2.25 engine carby options

[army2a]

thinking of getting rid of the stromberg carby on 2.25, due to what i think is fuel starvation when going up long uphills offroad? any thoughts which would be the best, i was thinking of either a solex or zenith. would going to one of these carbs lose any performance? cheers guys

[pop058]

what year is your vehicle ??

[isuzurover]

Forget the solex.

Zenith 36IV is a good carb once you do "the fix"
Weber 34ICH is also OK but prone to vapour lock.
6 cyl Stromberg CD is good.
32/34 DMTL weber from a 2.5P is probably one of the best options, but needs the 2.5 manifold(s) to be done properly.

[korg20000bc]

What's "the fix"?

[d@rk51d3]

What's "the fix"?

Putting the Solex back on. :D

[incisor]

Put a 4psi facet electric fuel pump on it and see how the stromberg copes

[JDNSW]

What's "the fix"?

The Zenith has a tendency for the top cover to warp, allowing all sorts of problems due to leakage where passages continue between the top cover and the main body, or even failure to seal on the O-ring that seals the venturi into the main body.

Remove the top of the carburetter. Disassemble the emulsion block from the top cover as well as other bits and pieces attached to it. The take a perfectly flat surface, such as a sheet of plate glass, and a sheet of about 200grit wet and dry, and carefully grind the mating surface of the top cover flat. This may require removing as much as 0.25mm. While you are at it, also flatten the mating surface on the main body, this should be pretty good, but there may be a bit of a raised area round each threaded hole. Also check that the screws that hold the emulsion block to the top cover are not touching the main body when it is tightened down - there is very little clearance and either the wrong screws, too thick lock washers, or a burr will prop the top cover up. If necessary, grind the heads down slightly.

Reassemble everything, using new gaskets and O-ring.

In my view the best carburetters are the Zenith and Solex, but the Solex is hard to find parts for and its operation is hard to understand. The Weber seems to be less satisfactory, and the other ones suggested have complications with the manifold, although fitted properly may perform better. All those mentioned are an improvement on the Stromberg.

John

[101 Ron]

I dont have experience directly with the Stromberg on a 2.25 landy, but do with a 2.2 jeep in both side valve and and F head form.
I have also played with the Solex on the landy 2.25 afew times.
I think there is nothing wrong with either carby .
I know the Stromberg will work off road well and at steep angles.
Few people when setting up a stromberg go to the trouble to set it up correctly.
The venturi size is marked on the side of the body of a stromberg and must be matched to the needs of the motor in question.........the landy would most likely neeed 1 inch 5/32 size ???? nothing smaller.
I bet the stromberg has just been fitted from another vehicle and a adjustable main jet fitted and hope for the best.
If the stromberg has a problem , it has not be set up correctly.
There is nothing wrong with the other options, but just wanted to point out the strombergs are OK too.

[B.S.F.]

[QUOTE=isuzu rover;1739661] Forget the solex.

Why? I have been using a solex for years without any problems. W.

[Blknight.aus]

theres very little difference between the zenith and the solex...

the solex can starve/flood a little easier than the zenith on high angles and the zenith can warp the top cover.

I prefer the zenith personally because I have more experience with it and IMHO its a little easier to setup.

The solex has a better choke and that can be used to more advantage in some situations than the zenith.

[Series3 GT]

I've got a Weber 2 barrel on my IIA, thats what it came with and it's a really good carbie and gives you that bit extra up hill and doesn't flood or starve.