[Healeys] SU carbs' vent holes.

[Bob Haskell]

Simon,

There are two methods used to vent the area above the piston: 
https://www.jcna.com/library/tech/tech0006.html

Cheers,

Bob Haskell
Austin Healey 3000 MkI registrar
http://www.ciahc.org/registry_3000mk1.php

On 1/27/19 6:49 PM, simon.lachlan at alexarevel.plus.com wrote:
> How can one tell if  an HD6 should have a vented cap ie a little hole in 
> the black plastic cap?
> 
> Mine have two holes in the caps, both filled. I suspect they should be 
> vented…..
> 
> Any ideas?
> 
> Thanks,
> 
> Simon
> 
> 
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