Best carby for 2A petrol

[Bren]

Probably been in a forum hundred times, but I have just done up a 2a and want to know what is the best carby to put on it? At the moment it has a 320 holley believe it or not!

So what is the best?

Cheers
Bren

[100I]

I don't own a 2a, I've never owned a 2a, and I haven't driven a 2a since I was 14, but Dad's always ran like a clock with a stromberg on it.

[olmate]

Olmate has a stromberg on it - and she goes alright :D

[graceysdad]

Holden carbs have the fans and frowners, you must use the very early ones of the grey motors and fit an ajustable main jet, they are fairly reliable, the original carbys are perfectly ok if they are done up properly and by properly I mean the bottom shaft rebushed so they are tight and it wont suck air, while your at it have the dizzy rebuilt and regraphed and with a nice carby not sucking air it should tune up really well and be reliable, they have survived for 40 years now so the carbs must have something going for them.

[rangieman]

Holden carbs have the fans and frowners, you must use the very early ones of the grey motors and fit an ajustable main jet, they are fairly reliable, the original carbys are perfectly ok if they are done up properly and by properly I mean the bottom shaft rebushed so they are tight and it wont suck air, while your at it have the dizzy rebuilt and regraphed and with a nice carby not sucking air it should tune up really well and be reliable, they have survived for 40 years now so the carbs must have something going for them.
You can use a holden red motor carby (161) (186) are fine;) , A must is to fit a adjustable main jet still availble from any auto spares shop for about $30

The jet is fiddly to adjust but once done it will be good for jonks:D

[JDNSW]

Any of the carburetters fitted to the engine by the factory are good, provided they are in good condition. The main advantage of other carburetters is that they replace a standard one that needs overhauling!
Unlike the standard ones, the Holden carburetters tend to either flood or starve on steep slopes. This is of course not a problem for the majority of owners who never drive seriously off road anyway.

John

[Blknight.aus]

as JDNSW stated....

they fitted the zenith 36IV for a reason.

[Bren]

Thanks for all that.

I have an original solex and a stromberg in the shed so the stromberg seems to be the go. Do adjustable main jets fit all strombergs or it only certain ones?

Cheers
Bren

[Rangier Rover]

Have tried the stromy on my series rovers and have gone back to 36IV. My 51 model series 1 has a solex and have found it likes clean fuel:angel:As said before.... Fix vacume leaks, Service Dizy and it will be reliable and be good off road.

[UncleHo]

G'day Bren :)

If you have an original Solex for it I would get that reconditioned and fit it, if not then go the Holden Stromberg if it is off an early model, (get a 49-51 main jet fitted and then it won't drown the 2.25 motor in petrol), the Stromberg is not a good carby for offroading as they tend to starve on inclines,that is why the Solex and Zenith 36iv was fitted (larger float bowl) there is also a Weber 34ICH Carby that is a direct replacement for both the Solex and Zenith, both of these are now out of production in England.

cheers

[isuzurover]

What the others have said is good advice - except for using a holden carby if you want to go anywhere near a hill offroad.

I had a 36IV on mine (after I tossed the stromberg in the bin) and was happy with it - except for the warping problems they are prone to.

The IIA I built for my dad has a Weber 32/34 (?) DMTL twin barrel, from a 2.5P (need inlet manifold or an adaptor). It is a very good carb IME.

I know people who have used the Stromberg CD Carb from a Rover 6cyl engine (the only good art about that motor!) on a 2.25 with a custom adaptor - the carb needs to sit on about a 30deg. incline. The rover 6 and V8 strombergs are a completely different carb to the holden stromberg.

[JDNSW]

G'day Bren :)

If you have an original Solex for it I would get that reconditioned and fit it, if not then go the Holden Stromberg if it is off an early model, (get a 49-51 main jet fitted and then it won't drown the 2.25 motor in petrol), the Stromberg is not a good carby for offroading as they tend to starve on inclines,that is why the Solex and Zenith 36iv was fitted (larger float bowl) there is also a Weber 34ICH Carby that is a direct replacement for both the Solex and Zenith, both of these are now out of production in England.

cheers

The main advantage of the Zenith is not so much the size of the bowl as the fact that the split float arranged around the emulsion block means that the level of fuel relative to the metering bits is pretty much the same regardless of angle for any angle that is going to have the wheelsstill on the ground. The Solex does not have this, but certainly seems not to worry too much about angle.

John

[Lotz-A-Landies]

G'day Bren :) ...
... there is also a Weber 34ICH Carby that is a direct replacement for both the Solex and Zenith, both of these are now out of production in England.

cheers
Uncle Ho

Wasn't the Webber 34ICH also the OEM fitting for very late Series III 2 1/4 litre? Or is that just because lots have been swapped???
A good carby by most accounts.

Diana

[Bren]

Thanks for the advice.

I have now put the stromberg on (52 jet) and it has a flat spot as you rev up slowly. Shining a torch down the throat I notice it is when the the fuel ends coming in from the fuel pump one to the one that comes in right in the middle. There is momentary pause between fuel entering from anywhere. If that makes sense!! When I rev it past the flat spot and fuel starts coming in the centre it rev properly. Hopefully that makes sense.

Is it the float level or is there an adjustment somewhere?

Cheers
Bren