21 replies to this topic

[E-Tizzle]

Model: city e
Year: 1990

hi
im pretty sure ive got a HIF44 carb, although i looked in the haynes manual and it says its not fitted to a 1990.

but anyway.

i think that its running a bit to rich, i start it using the choke but within a couple of seconds it doesnt really need it.

i looked how to change the mixture and all i can find it to check using the piston lifting pin, how it doesnt have a picture of what it looks like.

can someone please tell me how to adjust it, or at least another post with the instructions in it (i did look but couldnt find anything)

thanks a lot

heres a picture of my carb

[turbominicooper]

take the dash pot off and wind the mixture screw in till the jet is level (you will see what i mean as it happens).

put the dashpot on, start the car and wind the screw outwards until the revs start rising then try it there (effectively you could wind it in abit more to get a feel for the sound of the revs rising).

Should be sound - sorry if this isnt descriptive enough for you

[E-Tizzle]

thanks for quick answer

if i take the dashpot off, will all the oil come out?

and till the jet is level with what? oh do you mean its like a see saw and as i do the screw it straightens up

EDIT

i took the dashpot off and the only screw i could find it the one at the top. but it was level so i didnt do anything to it.



there was this screw, what does that do, does it adjust the mixture?

Edited by E-Tizzle, 22 June 2010 - 07:07 PM.

[turbominicooper]

im the worst for explaining things but when you take the dashpot off (3 screws, oil wont fall out), where the needle goes into raises up and down (effecting how much fuel goes in), if you get it level then thats a good starting point and you can just wind out until the revs start picking up, if no difference wind in till when they just about drop - this is where the mixtures at balancing point, u can even lean or richen from this point. just have a bash you will get it after a while of tinkering.

[E-Tizzle]

what do you mean wind out and wind in?? what am i winding? (obviouosly apart from people up)

then how do i lean or richen it up, using that screw in the second picture?

[turbominicooper]

theres a screw at the back left of the carb near the fuel in, as you turn it inwards (clockwise) it will richen the mixture (more fuel), as you unwind it (anti clockwise) it will lean it out (more air).

if you open the dashpot there the jet in the center, when you lean/richen the needle thios jet raises and lowers.
there is a central point that is a good starting point (this does not mean the mixture is balanced).
from here you can either richen it or lean it out.

I personally wind mine in clockwise quite a bit, get it started and wind it anticlockwise till i hear the revs pick up, this is the best method ive found. then adjust the idle screw (top of carb).

[turbominicooper]

this is the jet im on about, the center part of it aises up and down - thought that might help

[E-Tizzle]

so that brassy bit in the centre of the picture is suppose to be level with the silvery bit.
where it sort of is, its very slightly lowered down so its a bit rich? so i need to level it up a bit and then run the engine and just tweek it slightly. do i use the choke while doing this because if its cold it might just cut out.

thanks

[turbominicooper]

i would suggest just winding it in a bit and working out using your ears for when the revs pick up.,

start the car and get it warm so it idles nicely then increase the idle speed a bit and start do a few turns anit clockwise.

that point there is just a startin point every engine will be tweaked differently etc.

[L400RAS]

I would suggest a HIF 38, as the current HIF 44 would have the wrong profile needle (probably of a 1275 Cooper) so will be over-fuelling throughout the rev-range. But to confirm, please state the code reference on the carb tag - near the dashpot seen in photo 1

Edited by L400RAS, 22 June 2010 - 08:01 PM.

[AndyMiniMad.]

Hello. First warm up the car. now turn the screw in your third picture to adjust the tick over speed. 900 revs should be fine. clockwise more revs anti clockwise less revs.
Now you can adjust your mixture, its the screw at the back of the carb just under the fuel intake pipe in your first picture.

Follow turbominicoopers instructions on the mixture adjustment. Oh and if you remove the oil filler cap once you think you have got it about right you should hear the revs drop very slightly.

[blacktulip]

not being funny but a miny city e has a 998cc in which the hif44 is way too big. i very much doubt you will get the fuelling right anywhere over the whole range of mixture settings. unless of course you have a 1275.

[E-Tizzle]

yeh i think the reason i have this is because i have a 'melon'ing huge exhaust.

the previous owner must have changed the exhaust, and at the same time changed the inlet and exhaust manifold, so they are a 1 piece (seems like cast iron) because its really heavy combined inlet and exhaust manifold.

my friends got a 89 mayfair and his one is split with a much smaller carb on it.
his exhaust manifold also has 3 pipes going into one and then down under the car and a separate inlet, whereas mine has 3 channels going into 2 downpipes and then join into 1 pipe under the car. and a combines inlet. ill se if i can find a picture.

the wholes things a bit of a mess really and the exhaust is too big and i think taking power from the engine.
i should really change it but on a budget and almost finished the car now anyway. unless anyone can suggest a very cheap manifold/carb/exhaust system for under about £100, which i doubt.


thanks for the help.

EDIT:

the number on my carb is: FZX 1524 4 WK 851

here u go, you can see the manifold in this picture.

Edited by E-Tizzle, 23 June 2010 - 07:40 AM.

[CHUNKY365]

Is that a 1300 fanimold!

Way too much for the 1000 Eliot.

You'll need a manifold like this:

Inlet Fanimold

An exhaust manifold, something like this:

Exhaust Fanimold

Then you need to change the carb.

You'll need either a Hif38 or a SU.

They come in a range of sizes from 1.25 of an inch, 1.5 inch and 1.75 inch. The one you have is the largest and totally useless for your engine unless its modified!

Have a dig around.

All these bits can be picked up cheaply at shows, Ebay or someone up the club might have what you want. Check the classified on here. You should be able to pick up the manifolds for under £50 for the pair.

Not only that, I have a couple of suitable carbs in the garage going spare!

[E-Tizzle]

dont blame me i didnt put it on there.

andyj has got that inlet. does that mean ill have to reroute the water pipe aswell to attach to each side of the mani.

how much do you want for one of those carb?

i think ill be better off buying the complete exhaust system, including that ex mani in your link, plus the rest of the ex and back box etc.

cheers