Stag Carburretor Choices

[sujitroy]

By pass valves are fitted to Fed. Stags. if the diaphragms in them are torn. too much air gets into the carbs. and the engine idles too high. have to adjusted the temp. compensators. also when installed did u balance the carbs. check for air leaks from other sources.

[sujitroy]

the choke thingy is simple enough. some carbs . came with a choke gasket. Later models did away with the gasket. did u adjust the choke according to the book.

[richardthestag]

strommies are easy to get right. so long as the float level is spot on and the jet is recessed far enough.

Weirdest thing that nearly stumped me was a missing star washer in the dash pot. thus the needle holder wasnt secured and the efforts at tuning it were utterly futile as it was not fixed in place.

Other than that manual shows exactly how to set them up. A quality air meter is the only specialist tool needed. mixture can be done by lifting the dashpot as per the manual.

btw Terry what on earth have you painted your carbs with?

[Stagdad]

Hi Terry,

If against all odds you decide to ditch your Strommies, then perhaps a Holley Efi kit might be worth considering? Shouldn't be much more expensive than a standard carb, and the 2-barrel version will have more than enough flow (580 CFM) for the Stag engine.

As for the oil catch can I seem to recall it's due to the higher crank case pressure all other carbs tend to generate and that may on occasion push some engine oil out through the breather that needs fitting, so the catch can is essentially just there to avoid having oil squirting all over the place... I am though open to correction if I got that wrong.

Mind you, I've never tried one of these "efi carbs" so don't know if they're any significant improvement on a standard carb, but the marketing material make them out to be easy to fit and setup and pricewise there's not a huge difference anymore.

Cheers
Joakim

Your still Just squirting the fuel in before all the horrible right angles inside the inlet manifold so dont suppose you would gain much for the extra work of running High pressure fuel lines and pump and fitting sensors etc.

[jagorstag]

Your still Just squirting the fuel in before all the horrible right angles inside the inlet manifold so dont suppose you would gain much for the extra work of running High pressure fuel lines and pump and fitting sensors etc.

Perhaps one should adapt an Offenhauser Tunnel Ram inlet manifold for the Stag instead of the original: https://www.ebay.com/itm/Offenhauser...IAAOSwinlblqmv

[Stagdad]

Perhaps one should adapt an Offenhauser Tunnel Ram inlet manifold for the Stag instead of the original: https://www.ebay.com/itm/Offenhauser...IAAOSwinlblqmv

Err yes that is quite a thing.(-:

[PJB]

I contemplate, actually was keen on the Sniper but a numbe4 if people. Well two actually said it’s a bit too much for the limp wristed TV8.
Weber is excellent. No need in my case for a catch can.

[Tdm]

Probably get criticised for doing so, but after another failure to get the Stag going with the Strombergs today (a different problem this time),
and tired of taking them off and on again, I have ordered a Weber.

I am not going to totally abandon the Strombergs though, but when feeling more up to it, am going to have another go at trying to make them work (need a break and a fresh think).

Latest problem was that the "passenger" side carb was spurting fuel out of the overflow, so the float mustn't be closing the valve properly,
or there is now a problem with the choke mechanism on that carb, as I did have them both off to clean them.
The "drivers" side carb seemed to be filling properly.

Probably be some time before the Weber arrives here in Tenerife, so I have time to have yet another go with the Strombergs, and if? I do finally get them to work, will do a comparison of how the car performs with both the Strombergs and the Weber. the most I have ever got out of the Strombergs was 25mpg on a trip to Jersey in 1997 (it's 1st good long run), and also 25mpg when I drove it from North Wales to Tenerife in 2004. Will see what I get out of the Weber when fitted and set up

Thanks for all the replies/suggestions/advise etc. The mechanic I normally use to help is no longer responding to phone and text msgs, so at the moment it is entirely up to me to sort things out (with the help of the Forum of course).

Off to a night of "Rock and Ribs" at a Bar not far away where will probably have quite a bit to drink.
On Friday nights they serve a big platter of Ribs (plus all the trimmings), and it comes with a bucket of several bottles of beer in ice, and at 9.30pm
a live Rock music duo perform and most people get up dancing.

Signing off to get ready

[richardthestag]

the most I have ever got out of the Strombergs was 25mpg on a trip to Jersey in 1997 (it's 1st good long run), and also 25mpg when I drove it from North Wales to Tenerife in 2004. Will see what I get out of the Weber when fitted and set up

Good grief were you towing the Moon?

or do you have a BW automatic fitted?

If BW 26mpg was the best I ever got ..... and that was in ATF b'dum tshhhhhh

Since fitting a Stag manual J-Type OD box I can hit 30mpg without really trying on a good run and also rarely straying from Audi Bothering lane 3 action.

I am interested in comparable fuel economy on the alternative carb solution and whether the difference is spent on multigrade oil

[dasadrew]

Terry,

looking at the pictures of your Strombergs I'm amazed that they work at all! My Stag had some TR Frankenstein Strombergs on it when I bought it and I only got it to run sweetly after buying an overhauled set of Stag Strombergs and, even then, only after I'd disassembled them, cleaned everything, gasket surfaces, ultrasonic bath, the whole lot degreased and shiny, and put them together meticulously with care at every step. I don't recommend putting all the Stromberg bits into a box with the socket wrench either; even small scratches on pistons or a sealing surface can cause woe. I don't have a wide experience, but I find the Strombergs to be very "fragile", needing meticulous attention and care, as opposed to the Weber IDF's on my Escort where they even work with a chunk of the casting broken off!

Actually, at one stage, I bought a cheap set of Strombergs off eBay as I thought I could rob the odd screw or lever as spares. They looked a bit like yours having had a Silver Spray Can overhaul. All of the parts were in such poor condition that I gave up all hope of being able to free up the moving bits, and most went into the bin.

I openly state that I like having the car original with Strombergs (no problem what others do with their cars!) and I wouldn't be surprised if you could get your car running sweetly on Strombergs, but maybe a new set in, hmmmm.... errr... slightly better condition than yours. Might be less fraught with "exotic" problems than fitting a different carburetion system altogether. I'd imagine the price of a "new" set of Strombergs wouldn't be too much different to a different carburettor type.

Drew

[Tdm]

In answer to RichardtheStag and Drew - mine's a BW65 Auto and normally only get around 20mpg, but most of my driving since moving to Tenerife is short journeys only.

The price difference between the various carb options is not a lot, but from what I have heard from others the Weber is easy to fit and easier to maintain, and I'm getting on in years now and want to spent less time fiddling under the bonnet of the Stag, and more time driving it and doing other things.

Fuel economy is not particularly important as Petrol is cheaper here than in the U,K,, and I don't do a lot of mileage in the Stag, use the wife's Honda much more as there are usually 4 or 5 of us going out together most times (with friends and when Family are over). Next year I will have been running the Stag for 25 years, all year round, so can't complain really.

[Tdm]

New Weber Carb ordered Friday pm Nov 2nd, dispatched Nov 5th.
Will see how long it takes to get here, as sometimes parcels get stuck in Tenerife Customs for some time.

[Matt Cook]

Hello,
I have replaced the Strombergs by SU HF6 carbs out of a Rover V8. A bit of work, as the linkafe works the other way round. But I am very happy with them. If you wish I can send pics.
Best wishes,
Dieter.

Hi Dieter,
I'm interested in seeing some pictures and finding out about your SU conversion. Do they fit without any adjustment to the bonnet?

Thanks
Matt

[Dieter H. Marschall]

Hello Matt,
The SU HIF6 carbs fit perfectly under the bonnet - and they even look like the Strombergs. I will gladly try to post some pics here. If this does not work, please give me your email address.
Best wishes,
Dieter.

[Dieter H. Marschall]

Hello Matt,
The SU HIF6 carbs fit perfectly under the bonnet - and they even look like the Strombergs. I will gladly try to post some pics here. If this does not work, please give me your email address.
Best wishes,
Dieter.