Follow on questions from HD6 carburetor rebuild

[fishyboy]

Hi All,
Having rebuilt my HD6 carbs and fitted them back on my Healey a couple of things have come to light.
Firstly, my carb set up utlilises two black plastic spacers on each carb (one between the manifold and heat shield and one between the heat shield and carb body). Unfortunately I only noticed this after refitting the carbs while looking at some photos in one of my books. Should I take everything of a remove one of the spacers or just leave well alone (I assume a PO had put two spacers on for good reason).

Secondly, I notice that after I switch off the engine after a run I can see a few drips of fuel/air mixture dripping from the rear underside end of the inlet manifold onto the hot exhaust manifold, where they turn to steam. The drips stop after about 4-6 drips. Should I be worried? What does the underside of the manifold look like. With my fingers I can feel something like screws or bolts.

Any advice?
Thanks
Phil

 

[Keoke]

Yes there are copper drain tubes that attach to the intake manifold at the front and rear and direct the fuel away from the hot exhaust manifold.below.





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[Bob_Spidell]

Not sure what car you have, but if it has the 'log' style intake manifold there are drain holes on each end of the manifold. These holes should have a length of small ID copper pipe fitted to them to route unburned fuel past the manifold through the heat shield and to the ground. These need to be fitted--allowing petrol to drip on a hot manifold is a recipe for way too much excitement.

 

[Patrick67BJ8]

Not sure what car you have, but if it has the 'log' style intake manifold there are drain holes on each end of the manifold. These holes should have a length of small ID copper pipe fitted to them to route unburned fuel past the manifold through the heat shield and to the ground. These need to be fitted--allowing petrol to drip on a hot manifold is a recipe for way too much excitement.

Here's pics of the drain lines from my BJ8. You can put a rubber grommet on the two small straps that hold them close to the side of the engine(bottom area), to get rid of the tinny type of noise that they make when vibrating in the strap holes.

 

[fishyboy]

Thanks. I shall try to find some drain tubes.
Should I take the carbs off and remove one of the spacers?

 

[andrea]

Better if you maintain all TWO spacers this car can have serious problems of fuel vapors spacers function are the insulation from the intake
Here you can find some photos of the carbs pipes drain
Patrick inlet drain pipe are correct
https://picasaweb.google.com/lh/photo/RVCRjPoqfzfhdBkY20ABBtMTjNZETYmyPJy0liipFm0?feat=directlink
https://picasaweb.google.com/112770...ECARBURATORI?noredirect=1#5476707139836297490