1.4 carb flap
early carbs (weber 83) had a twin carb flap, it's the choke actually.
later on, they realised that a choke valve on the 2nd barrel is a bit of dead weight, since normal people don't floor it with a cold engine, the 2nd valve got eliminated. the rod that holds the flaps hasn't changed.
your running problems seem like a dead floaterchamber gasket.
you could still try if the 5 bolts of the floaterchamber cover run loose by removing the air filter housing + gasket and tighten them.
later on, they realised that a choke valve on the 2nd barrel is a bit of dead weight, since normal people don't floor it with a cold engine, the 2nd valve got eliminated. the rod that holds the flaps hasn't changed.
your running problems seem like a dead floaterchamber gasket.
you could still try if the 5 bolts of the floaterchamber cover run loose by removing the air filter housing + gasket and tighten them.