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Hoping someone on here might be able to help, as most of what I can find from googling is either in Russian or useless and not detailed at all.
I took the carb off my 1.5 Riva tonight and being a '94 cat model it's got a fat load of EGR rubbish, solenoids and some strange hot water choke system slapped onto it.
Does anyone know what would be a suitable more user friendly carburettor to fit?
I'll weld up the manifold where the EGR goes and run without the solenoids and all that jazz. I'll probably manage without the hot water choke too, I have no problems with cutting the firewall up to run a cable for a manual choke. Ideally if you can plonk an eBay link here telling me "this will fit" then my life will be so much easier and I will actually be alarmingly close to having the car on the road.
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No link I'm afraid but I remember the lada boys running twin choke webber carb such as 28/36 wirth an adaptor plate many years back.
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AFAIK the Riva was one of the last cars to be sold with a carb. Emissions means it required all the items you want to remove to be legal in the UK and then only just managed. Removing them could find it impossible to gain an MOT in the future. This might be of some help - www.ladaniva.co.uk/baxter/resources/WeberSwap.htm
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Sept 1, 2014 10:48:10 GMT
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Bike carbs
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Nobody dies a virgin, because lifes curse word us ALL
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Sept 1, 2014 20:33:30 GMT
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Bought a 32-36. We'll give that a go!
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Sept 2, 2014 17:50:10 GMT
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why change it? They are a really good carb, it was the older ozone carb that everyone didnt like.
my 2104 had one of these, when it was cold you could not open the second barrel, and something had bent on the linkage to stop it when it was warm. I sorted that out, it was a little arm or something i cant remember, and the car flew.
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Sept 2, 2014 21:50:20 GMT
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Yeah, theres a valve at the top to stop the second barrel opening when the engine is cold. that's understandable, but the two flaps at the bottom should open. only one does, the other appears to have been stuck shut for a while and a piece of the linkage that joins the two together seems to be missing. there's also the issue of neither of the solenoids working at all, and the fact that this one has sat for five years.
The carb I have just bought has allegedly just been rebuild, and I'm hoping that it'll fit. should give significantly better air flow as well.
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Kieran
Posted a lot
Posts: 1,092
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Sept 3, 2014 16:18:58 GMT
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I fitted a 32/36 onto Jenns Lada 1500 estate. Ran ok, had to drill the jets to get it running lean enough, without having a massive hesitation going into the second choke.
Ran nice and smooth with the second choke linkage removed and not much slower, just loads better on fuel!
In the end I found a 34mm single choke dellorto and that was great, smooth and drive able.
A 32:32 might be better from a 1600 xflow, 32:36 are from 2 litre pintos normally.
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The Ashby Jackson fleet:-
1979 Mini Clubman 1.8 K series 1978 Skoda 110r Project 130RS K-oupe 1978 Austin Allegro 1500 SDL Estate 1984 BMW K100 Sidecar outfit 1999 Yamaha FZS 1000 Fazer 1991 Kawasaki ZXR400 race bike 2002 Kawasaki ZX9r race bike
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Sept 7, 2014 10:32:15 GMT
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i think the second choke on the lada carb opens pheumatically? i cant remember
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Kieran
Posted a lot
Posts: 1,092
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Sept 8, 2014 14:16:15 GMT
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It's probably a vacuum secondary, so only open under high vacuum.
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The Ashby Jackson fleet:-
1979 Mini Clubman 1.8 K series 1978 Skoda 110r Project 130RS K-oupe 1978 Austin Allegro 1500 SDL Estate 1984 BMW K100 Sidecar outfit 1999 Yamaha FZS 1000 Fazer 1991 Kawasaki ZXR400 race bike 2002 Kawasaki ZX9r race bike
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Sept 8, 2014 18:58:37 GMT
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Ahh that would make sense. not that it would ever work, it's almost seized solid and none of the solenoids work. I'll try and get this weber to make her fire up.
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Sept 8, 2014 20:17:18 GMT
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The diaphragms (the big flying saucer things) that assist in opening the secondary barrel will be kaput. They're prevented from opening by a lever operated by the throttle pedal. Once the throttle is fully open, the lever lets the secondary open via vacuum.
My mate has just taken an engine out of his Lada, I can ask if he is selling the carb, but I'd go for the Weber.
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That would be great if you could ask, but I would only be interested in ones from an older car than mine.
Ideally, the huge weber will be quite a bit better, but I have no idea what all this re-jetting business is, I'm more familiar with injection and coilpacks!
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I got hold of a second hand one. I would buy a new one, but that one you've linked me cost more than the car haha
Should be here this week, maybe later today!
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Sept 12, 2014 21:16:51 GMT
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The diaphragms (the big flying saucer things) that assist in opening the secondary barrel will be kaput. They're prevented from opening by a lever operated by the throttle pedal. Once the throttle is fully open, the lever lets the secondary open via vacuum. My mate has just taken an engine out of his Lada, I can ask if he is selling the carb, but I'd go for the Weber. Lada ozone carb, this is the later one... as is say these are great carbs, the part that broke on mine, when i figured it out, my car went really well...
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Sept 12, 2014 22:26:20 GMT
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Watching this thread, as i am having trouble with the carb on my 2101, and the replacement carb is just as bad.
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1993 Fiat Panda Selecta 2003 Vauxhall Combo 1.7DI van 2006 Mercedes Kompressor Evolution-S AMG SportCoupé
"You think you hate it now, wait til you drive it"
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Sept 14, 2014 0:51:42 GMT
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I have a project thread as well but I'll let you know. I can see an MX5 engine/gearbox/clutch pedal/electronics swap in my crystal ball though...
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Sept 14, 2014 1:16:35 GMT
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I have to admit, I have been toying with the fiat twin cam idea, especially after seeing that 2102 Lada estate going up the hill at the Gathering, no offence to the owner, but man was that car slow off the mark.
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1993 Fiat Panda Selecta 2003 Vauxhall Combo 1.7DI van 2006 Mercedes Kompressor Evolution-S AMG SportCoupé
"You think you hate it now, wait til you drive it"
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Sept 14, 2014 1:49:22 GMT
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You see that's all well and good but the issue I see is price and parts. by the time you've got a good engine in there including a minor rebuild for a clean bill of health, you've spent an awful lot of money on a very large and not fantastic engine. Doubt the gearbox and clutch will be best pleased about it either. a 1.8 mx5 engine and gearbox will be lighter, far far more reliable, and the list of tuning options available such as turbo kits and superchargers and internals and management and all that gubbins never stops. I investaged the costs, and minus fitting the whole lot, it comes to about £350, minus whatever you would get for breaking an MX5! 130hp ish seems to make sense to me too.
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