30 replies to this topic

[MINI 1]

hi , i have just bought some twin hs2 carbs and am abit stuck into where the fuel is suppose to go as both float chambers have just a oulet and no inlet?

aslo why when you have a single carb , on the inlet manifold their is water holes each end but on the twin manifold their isent why?

ash

this is picture of mine below

Edited by MINI 1, 04 January 2008 - 04:27 PM.

[Bungle]

you use a T piece and conect both float bowls together

if your not sure whats the inlet just open up the float bowl and look for the ball valve inside thats the inlet

[MINI 1]

BUMP

[dklawson]

Look at your picture again. On HS2 carbs, the brass tubes you see on top of the float bowls are the input ports, not outputs. There are small overflow holes drilled in the lids just below the brass tubes. The only other outlet is the jet tube itself at the bottom of the bowls.

As for the connections between the carbs, the original Cooper and -S setup used a long metal tube with a "T" near the front carb. Short lengths of tubing connected the float bowl lids to this long tube/"T".

I don't understand your question about the water holes.

[Bungle]

for what ever reason twin carbs dont have a heated manifold

[MINI 1]

for what ever reason twin carbs dont have a heated manifold

ok , what i mean is that am converting single carb to a twin ( on the single carb manifold it has a water inlet and a outlet flow at opposite ends). I no that the twin doesent use it but what do i do with the existing rubber pipe work NOW?

ash

[MINI 1]

Look at your picture again. On HS2 carbs, the brass tubes you see on top of the float bowls are the input ports, not outputs. There are small overflow holes drilled in the lids just below the brass tubes. The only other outlet is the jet tube itself at the bottom of the bowls.

As for the connections between the carbs, the original Cooper and -S setup used a long metal tube with a "T" near the front carb. Short lengths of tubing connected the float bowl lids to this long tube/"T".

I don't understand your question about the water holes.

ok , i have look for these holes and they cannot be found. there is just a brass tab

the only other tubes are the ones facing each just below the damper pots ( what are thease)? see photo^^^^^^^^


ash

[Bungle]

they are where you connect the engine breathers

[minimender]

Your floatbowls should have different tops like these, feed one then take off to the other but as has been said you can put a tee piece in.

The overflows are pinholes under the brass tabs.


 Mini_1.jpg   195.29K   15 downloads

[Ethel]

The vents are there put some petrol in the float bowl 'n turn it upside down you'll soon find it.

Just connect the two water hoses together.

[MINI 1]

Your floatbowls should have different tops like these, feed one then take off to the other but as has been said you can put a tee piece in.

The overflows are pinholes under the brass tabs.


 Mini_1.jpg   195.29K   15 downloads

my floatbolws are original ones so dont have outlet ones just have inlet ones, so we will have to use a t - pipe.

ash

[blue redtop]

hi as said befor u neet a t piece.heres a pic.

the t piece in where my fingers are and that connects to the fuel pump.

where the pipes connect on the float bowl there is a tiny pin hole just under where the petrol pipe go's.

if you dont mind me asking how much did you pay for those carbs?.
cheers

[MINI 1]

ye , i payed 70 pounds they need little bits adding but i think its a bargin

thanks for adding the pics for me

also theirs two brass pipes which pretude each other from just below the damper pots what are they for?


ash

[blue redtop]

got any pics?

[blue redtop]

if there the pipes coning out between the carbs in the top picture there for the crank breather,you will need a y piece for them to.
or block them off so there air tight and fit a crank breather filter.but if you do this u must keep up to date with oil changes.
cheers