Thread: Weber carb in S111

Originally Posted by angus1

My project 1973 S111 is fitted with a Weber 32/34 DTML carb which had been very butchered. The main jet had been drilled out to who knows what diameter and the emulsion tubes were different from each other and the secondary idle jet was MISSING! I obtained the jet sizes from a 90/110 manual and got all new ones from FastRoadCars in UK plus a complete rebuild kit. However the mixture was very weak and would not pull although the idle was smooth. Fitting the drilled out jet improved matters but the engine still spluttered on acceleration. The power valve turned out to be blocked and after drilling out the lead plugs and cleaning the jet it ran well but only with the drilled out main jet. Does anyone know if the Series 111 would require different jet sizes? I have noted in a few posts that the mixture will be very lean at the 90/110 settings due to different emission reqirements but it is the same engine,is it not?
Grateful for any help

No clue mate, but thought the post warranted an answer of some kind!

Hello,

There is a link in a UK All Things Land Rover conversions which has some information about the Weber applications. Weber 34ICH on a Land Rover engine

This is the author of the website's opinion - they do not recommend a Weber. The article is also referring to different model Webers than what you mentioned Also you did not mention whether it is for a 4 or a 6 cylinder. Other people no doubt have used Weber's and are happy with them.

Hopefully some information is better than no information to you. I did an internet search with the following keywords and it came up with pages of information sites with varying opinions - weber carburettor Land Rover series 3

Kind Regards
Lionel

G'day Angus,

Another thing you can do to capture AULRO local knowledge on the Weber Carburettor is to look up to the top right of your screen and it says "Welcome"

There is a colour shaded bar below this which has the option "Search". Click on this and a drop down menu appears. Click on Advanced Search. To the left is a slot for Keywords. Type in Weber Carb. Then to the right of the screen is a drop down menu of all the forum's different specialist threads. Scroll down and click on "Series 3" and then scroll down and click on the search button.

At least the advanced search allows you to limit the search to Series 3 information.

Hours and hours of useful tips are waiting for you to read. Whether you matter is resolved or you get a headache I am not sure.

Kind Regards
Lionel

G'day Angus,

Another thing you can do to capture AULRO local knowledge on the Weber Carburettor is to look up to the top right of your screen and it says "Welcome"

There is a colour shaded bar below this which has the option "Search". Click on this and a drop down menu appears. Click on Advanced Search. To the left is a slot for Keywords. Type in Weber Carb. Then to the right of the screen is a drop down menu of " Search all Forums and the forum's different specialist titles will appear. Scroll down and click on "Series III" and then scroll down and click on the "Search Now" button.

At least the advanced search allows you to limit the search to Series III information.

Hours and hours of useful tips are waiting for you to read. Whether your matter is resolved or you get a headache I am not sure.

Kind Regards
Lionel

Hi Angus,

The 90/110 was not exactly the same engine, they were a 2.5 instead of 2.25l. Based on the same block and so on but slightly different (5 main bearing was one difference). This version of the engine was never brought into Australia by Landrover so there are very few parts or local knowledge about them. The 32/34 Weber that came on them was completely different to the 34ICH that was on the Series 3 2.25l as I am sure you know. But because of this there is not much known about how to tune them for the 2.25l here in Australia. I think I have heard of a couple of cars with them on in posts here on AULRO but have never seen one and would have no idea how to set one up. I think you are going to have to keep hunting on UK web sites for information as it is probably the only place you will get it.

Sorry, not a lot of help .

Cheers,

TimJ.

Thanks for your interest, Timj. The manual pages I have appears to be a Haynes, thus UK so I expect you are right. It lists jet sizes for the 90 and 110, years 1983 to 1986 for the 2.286l engine and these are the sizes I ordered from FastRoadCars. The weber is a 2 choke progressive and it has its own manifold not a conversion plate. As I have the original manifold fitted with a Holden Stromberg on it I might go the easy way out and get a new 34ICH which I see are a direct replacement for the original Zenith and are reasonably cheap. The 32/34 is a complicated little beast and without my 'Supereyes' gadget I would never have been able to find the blockage within the power valve. I am off the UK next year so I might struggle on for now and then buy a carbie over there.
Also, thanks to Liongee, I hadn't tried the Advanced Search feature but it is a great way to keep the range of search manageable.
Many thanks

What a nightmare carb that is weber 34ICH. im having terrible trouble with the engine bogging down , seems like fuel starvation at higher rpm. It seems to do it only when the engine is at operating temp. Its the cleanest carb in town and brand new. Ign is in tip top cond. Its basically useless and will be used for target practice. Piece of ****

The carb hunt is on.