Fuego Fuel Consumption
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  1. #1
    Member timk's Avatar
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    Icon5 Fuego Fuel Consumption

    Hi Everyone I Am The Proud Owner Of A Fuego And After Changing Cambelt Tensioners Seals And Alternator The Car Seems To Be Running Realy Well. I Am Only Getting Approx 330kms From A Tank Of Fuel Is This About What Is Usual As The Car Performs Very Well But Is Smells Quite Rich At Idle. Are There Any Experts That Specialise In These Webber Carbs As I Have Some Basic Specs Or Should I Just Leave It Be

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  2. #2
    1000+ Posts jo proffi's Avatar
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    Quote Originally Posted by timk
    Hi Everyone I Am The Proud Owner Of A Fuego And After Changing Cambelt Tensioners Seals And Alternator The Car Seems To Be Running Realy Well. I Am Only Getting Approx 330kms From A Tank Of Fuel Is This About What Is Usual As The Car Performs Very Well But Is Smells Quite Rich At Idle. Are There Any Experts That Specialise In These Webber Carbs As I Have Some Basic Specs Or Should I Just Leave It Be

    wow! 330km per tank!. the best I've managed is 310.
    Thats why I'm going EFI.
    You will find carby shops around and I've been quoted from $150 for an off the car rebuild,to $500 for a full rebuild and dyno tune etc ,leaving the car with them for two days.(car only cost$700)
    I've yet to own a fuego that didn't smell rich at idle.
    Best policy is to leave the thing alone,just check that the choke is opperating properly by flipping the cover off and observing the butterfly. My choke shaft was flapping around in its seat,indicating that the carby was in need of a rebuild.
    For some reason I always seem to find a loose bolt that the carby or choke is attatched with, in spite of using locktite.Worth checking.
    Happy Fuegoing
    Jo

  3. #3
    Member timk's Avatar
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    Icon7

    thanks for your info if anyone else has any other figs id love to know as all road tests at time of release said how frugle the perol consumption was on these vehicles
    thanks timk

  4. #4
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    400-450k highway
    325-350k around town
    300k hard driving...

    If you can only get 310k then you car has other issues...

  5. #5
    Tadpole
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    Timk

    I think that you have real problems with your fuel economy. The fuego which I drove since new for 18 years consistently had a fuel economy figure of about 10km / LT, which was a combination of city and highway cycle. I would get about 500km for a tank full. But when I filled up I would typically put 50LT into the tank. But my car was always consistently serviced, so it was in a very good state of tune.
    I think it is time to see your Renault workshop.

    Regards
    Andrew

  6. #6
    1000+ Posts jo proffi's Avatar
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    Its a cheep Fuego mistareno, I'll bet it it does have 'other issues',
    I would have no idea whether all the emmition stuff works or not but think its more a case of...... 300K hard driving.
    I would be curiouse to know how much fuel you could possibly chew through ,say, at a track.
    I will be driving to melbourn on friday and will take carefull log of fuel, to compare with the R21 EFI I will hopefully be installing soon.Will post the comparison.
    Jo

  7. #7
    wielder of the sword Australdi's Avatar
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    Tim Welcome & congrats!
    My first Fuego used to do 550 - 630 per tank on optimax.
    400 -550 on super (600 with a tailwind across the nullabor!!! )
    My current one only does about 450 in town which I'm not too happy with, but I haven't dyno'd it yet.
    Ken fuego is fast becomming an expert on the webers (and every other bit) due to our cars all being "difficult" at the same time!
    good luck!
    Aus
    Aus
    ".....the good health of a pond is held in a delicate balance. A pond's condition
    deteriorates when the bottom environment cannot support animal life.
    The bottom is the area that runs out of oxygen first, it is where the most oxygen is used........"



    '84 fuego GTX
    '87 fuego GTX
    '85 fuego GTX
    ....beginning to look a bit frightning isn't it.

  8. #8
    Member timk's Avatar
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    Icon10 fuego fuel consumption

    thanks for all your replies its good to see that there are a few other nuts like me around. i was hoping to get around 450 500 per tank so i will get another carby and strip it myself and let you know how i go with the rebuild. i am a member of CAF in adelaide and work at a renault dealership and would like this car to be as reliable as possible. i hope to be in touch with you all again soon with better results in the meentime all info gladly recieved

  9. #9
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    Default Fuego fuel economy

    Timk

    You can buy a Weber carburettor Tune up kit from Carravelle Imports 14 Rowern Court, Box Hill North phone (03) 9890 9061 Fax (03) 9899 5923 -These are a Recarb Kit W41 (replaces WE-8072) it comes with a sheet and directions and is packed and distributed by Replacement Carburettors 2/14 Duffy Avenue , Thornleigh N.S.W. 2120 ( your dealership in Adelaide may already buy from them direct)

    If you can get hold of Renault Carb. W part #77 11 077 955, that gives you a wealth of information on the Fuego carburettor. including fault analysis and original settings for the carb.

    There is a slight difference between the ones fitted to the 1984 Fuegos and those fitted to the power steering later models.

    As Haakon has often said on this forum, the stripping, cleaning and fitting of a tune up kit is pretty straightforward if you proceed slowly and carefully. If you have access to a carby chemical cleaning tank and air pressure equipment this helps.

    Watch for worn butterfly spindles/bushes, these need to be rebushed otherwise air leaks in to upset the mixtures, if you are capable of doing this work yourself the cost will be limited to the tune up kit.

    There are many factors that will impact upon fuel economy, hard driving and towing, driving with windows open, low tyre pressures etc will have a direct effect upon economy. Highway driving is the most consistent and I usually get 500 to 550 to the tank , but it does vary.

    Ken

  10. #10
    Simon's Avatar
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    Quote Originally Posted by timk
    i will get another carby and strip it myself and let you know how i go with the rebuild.
    I've got a Fuego carby gathering dust if you need one, marked 32 DARA 46 102 2D. Originally fitted to a 1982/83 MY Fuego, 160,000km's with seemingly good spindles.

  11. #11
    1000+ Posts HONG KONG PUGGY's Avatar
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    Hey timk.
    Congrats on the Fuego. Yes I too think there are some issues with your car/bie. I have previously owned a couple of R20TS hatches, and they constantly returned an average of 9.5-10L/100km. This was mixed city and some 100km driving. The Fuego is basically the same engine,(and the R20 a larger car) so I figure a F' should pull the same or close economy. Also straight highway driving would return as good as 6.5l/100km approx.
    One thing I don't think I saw mentioned were the throttle shafts in the carb base. These wear on manual cars more than auto's, and if yours has done 160,000km + it'd be a fair bet they have a little play in them, which will leak air in and need the idle to be richened to compensate.
    Grab the throttle shaft at the bottom of the carb where the accelerator conects, and try and wobble it. If it's tight your OK. If not, get the base to a carb shop, they will bush the shaft for about $50, and linish all surfaces so you geta good seal when you re-assemble it with new gaskets.
    Good luck
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  12. #12
    1000+ Posts Europa's Avatar
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    Quote Originally Posted by Kenfuego
    If you can get hold of Renault Carb. W part #77 11 077 955, that gives you a wealth of information on the Fuego carburettor. including fault analysis and original settings for the carb.
    Carb manuals temporarily available on http://www.8gordini.com

    Grab 'em while they are available :-)
    '05 Pearl Black Mégane 5-Door LXR(Daily Driver), '75 Trak Yellow R16TSA (Parts Car), '74 Midnight Blue R17TS (Rebuilding), '73 457 Blue R17TL (Parts Car), '72 Alpine White R16TL (Retired), '69 Sunburst Brown R16TS (Awaiting Rebuild), '68 "Appliance White" Europa (Stored)

  13. #13
    1000+ Posts HONG KONG PUGGY's Avatar
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    Thanks for that link Europa. It will be handy for future reference.

    Chris
    2016 Renault Sport Clio Cup EDC 200



    Previous

    2001 Rx-4 Privilege
    R17TL, 1973
    R20TS x 3
    R18 GTS wagon x 2
    R10





    "When you hit the tree between the headlights thats understeer. Oversteer is when you hit the tree between the Tail Lights" - Wayne Bell

  14. #14
    1000+ Posts The Gonz's Avatar
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    Icon10 Fuego's fuel consumption can be better

    After jigging the autochoke so it wasn't impacting on the carburettor's operation (basically opening the clamshell and giving the coil spring an extra two turns before reattaching) and some careful idle and mixture adjustments thanks to guidance from the likes of Kenfuego, I'm getting 450 city cycle and recently got a whopping 750 from Melbourne to Adelaide whilst carrying three people, a dog and a month's worth of holiday luggage!


    Anyone else going to the Aerospace Congress / Avalon Airshow next week?
    Last edited by The Gonz; 10th March 2005 at 10:37 AM.

  15. #15
    wielder of the sword Australdi's Avatar
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    750!!!!
    That must have been one hell of a tail wind!!
    I'm jealous!
    Aus
    Aus
    ".....the good health of a pond is held in a delicate balance. A pond's condition
    deteriorates when the bottom environment cannot support animal life.
    The bottom is the area that runs out of oxygen first, it is where the most oxygen is used........"



    '84 fuego GTX
    '87 fuego GTX
    '85 fuego GTX
    ....beginning to look a bit frightning isn't it.

  16. #16
    1000+ Posts HONG KONG PUGGY's Avatar
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    Quote Originally Posted by Australdi
    750!!!!
    That must have been one hell of a tail wind!!
    I'm jealous!
    Aus
    Hahahaha,
    Di , as most here would know you'd have a good idea of how far Fuego's wuld go. May-be he filled the filler pipe too, and had about an inch in the bottom of the boot running back into the tank. (750=approx 40mpg or ...if the tank 12gallon/54.5 litres.....46mpg if it's only 10gall/45 litres)
    May have to check my maths....
    Actually Gonz, how is it running at the moment, it's not too lean? Have you checked the plugs for how they are burning??
    Last edited by HONG KONG PUGGY; 10th March 2005 at 01:49 PM.
    2016 Renault Sport Clio Cup EDC 200



    Previous

    2001 Rx-4 Privilege
    R17TL, 1973
    R20TS x 3
    R18 GTS wagon x 2
    R10





    "When you hit the tree between the headlights thats understeer. Oversteer is when you hit the tree between the Tail Lights" - Wayne Bell

  17. #17
    1000+ Posts Europa's Avatar
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    I've done Melbourne to Adelaide in Dad's 3.0Litre V6 Laguna Auto, driver only but full of Ikea furniture. Perfect driving conditions (22 degrees, no wind) Filled up on Bell St, Pascoe Vale then again on Portrush Road, Glenunga. The Laguna has a 66 litre tank. whereis.com.au says that the distance equates to 717km

    Fuel light came on at the Stirling exit on the South Eastern Freeway.

    Trip computer was showing something like 8.2l/100km average.

    With that trip in mind, I reckon you could do it in a Fuego, smaller tank, but smaller engine and manual transmission...
    '05 Pearl Black Mégane 5-Door LXR(Daily Driver), '75 Trak Yellow R16TSA (Parts Car), '74 Midnight Blue R17TS (Rebuilding), '73 457 Blue R17TL (Parts Car), '72 Alpine White R16TL (Retired), '69 Sunburst Brown R16TS (Awaiting Rebuild), '68 "Appliance White" Europa (Stored)

  18. #18
    1000+ Posts The Gonz's Avatar
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    Icon10 Plugs? Does it have PLUGS???

    Quote Originally Posted by HONG KONG PUGGY
    Actually Gonz, how is it running at the moment, it's not too lean? Have you checked the plugs for how they are burning??
    Plugs? What do they look like?

    Nah...that'd mean opening up the bonnet and getting dirty. The backfiring makes it sound really mean and sporty and the free and easy flow out of the "driver's bum" muffler is probably helping the economy

    Still looking for a cheap compatible hot dog muffler - I figure the "torpedo" profile will resist fatiguing aroung the pipe flange like the last one.

    Any ideas? And what's that about plugs again?

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