SU carbs HIF7s

Author
Discussion

Stevo302

Original Poster:

395 posts

145 months

Tuesday 10th March 2015
quotequote all
Hi does anyone have a twin SU carb setup on here? I've got a couple not linked up and trying to get them sorted. I've no idea how the choke or throttle or fuel is connected.
Any help or pics would be great.
I've tried the jaguar forum but no one has got back.
Regards.

spyker138

930 posts

231 months

Friday 13th March 2015
quotequote all
You really need to get a Haynes manual for whatever the car is you are working on, or something similar. And some time. And the ability to concentrate and not lose any bits.

Stevo302

Original Poster:

395 posts

145 months

Saturday 14th March 2015
quotequote all
I did not have the bits in the first place, that's half the problem. The carbs are an up grade for another car project with smaller carbs on at the mo. I might have to buy a book at some point if no one can help. Going to take the set up to a classic car restorers this morning, they may be able to point me in the right direction. Getting the parts are not a problem, plenty about and cheap, just knowing which bits.
Regards.

varsas

4,042 posts

209 months

Sunday 15th March 2015
quotequote all
I'll try and get some pics, might be a while.

RR and Jaguar use quite different linkages (partly because one's a V8 and the other is a Straight 6 as much as anything else I guess). The RR uses an automatic choke. You open it with the throttle, and it closes by itself as the engine warms. A manual choke would be easier.

Jaguar XJ6's don't use chokes, they have a secondary carberettor that's switched out by hot air from the exhuast manifold. It's a terrible, terrible system. E-types have a conventional choke, but they have 3 carbs.

I dare say a system from a Mk2 Jaguar might be the simplest? Or how about a Triumph, many including the Spitfire 1500 has twin SU's and a very simple choke/throttle linkage.

ecurie

388 posts

209 months

Monday 16th March 2015
quotequote all

Stevo302

Original Poster:

395 posts

145 months

Saturday 21st March 2015
quotequote all
varsas said:
I'll try and get some pics, might be a while.

RR and Jaguar use quite different linkages (partly because one's a V8 and the other is a Straight 6 as much as anything else I guess). The RR uses an automatic choke. You open it with the throttle, and it closes by itself as the engine warms. A manual choke would be easier.

Jaguar XJ6's don't use chokes, they have a secondary carberettor that's switched out by hot air from the exhuast manifold. It's a terrible, terrible system. E-types have a conventional choke, but they have 3 carbs.

I dare say a system from a Mk2 Jaguar might be the simplest? Or how about a Triumph, many including the Spitfire 1500 has twin SU's and a very simple choke/throttle linkage.
Ok, thanks.

Stevo302

Original Poster:

395 posts

145 months

Saturday 21st March 2015
quotequote all

This is all I've got. I'm getting an idea where the fuel goes into the carbs but that's about it.
Regards.