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126 BIS

This are extracts of the 126 BIS workshop manual which I will comment in some cases...
This is just an abstract of the"Fiat 126 BIS workshop manual", anyway. The, as I suppose, complete version is available for download under the category "Miscellaneous" in english language.




General information

ABE following TÜV: 8773/1 (Fiat 126 A since 06/1987)

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There are some things which have turned out as useful on the road:
  • Hammer
  • Some screwdrivers
  • Ratched box (ws5 to ws32, extensions...)
  • Flat wrench (ws8, ws10, ws13, ws21, ws22, ws24)
  • Pliers (long nosed, universal, multigrip...)
  • Spark plug brush
  • Tab
  • Multimeter
  • "Liquids" (see "liquid equipment")
  • Spares (e.g.: lights, condenser!!!, screws, spark plugs, wire...)
  • support parts (laces, insulating tape, lighter for spark plug drying...)
  • First aid box, car jack and spare wheel (no topic, isn't it?)
  • and anything else you think it's useful...

Yes! I'm paranoid!
Sounds cruel, is cruel...!
I know some Fiat driver who get along without. I was need of most of these parts, anyway...
Concerning condenser: If you don't have the right one any other does, too. Important is to have one with the right capacity and for 12V . Some say this is ok and some say it isn't.
So anyone has to decide on his own. I try to have the right condensers as spares on board.

Interior

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The interior consists of:
  • Front seats with adjustable backrests
  • Stowable rear seat
  • Heated rear window
  • "Real" boot
  • Complete instrument panel
  • Prepared radio installation bay
  • Storage for front-seat passenger
  • Sun shield (front-seat passenger with tiny cosmetic mirror)

Roof and sun shield are easily modernized in your own design. I did so, because in my case they very dirty (and I realy mean dirty!)
Likewise applies for door covreing and upholstery. You can basicly have anything you want.
You can improve the seats easily by modifying the seat slides. The car turns out more comfortable with more space for your legs. And you can build in seats from Nissan Micra with small changes only.

Dimensions and wheights

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Dimensions


Boot following VDA:
Front 55 liter
Rear
(Rear seat up) 		110 liter
Rear
(rear seat semi down) 		270 liter
Rear
(rear seat down) 		500 liter

You won't believe it, but you can go on hollidays with your girlfriend for weeks. No problem! With your rear seat down you can store a lot inside. And the car fits next to your tent.
The boot in front is, at least in my case, always filled with tools and spares.

Weights

net weight
(ready to start) 		620kg
max. overall weight
(ready to start) 		965kg = 620kg + 345kg (4 pers. + 65kg)
max. weight allocation
(front) 		347kg
max. wheight allocation
(rear) 		618kg
towed load Improper for clinger
(Known cases of registered tow-bar with 400kg towed load)

In "Miscellaneous" area there is a tow-bar registration as reference for download. (towed load with braked clinger of 670kg)

Power and consumption

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Engine 703 ccm
Gearbox 5 gear manual transmission

Speed km/h (2 passanger + 20kg)
1st gear 34 km/h
2nd gear 53 km/h
3rd gear 84,5 km/h
4th gear 116 km/h
reverse 30 km/h

Climbing ability (full load)
1st gear 24 %
2nd gear 14 %
3rd gear 8 %
4th gear 4,6 %
reverse 26,3 %

Fuel consumption following "Euronorm" (liter/100 km)
city cycle 5,8 liter/100 km
90 km/h constant 4,4 liter/100 km

Concerning fuel consumption: The specifications given by Fiat have ever been as useful as saying "Yes, ist consumes fuel". They measure the consumption on a roller. Not very realistic, I think.
I measured on my own and got these results:
  • Consumption:
    • mixed traveling (city + overland: 5,5 liter/100km
    • Autobahn (depending on load): 4,0 bis 4,6 liter/100km
    • city: 6 to 7 liter/100km
  • Speed:
    • 0 to 100km/h: 52,2 Sek.
    • 60 to 100km/h: 13,1 Sek.
Perhaps this is more useful. But they are not normalized, anyway. I measured them on a flat road. Anyone of you will get different results.

Colour and accessories

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Colours

  • seat cover and colour: composition cloth / leather knock-off - 346
  • finish pastel colour:
    • Meteor-Ivory (205)
    • Korfu-White (224)
    • Oslo-Grey (626)
    • Aegean Blue (444)
    • Corsa-Red (854)
The Cors-Red ist familiar with "Hammerit-Red, bright".
If you are looking for a cheap finish, Hammerit is a good substitute for Corsa-Red. But consider well, it is no substitute for a good and professionel paintshop. ;-)
And be careful: Hammerit tends to become mellow in hot weather and absorbs dirt.

Accessories

(Only in Italy)
Automatic safety belts in series
Hazard warning lights in series
Reclining seats in front On demand
safety belts in the rear On demand
Rear windscreen wiper +
ausstellbare Dreiecksfenster vorne 		On demand
exterior mirror on the right On demand
These italians... ;-)
Oh yes... The fuel tank cap isn't lockable. But there are universal spare parts fitting Fiat Uno. I got one.

Filling quantity / liquid equipment

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Filling quantity

Benzine ROZ (98-100) Tank 21 liter
Water & Liquido Paraflu FIAT
(je 50%) 		Cooling system 4,8 liter
VS+ Superstagionale
(SAE 10 W)
(SAE 20 W)>
(SAE 30)
(SAE 40)

VS+ Supermultigrado
(SAE 10 W/30)
(SAE 15 W/40) 		Engine 2,25 liter / 2kg
TUTELA ZC 90 Gear 1,1 liter / 1kg
K 854 Steering 0,14 liter / 0,127kg
TUTELA DOT 3 Breaking system 0,35 liter / 0,35kg
Water + Liquido Autofa DP1 Windscreen wiper 2x 2 liter

Liquid equipment

SAE 40
SAE 30
SAE 20 W 		Oil with ash concentration for benzine powered engines. API-Services "SE". Exceeds the european specification CCMC-G1 Temperature 0°C to >35°C
Temperature 0°C to <35°C
minimal temperature -15°C bis 0°C
SAE 10 W/30
SAE 15 W/40 		Oil with ash concentration for benzine powered engines. API-Services "SE". Exceeds the european specification CCMC-G2 Temperature <-15°C bis 30°C
Temperature -15°C bis >35°C
TUTELA ZC 90 Oil SAE 80W/90 not EP, for manual gears, with wear retardant additve. Non hypoid gears
K 854 Lithium soap based grease, density NLGI=000, with Molybdenumdisulfid Toothed rack steering
TUTELA DOT 3
TUTELA DOT 4 		braking fluid corresponding USA-standard FMVSS Nr. 116, SAE J 1703, ISO 4925, CUNA NC-956-01 Hydraulic brakes and clutches
Liquido Autofa DP1 Liquid cleaner, alcohol based Added pure or thined to the windscreen cleaning system
Liquido Paraflu FIAT Antifreeze and -corrosive media based on monoethylenglykol for cooling systems Cooling system
Mixing ratio:
35% down to -25C
50% down to -35C

The 126 is leaking! Almost always! The matter is the amount.
In case of restauration change all seals and parts with wear. It's no fun on later days! Thing which are good travel companions, I think:
  • Oil,
  • jerry can,
  • destilled water (mixed with antifreeze or separate antifreeze during winter),
  • creeping oil,
  • compressed air for outblowing spray nozzle
  • brakiung fluid...

Technical data

Engine

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Characteristics:
Type 126 A2.000
Operational mode OTTO
four stroke cycle
cylinders two in row
Cylinder liner
(Bore) 		80mm
Cylinder stroke 70mm
Cylinder capacity 703 ccm
Copmression ratio 8,6 +/-0,15
Power corrosponding European standards 18,5 kW (26 PS)
4500 1/min
Maximum torque 47 Nm (5 kgm)
2000 1/min







Characteristics

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The shown characteristic curve is achieved with a renewed, used Engine without blower, with exhaust silencer and air filter, sea level.

Using an engine test bench renewed engines are to be tested corresponding to the following chart instead of maximum rpm.
Testing revoluiton
(1/min)		 Time
in
minutes		 Braking load
800-1000 10' ohne
1500 10' ohne
2000 10' ohne

Fuel supply

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It has turned out to have at leasat one fuel filter in the fuel circuit. Not long ago I visited a forum comrade because of my carburator being fucked up (excuse me *g*). He opened the carburator and fell on his back because of all the dirt and stuff inside. Amazing!

Cooling

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The cooling system is only working good when it has been bleeded carefuly. Therefore there is a screw in direction of traffic front and top of the colling radiator (ws 13 M8) and another one at the chiller in front of the car.
But no matter what I did, mine is reaching for the boiling point almost always. The manual says it's ok...
Also important is not to leave the lever at the air filter in the "preheated air" position.

Carburation

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To deal with "Carburation" I am working on a seperate documentation:
Weber 30 DGF 3/150

Clutch

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Torque

Part Thread Torque
(Nm)
Retaining screw of clutch lid at flywheel M6 10
Retaining screw nut of complete lever at disengaging shaft M8 15
Retaining screw of disenganging fork M8 25
Retaining screw of journal bushing of disengaging device M6 83

Changing- and differential gear

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Gear is for professionals! It seems to be someething which can drive you nuts und there is alot to damage.
I shortened the gearshift, besides, because it colided incredibly with my right knee when using the first and second gear.
Said the knee to the club: "This town is to small for both of us..."
I am talking rubish!

Torque

Part Thread Torque
(Nm)
Retaining screw of starter M8 25
Nuts of flexible countermove bracket for disengaging the clutch M8 15
Nut of stud bolt for fastening clutch housing to engine M8 25
Retaining screw of clutch housing at engine M8 25
Retaining screw of gear housing to clutch housing M10x1,25 34
Nut with cotter pin for secondary shaft M14x1,5 49(*)
Nut with cotter pin for primary shaft M14x1 49(*)
Retaining screw for shaft of reverse gear M8 15
Retaining screw for shift-fork M5 83
Retaining screw gearshift lever to bearing M8 15
Self-locking nut of inner bowl of gearshift lever M8 16
Self-locking nut of pulling lever of gear change M6 10
Retaining nut of crwon wheel at differential housing M8 45
Nut to stud bolt of bearing case inside differential gearbox M8 15
Pressed nut of coupling towards wheel centre M18x1,5 ---
Retaining screw driveshaft / coupling M8 25
Retaining screw bearing counterplate M8 22
(*) In case of no match between the clearance of castle nut and the bore of the shaft at requiered torque, the torque is to be increased until matching (angles under 60 degrees).

Brakes

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Don't begrude a new Braking system to you. You will feel mauch more save. I renewed everything except main brake cylinder und brake-drums. This means new pipes, hoses, cylinders, cables etc...
It gives a great feeling to show the technical inspection agency a complete piece of work instead of something half-hearted.
By the way: "new" does not mean "another old one". Some people aren't practi

Torque

Part Thread Torque
(Nm)
Retaining nut brake base plate at steering knuckle M8 29
Retaining nut brake pedal carrier and clutch pedal carrier M8 15
Retaining nut main brake cylinder M8 15
Hose fitting at wheel brake cylinder M10x1,25 20
Retaining screw wheel brake cylinder at brake carrier (front and rear wheels) M6 10
Retaining nut wheel brake cylinder and rear wheel centre at transverse control arm M10x1,25 56
Retaining screw rear brake drum M12x1,5 84
Retaining screw wedging brake carrier M8 15

Wheels

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Some of you will consider to change something with the tires or the rims. Maybe chrome rims or alu rims, wider tires, greater diameter or so...
This topic is to exuberant. So I won't try to give advises in this case. Instead I advise this forum to you: 500forum.de.

I also advise this online shop to you: Onlineshop Markhoff

The series dimensions for the 126 BIS tires are: 135/70 R 13 68 S
The rims are: 4.00Bx13 H2 Steel, bolt circle 4x98, ET 31,5
Wheel bolts: 4 pieces, bolt circle 98, thread: 12x1.25, torque: 7 kpm.
snow chains: rear
Air pressure at full load: front: 1,7 bar, rear: 2,5 bar
Corresponding to the technical inspection agency these values are listed for Fiat 126 A (Fiat 126 and Fiat 126 BIS) since 06/87 and ABE-Nr. 8773/1.

front wheel suspension


Hinterradaufhängung



Torque

Part Thread Torque
Nm
Front wheel suspension
Front wheel bolt M12x1,25 69
Nylon stop nut for retaining of leaf spring at steering knuckle body sill M10x1,25 39
Retaining nut transverse control arm at bolt M14x1,5 49
Nylon stop nut for retaining of transverse control arm at bolt M14x1,5 59
Retaining nut front buffer M8 15
Nylon stop nut for retaining of rubber bearing of leaf spring M10x1,25 49
Nylon stop nut for fastening of transverse control arm bolt at body M10x1,25 49
Nylon stop nut to bolt of transverse control arm im steering knuckle carrier M10x1,25 57
Retaining nut top and bottom of front damper M8 20
pressed nut on the left steering knuckle carrier M14x1,25 (see detailed documentation, p.12)
Rear wheel suspension
Rear wheel bolt M12x1,5 69
Retaining nut buffer of rear transverse control arm M8 15
Retaining nut bearing rear transverse control arm at body M10x1,25 47
Nylon stop nut (flat) towards bolt of rear transverse control arm M12x1,25 78
Nylon stop nut (flat) for top and bottom fastening of rear damper M12x1,25 29
Retaining nut brake carrier and wheel centre at rear transverse control arm M10x1,25 56

Electrics

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Starter

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This is what the assmbled starter (Z.E.M. R76 A, 0,6kW, 12V) looks like.

Disassembly is quite easy:

If you have your starter disassembled for any reason, there are some rewarding things to do: changing the contact coals and cleaning the contacts between magnetic switch and starter and additionaly the electricaly connections. Also removing dirt from places it doesn't belong to is useful. Because I know it isn't funny having to remove the starter later.
Helpful having seen it:

Ignition

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Circuit diagram of the ignition:

And this is what reality looks like. To find in it's hide away behind the carburator:

There are several distributors. Reportedly three. I know just two. Zelmot 3459 A

and Magneti Marelli S 314 A


Contact clearance:
Magneti Marelli 0,37-0,43mm
Zelmot 0,47-0,55mm

Sketches

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Here are the wiring diagrams. Thea are easier to undestand in the printed version.
Around the cooling radiator:

Starter, ignition, power generation

Parking lights, control lamp dimmed front light and long distance light and headlamp flasher, numberplate light, reverse driving light, fog rear light and control light

Horn, front and rear windscreen wiper, electric pump front and rear, heatable rear window

Direction indicating light and control light, hazard warnig light and control light, braking light

Cooling blower, interior cooling fan, electrical radio preparation, fuel and fuel reserve indicator, warning light insufficient cooling water, warning light oil perssure, cooling media thermometer

Parking light and control light, dim light with DIM-DIP-twilightswitch, long distance light and control light, flashing light, numberplate light, reverse driving light, rear fog light and control light

Legend