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TR2/3/3A HS6 Carburettors

Simmo

Jedi Hopeful
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I got a new set of HS6's for my 3A from Joe Curro. They work very well indeed.

The origional H6's had small drain vent tubes which turned via a small tube and went into the Air Cleaners.

I notice MGB put very long tubes to drain any fuel below the engine.

I cant even seem to find a vent on the HS6 but imagine it to be a small hole under the fuel intake pipe see pic.

My question is has anyone taken much notice of the potential to spew fuel out and manufactured vent pipes for these Carburettors?
 

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There is a version that has a fitting for a vent tube. I forget offhand what car it is from (Volvo?) but they do exist.

Modifying what you have, though, may be kind of tricky. If you look carefully at the fuel inlet, there is a sheet metal clip that covers a big gap in the casting. That gap is the bowl vent.

 
Thanks Randall. I guess that I should let sleeping dogs lay. Probably nothing to be concerned about anyway. Its just that the MG people went to so much trouble to provide great long drain tubes that started me thinking
 
Thanks Randall. I guess that I should let sleeping dogs lay. Probably nothing to be concerned about anyway. Its just that the MG people went to so much trouble to provide great long drain tubes that started me thinking

I'd not worry about it, hasn't been an issue on any of my cars with the same carbs.
 
I have a set of HS6's off of a Volvo running on my TR4 (I got them on the car when I bought it). I did have a stuck open float valve once. That was when I found the vent hole. I smelled the gasoline and went looking for it right away. You just need to keep aware of what is going on with the car.
Charley
 
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