My BX14 RE

Tell us about life with your BX, or indeed life in general!
rutter123
Over 2k
Posts: 2488
Joined: Sun Sep 02, 2012 9:54 pm
Location: South Lincs
My Cars: 65 Peugeot Boxer van 160k
Ven red tzd turbo 294k it will live again
Nissan Micra K13 the wife's run around
x 97

Re: My BX14 RE

Post by rutter123 »

Twin SU's on a 1977 Dolly Sprint circa 1996 but they got junked cos they were s##t in favour of a twin40s which were really good, so good in fact they blew the engine up, knock knock.
Was prob the last carbed car I had.
90 BX Tzd turbo 294k SORN undergoing major surgery
90 BX Tzd turbo estate 46k awaiting surgery
65 Peugeot Boxer Van the new workhorse
52 Toyota Rav4 180k Bulletproof Jap reliability

User avatar
jamescarruthers
BXpert
Posts: 548
Joined: Wed Nov 07, 2012 2:11 pm
Location: Cambridge
x 20

Re: My BX14 RE

Post by jamescarruthers »

Well done, this is good but if reasoned lateral thinking to swap the good bits to the copy carb. Pleased it is running well for you now. Fingers crossed it stays that way.
1987 Volvo 480 ES
2006 Citroen C6 Exclusive 3.0 petrol/LPG

Previous BX's:
A966 XRL -- BX 16 TRS
H767 BEG -- BX 14 TGE
B316 AMP -- BX 14 E

User avatar
Kitch
Over 2k
Posts: 6350
Joined: Sun Jul 03, 2005 9:36 pm
Location: Fareham, Hants
My Cars: Too many to list
x 71

Re: My BX14 RE

Post by Kitch »

white exec wrote:
Thu Jun 03, 2021 9:29 pm
Carburettors! Last time I had the pleasures of them was at the very end of the last century. Since then, choice has been decidedly diesel. Not missing the HT and plugs, either. Or the vapour locking. Or the in-tank pumps. Or the mpg.
Hey, ho. :-"
I hate carbs with a passion. I know they were all we had, but the move to injection took far too long, IMO. My mk1 TRS has a Weber and it drives like shit. Good for one of those, mind, but compared with the 16v it's awful. Lumpy, has a mind of its own when hot starting (though cold starting I have to admit, it's amazing!) Tweaked it and tweaked it as good as it will get, but sometimes you need electronics.
CCC BX monthly column writer bloke thingy - bx@citroencarclub.org.uk

The national BX register - click to submit a car!

1983(A) 16TRS (Rouge Valleunga) - 1987(E) GTi 16v (Noir) - 1990(H) 16Valve (Rouge Furio)

User avatar
white exec
BXpert
Posts: 536
Joined: Sat Sep 12, 2020 4:04 pm
Location: Sayalonga, Malaga
My Cars: 1992 BX19D Millesime
- LHD, NA, AC, RP_5800
1996 XM 2.5TD Exclusive
x 54

Re: My BX14 RE

Post by white exec »

Wonder whether this is of any help for the 16TRS... Ours had a ?? twin-choke Weber too, iirc.
viewtopic.php?p=268719#p268719
Chris

User avatar
Fumbler
BXpert
Posts: 173
Joined: Thu May 20, 2021 7:21 pm
Location: Tunbridge Wells
My Cars: Citroen BX14 RE
Nissan Micra Shape
x 20

Re: My BX14 RE

Post by Fumbler »

Kitch wrote:
Sat Jun 05, 2021 12:02 pm
white exec wrote:
Thu Jun 03, 2021 9:29 pm
Carburettors! Last time I had the pleasures of them was at the very end of the last century. Since then, choice has been decidedly diesel. Not missing the HT and plugs, either. Or the vapour locking. Or the in-tank pumps. Or the mpg.
Hey, ho. :-"
I hate carbs with a passion. I know they were all we had, but the move to injection took far too long, IMO. My mk1 TRS has a Weber and it drives like shit. Good for one of those, mind, but compared with the 16v it's awful. Lumpy, has a mind of its own when hot starting (though cold starting I have to admit, it's amazing!) Tweaked it and tweaked it as good as it will get, but sometimes you need electronics.
With carbs it's a bit of a roulette wheel with what you get. There are some super reliable ones, like the SU, then there are ones which cannot be adjusted or they run like shite, such as the Japanese carbs, or there are others which just din't like being, well, a carburettor.

I will say that your TRS shouldn't be lumpy and all over the place at idle. A gasket refresh and a trip to the ultrasonic bath usually helps with things, but as you say, there comes a point when injection is just better in every single way.

panky
BXpert
Posts: 231
Joined: Mon Jan 22, 2018 4:44 pm
Location: Widnes
My Cars: 1991 Mini Cooper, 1971 Morris Minor Traveller, 1971 Commer Auto-Sleeper, 1969 Commer Jennings Roadranger.
'88 BX GTi (a long time ago)
x 18

Re: My BX14 RE

Post by panky »

I've converted both my Commer campers from the rubbish Zeniths to SU's and they run superbly. More power and torque, better fuel consumption with just the dashpot to top up occasionally - great carbs. I've often wondered if a SU conversion for the BX carb engines would work.
Image

User avatar
Fumbler
BXpert
Posts: 173
Joined: Thu May 20, 2021 7:21 pm
Location: Tunbridge Wells
My Cars: Citroen BX14 RE
Nissan Micra Shape
x 20

Re: My BX14 RE

Post by Fumbler »

panky wrote:
Sat Jun 05, 2021 1:28 pm
I've converted both my Commer campers from the rubbish Zeniths to SU's and they run superbly. More power and torque, better fuel consumption with just the dashpot to top up occasionally - great carbs. I've often wondered if a SU conversion for the BX carb engines would work.
With an adapter on the manifold, it'd work. It would decrease power, though, so I'd probably want to make a custom manifold and have two.

Speaking of carburettor swaps, I'm not content on having this one in the car. At some point I want to replace the manifold so I can put in a Solex 32-34 twin barrel carb, because more power, better parts availability and support, thanks to it being fitted to popular Peugeot 205 models. There's a wealth of knowledge on 205 forums so that would be a worthy contender.

I either do that or I buy/make a custom manifold with which I can put any carburettor (or even Holley EFI) on and never worry about stupidity with obscure Solexes ever again.

User avatar
jamescarruthers
BXpert
Posts: 548
Joined: Wed Nov 07, 2012 2:11 pm
Location: Cambridge
x 20

Re: My BX14 RE

Post by jamescarruthers »

Wasn’t the AX GT set up a nice little conversion for the BX TU?
1987 Volvo 480 ES
2006 Citroen C6 Exclusive 3.0 petrol/LPG

Previous BX's:
A966 XRL -- BX 16 TRS
H767 BEG -- BX 14 TGE
B316 AMP -- BX 14 E

User avatar
Fumbler
BXpert
Posts: 173
Joined: Thu May 20, 2021 7:21 pm
Location: Tunbridge Wells
My Cars: Citroen BX14 RE
Nissan Micra Shape
x 20

Re: My BX14 RE

Post by Fumbler »

jamescarruthers wrote:
Sat Jun 05, 2021 2:47 pm
Wasn’t the AX GT set up a nice little conversion for the BX TU?
I believe so. The problem is that there isn't an abundance of parts anymore, or, indeed, ever.

panky
BXpert
Posts: 231
Joined: Mon Jan 22, 2018 4:44 pm
Location: Widnes
My Cars: 1991 Mini Cooper, 1971 Morris Minor Traveller, 1971 Commer Auto-Sleeper, 1969 Commer Jennings Roadranger.
'88 BX GTi (a long time ago)
x 18

Re: My BX14 RE

Post by panky »

An adapter would cause problems but if the manifold was modded to take the side draught SU, or better still a custom manifold, the 1 3/4" SU is good for 130bhp (in the right tune and engine) so it's food for thought.

I had a custom manifold made for my 1725 Rapier engined Camper and it goes very well ( had it almost round to the zero stop pin from the opposite direction)

Image

And for the standard manifold the mod is quite simple

Down draught Zenith connection removed and closed off and stub for SU added

Image

Image
Image

User avatar
Fumbler
BXpert
Posts: 173
Joined: Thu May 20, 2021 7:21 pm
Location: Tunbridge Wells
My Cars: Citroen BX14 RE
Nissan Micra Shape
x 20

Re: My BX14 RE

Post by Fumbler »

panky wrote:
Sat Jun 05, 2021 5:07 pm
An adapter would cause problems but if the manifold was modded to take the side draught SU, or better still a custom manifold, the 1 3/4" SU is good for 130bhp (in the right tune and engine) so it's food for thought.

I had a custom manifold made for my 1725 Rapier engined Camper and it goes very well ( had it almost round to the zero stop pin from the opposite direction)

Image

And for the standard manifold the mod is quite simple

Down draught Zenith connection removed and closed off and stub for SU added

Image

Image
Food for thought. If I ever get into TIG welding or get good at MIG, I'll set about making a manifold. It would definitely fix my problems once and for all.

User avatar
white exec
BXpert
Posts: 536
Joined: Sat Sep 12, 2020 4:04 pm
Location: Sayalonga, Malaga
My Cars: 1992 BX19D Millesime
- LHD, NA, AC, RP_5800
1996 XM 2.5TD Exclusive
x 54

Re: My BX14 RE

Post by white exec »

Those large-bore SU's were quite something. Rover P5 had a single 2" on its 3L straight six. All the P6's had SU's too, right up to the appearance of EFi on the 3500 SD1. Our P6 3500S (a pair of SU HD's) was really rather swift, and what seemed like constant torque right up to 122mph.

Easy to maintain, especially if you ignored the advice to owners of earlier Austin-Morris-Leyland cars to fill the dashpot with "engine oil" - which back then usually meant 20W50, and was way too thick. SAE20 or 30 was SU's recommendation, iirc.

Balancing a pair (or even three) was really straightforward with an inexpensive Gunson's Carbalancer (Halfr**ds sold some useful stuff in those days), and I could set SU mixture blindfolded, using the jet nut and the jiggle pin.

Never got on with the Strombergs which Triumph used. They must have been a way of getting around SU's patented design.
Chris

User avatar
Fumbler
BXpert
Posts: 173
Joined: Thu May 20, 2021 7:21 pm
Location: Tunbridge Wells
My Cars: Citroen BX14 RE
Nissan Micra Shape
x 20

Re: My BX14 RE

Post by Fumbler »

PXL_20210605_161810827.jpg
PXL_20210605_161821286.jpg
Here goes nothing
You do not have the required permissions to view the files attached to this post.

panky
BXpert
Posts: 231
Joined: Mon Jan 22, 2018 4:44 pm
Location: Widnes
My Cars: 1991 Mini Cooper, 1971 Morris Minor Traveller, 1971 Commer Auto-Sleeper, 1969 Commer Jennings Roadranger.
'88 BX GTi (a long time ago)
x 18

Re: My BX14 RE

Post by panky »

I use 20/50 in the 'Big Camper' dash pot with it's modified needle, any thinner causes issues, but I need to use EP 90 in the Rapier engined one ( in my profile Pic) otherwise the engine bogs down as the piston rises to quickly weakening the mixture. I've already got two springs on the piston to stop it fluttering so it just goes to show if you wander outside a standard set up the be prepared to experiment.
I also use 20/50 in my Mini Cooper and Morris Traveller (when it's running :roll: ) as recommended by many owners. Some find the SU oil, which is basically SAEW20, to work well but then again I'm not running standard set ups so a bit of trial and error is needed.
Image

panky
BXpert
Posts: 231
Joined: Mon Jan 22, 2018 4:44 pm
Location: Widnes
My Cars: 1991 Mini Cooper, 1971 Morris Minor Traveller, 1971 Commer Auto-Sleeper, 1969 Commer Jennings Roadranger.
'88 BX GTi (a long time ago)
x 18

Re: My BX14 RE

Post by panky »

Fumbler wrote:
Sat Jun 05, 2021 5:52 pm
Image
Image

Here goes nothing
Just a tickle with the welder needed :D
Sorry about the SU hijack by the way :oops:
Image