HIF44 Carb

[Mark"H"]

Anyone know whats the base setting for the mixture screw on a HIF44 carb, Is it all the way in and so many turns out???? Do you screw it in to weaken it or out.

My car has a major overfueling problem and I need to get it running a little better so I can drive it back to A&B next Saturday for them to take another look at the set up for me.

[Steve]

You screw out to weaken it. In to rich it. It is hard to say how many turns out. I would get a colourtune and set it with that if I was you.

[Deano]

as longs as its rich it wont do much damage better that than lean if it runs rich it should drive down ok

[David godfrey]

if you have the correct needle the jet should sit 2.5 mm (0.100 in) from the top when choke isnt applied.

Ive found theis always to be a good starting point then just a minor adjustment if really needed i will try and find the exact setting.

[David godfrey]

in the Rover workshop manual it says

Sealed adjustment type screw the nut down three complete turns (18 flats)

Non-sealed adjustment type, screw the nut down two complete turns(!2 flats)

im guessing the sealed type is a hiff 44

[Mark"H"]

Thanks guys for your input, it runs so rich at the moment that if I clean and dry the plugs, start it up, within a minute its so overfuelling that its misfireing badly and if I pull the plugs straight out they are black and very wet.

Does anybody have a spare HIF44 I could borrow for a few days???

[David godfrey]

whats your engine set up?
What needle you got in the hiff?