Fiat 128

Fiat 128This, the replacement for the 1100 was introduced in March 1969. It was the first production Fiat with a completely new transverse engine (1116cc, 55bhp, cast iron block, light alloy head, sohc with toothed belt drive) driving the front wheels and was available in two and four door saloons and an estate version. It was awarded 'Car of the Year' in 1969.
In 1971 the Fiat 128 Rally was introduced with a more powerful engine (1290cc and 67bhp) and numerous other changes including different gear ratios, a different alternator and battery, different tyres and the addition of a brake booster. It was only available with two doors.

At the Turin Motorshow, also in 1971, Fiat showed a new 128 derived coupe, the 'Sport Coupe'. This had two engines (the 1116cc unit now with 64bhp and the 1290cc now with 75bhp) and two trim levels (easily differentiated since one ('S') had single square headlights, the other ('SL') twin round units). The mechanical parts remained as in the saloon, but the body was all new, based on a shortened saloon floorpan. It was designed in-house by Fiat, whilst Bertone was given the task of designing a 128 Spider, which later emerged as the X1/9.

Fiat 128In 1972 the models were mildly revised, such as the fitment of a brake booster (from the 'Rally' version) across the range. Trim, the grille and other small changes were made. In 1974 the 'Special' arrived which had the four door saloon body with the 'Rally' engine (in this application rated at 60bhp) and numerous other minor changes.

In 1975 the 128 3P (3 door) replaced the Sport Coupe. The most significant difference was a rear end new from the B-pillar back which incorporated a hatchback. The rear seats could also be folded flat to provide a larger load area. Several other details were changed at the same time (new grille, lights), whilst in order to meet more stringent emissions standards the engine was modified (compression ratio raised, combustion chamber modified).

The second series was introduced in 1976 and included many changes. Externally there were new bumpers, lights and detail trimmings, whilst the engines were also modified as were the gear ratios, the driveshafts, brakes and electical system. Internally the dashboard, trim seats etc were all updated.

The following summarises the models produced (in Europe) :

Fiat 128 production line from 1969 :

Berlina 1116cc
Familiare 1116cc
Rally 1290cc
Sport 1116cc ('S') & 1290cc ('SL')
Special 1290cc & 1116cc
Coupe 3P 1116cc & 1290cc
from 1976 :
1100 & 1300
Coupe 3P Special 1100 & 1300

After the Ritmo was introduced 128 production was cutback to only use the 1100 engine, whist in 1980 the Panorama was dropped from the range. Production finally ceased in 1985. Total production was 2 776 000 Saloons & estates and 330 800 Coupes and 3Ps.

In South America the 128 was also produced alongside the 127 which it was closely related to. Continuing in production later than in Europe, the final version was known as the Super Europa (4-door saloon only) and was fitted either with a 1300 (1290 or 1301cc) sohc with 60bhp or a 1500 (1498cc) sohc with 82bhp. This featured a modernised front and rear end treatment, with 127-like lights and a black plastic trimmed tail. It was produced until 1990.

The 128 was used as the basis for several prototypes through the years, including a coupè, the Pulsar, another sort of coupè, by Bertone and a type of beach car, the Teenager.

Back to the top

Technical Details
Driveline transverse engine at frontwith front wheel drive
Engines 1116cc (80x55mm) in-line sohc 4 cyl with 55bhp @ 6,000rpm
   with 64bhp @ 6,600rpm in the Sport Coupé
   with 65bhp @ 6,000rpm in the Coupé 3P
1290cc (86x55.5mm) sohc with 60bhp @ 6,000rpm
   with 67bhp @ 6,200rpm in the Rally
   with 75bhp @ 6,600rpm in the Sport Coupé
   with 73bhp @ 6,000rpm in the Coupé 3P
from 1976, in the new 128, the 1100 and 1300 engines produced 55bhp and 60bhp respectively, both at 6,000rpm
Fuel Consumption 1977 1300 saloon
Simulated urban cycle 28.0mpg / 10.1 l/100km
Constant 56mph 42.8mpg / 6.6 l/100km
1977 1300 estate
Simulated urban cycle 28.5mpg / 9.9 l/100km
Constant 56mph 39.2mpg / 7.2 l/100km
1977 3P coupe
Simulated urban cycle 24.6mpg / 11.5 l/100km
Constant 56mph 41.5mpg / 6.8 l/100km
Suspension front : MacPherson strut with telescopic dampers and coil springs plus anti-roll bar
rear : independent with telescopic dampers and single, transverse leaf spring (3 leaves).
Wheels and tyres (1974 UK spec)4.5Jx13" wheels with 145x13 tyres (saloon, estate, rally and coupe)
wheelbase : 2448mm (coupe : 2223mm)
track (front/rear) : 1308mm/1313mm (Coupe : 1325mm/1333mm)
Brakes front : discs. diameter 227mm
rear : drums, diameter 185mm
front calliper piston diameter : 48mm
rear wheel cylinder bore : 19.05mm
handbrake operating on the rear via a cable
Gearbox 4 speed manual
cable operated clutch
disc diameter : 181.5mm
Steering Rack and pinion (the first time on a production Fiat car)
3.5 turns lock to lock
Kerb Weight Berlina : 805kg; Rally : 820kg; Sport Coupe S : 815kg

Click here for a section drawing of a 128 Berlina, here for a section drawing of a 128 Sport Coupe and here for a picture of the complete 128 drivetrain.

Back to the top

Fiat 128 (1978) extract from manual - click for larger image Fiat 128 (1978) extract from manual - click for larger image Fiat 128 (1978) extract from manual - click for larger image Fiat 128 (1978) extract from manual - click for larger image Fiat 128 (1978) extract from manual - click for larger image Fiat 128 (1978) extract from manual - click for larger image Fiat 128 (1978) extract from manual - click for larger image


Fiat 128 engine bay There are three main areas to concentrate on, the engine (and transmission), the brakes and the suspension and then various other details. These three should be done together since they complement each other, not all of one and none of another !

1. The engine.

Before modifying the engine it is worthwhile filling it with a good quality synthetic oil and fitting new spark plugs. An engine oil additive may also be used.

The first improvements are relatively simple. The air filter can be replaced for an aftermarket item which will help the engine breathe more freely and the exhaust can be replaced for one which will restrict the exit of the gases less.

The main modification (outside of taking the engine apart) is to fit a better carburettor. Either a unit from a larger engined model, or you can buy a special inlet manifold to allow the fitment of other units. A camshaft will also provide a noticeable gain, especially if fitted in conjuction with the carburettor.

Fiat 128 Rally Other things to do should include fitting a cold air intake, a large diameter pipe (minimum 5cm) to provide air from outside the engine bay to the air filter. The exhaust manifold can also be lagged with thermal cloth or tape to keep the exhaust gases hotter (and thus reduce back pressure) and also to keep the underbonnet (and hence intake and fuel) temperatures lower.
The high tension leads can also be replaced with performance ones.

Further modifications require the machining of the cylinder headand/or cylinder block (which will not be dealt with here since it is not normally a DIY job) after which it may be worth fitting an oil cooler. If overheating is a problem due to the increased power output then a small hole can also be drilled through the plate in the thermostat.

Regarding the transmission the main requirement is to uprate the clutch to handle the increase in power and torque achieved though the engine modifications. Friction plates can be purchased with improved materials and heavier duty pressure plates are also available. Whilst doing this it is worthwhile lightening the flywheel.

2. The brakes.

Fiat 128 3P and Berlina racecars Initially it is relatively easy to replace the brake discs with drilled and grooved items, and the pads for a harder compound. The latter should not be too hard (ie no race pads on the road) or they will not function effectively at the normal 'road' operating temperatures. Stainless steel braided flexible hoses will improve the pedal feel and reduce the chance of damage whilst DoT5 fluid (not silicon) will increase the temperature at which it can operate effectively. If the brakes are getting too hot the dustguards can be removed and/or ducts fitted, taking air from behind the front bumper.

If more serious braking is required the next modification would be to increase the disc size. It is possible to use larger discs with a bracket allowing use of the production callipers, or alloy four pot callipers can be fitted.

In order to improve the balance of the car under braking it is desireable to be able to adjust the balance of braking from front to rear (and vice versa). This can be accomplished by fitting a bias valve in the line to the rear brakes, usually in a position so that it can be reached from the drivers seat.

3. The suspension.

The easiest improvement,and the one which will probably bring the single most noticeable change, is to replace the dampers and springs. At the front, everything can be replaced, at the rear the suspension can be lowered by clamping the leaf spring. Top adjustable dampers are compromised, but are good for road and track day cars since it allows the suspension to be adjusted between these two, rather different, requirements. Coil over units add more adjustability and can be purchased outright, or can be made from standard dampers by welding a threaded sleeve to the standard tube.

Fiat 128 Sport Coupe There are then two other main suspension aims; to reduce the flexiblity in the suspension and to increase the stiffness of the car, both of which aim at more accurate control of the wheel movement. To reduce the flexibility it is possible to fit nylon bushes instead of the normal production rubber items, or if perfection is desired the suspension can be fitted with metallic bearings (rose joints / rod ends). Spherical bearing top mounts can also be used. To stiffen the car it is most popular to fit strut braces. These can be fitted to the front and rear. For more extreme cases a rollcage can be fitted.....

Into this category also fall the choice of wheels and tyres. With an increase in power it can be necessary to fit larger tyres (thus requiring larger wheels) but the temptation to fit the biggest possible should be resisted. Consideration should be given to fitting a wider tyre on the front (since they provide traction and steering) but keeping the standard, or a wider but not as wide as the front, tyre at the rear. This will improve the balance of the car.

4. other things.

Other modifications worth considering include fitment of a shift light (and rev limiter if there is not one as standard), higher power bulbs in the headlights (if you are going to go faster you need to see further) and installation of a quicker steering rack.

Back to the top


Fiat 128 brochure The following data refers to the 1978 saloon :

Scheduled maintenance :

Replace air filter : every 10 000km
Check tappet clearances : every 10 000km
Replace timing belt : every 60 000km
Oil & filter change : every 10 000km or 12 months

recommended engine oil : in cold climates (min temp below 0°C) SAE 10W/30, in warmer climates 20W/40
recommended transmission oil : SAE 90 non-EP

engine oil capacity (sump & filter) : 4.25 litres
transmission oil capacity : 3.15 litres

Spark plugs : Champion N9Y or Bosch W200T30, gap 0.5mm to 0.6mm

tyre inflation pressures (front/rear) : 1.8bar / 1.7 bar

Back to the top

Buying / Selling

Some tips to do before selling : (they may seem obvious, but most people don't do them and thus are in a weaker bargaining position).

Tidy inside the car thoroughly : hoover the floor, empty all pockets, ashtrays (wash), glove compartment etc..., wipe the trim with a damp cloth, give the cockpit a good airing to get rid of any odours ! Reset the trip meter to 00000 - it is a pleasant (subconcious) surprise.

If the car has been standing give it a good run - this will clear out the engine (reduce exhaust smoke), put a shine on the brake discs Fiat 128 cockpitand loosen up any joints that may otherwise make some noises.

'Back to black' products are very effective at temporarily restoring bumpers and trim. This makes a big difference to any car. Do it a week before you expect people to view the car, otherwise it may be a bit too obvious !

Jetwash under the car, especially under the engine and in the wheelarches. The prospective buyer may be an enthusiast, and this makes it easier for them to see what they want to check.

Obviously wash the car and clean the windows !

If you are going to buy a car always check the following :

Firstly check the bodywork. Pay special attention to the wheelarches (inside if there is no plastic splash guard), suspension and engine mounts, sill, door pillars (check for sagging doors), scuttle panel and the floor (doors, bonnet and boot/hatch are also susceptible, but are more easily replaced). If a sunroof is fitted check around the edge for signs of rust. Check that there are no mismatching panels, large areas of discolouration or signs of fresh paint (compare inside the engine bay with the external body colour), all of which probably indicate accident damage.

Check for a damp carpet or the presence of mould - if the carpet is damp then the floor is almost certainly corroded.

Check the main electrical functions - wipers, lights, etc... try putting the main beam and wipers on at the same time. Check the headlight reflectors for rust.

Fiat 128 3PCheck the brake pedal does not go to the floor if pressed hard for a long time and check the gearchange for clean engagement.

The engine should be run up to temperature, check the exhaust for smoke, the condition of the breather (look for mayonaise), the condition of the oil filler cap (again white deposits can indicate head gasket or other serious problems or the use of the car only on short journeys, another bad state of affairs) and the colour of the coolant (preferably not thick or dark brown!). Listen to the noise of the engine, then depress the clutch and engage first gear. Whatever noise has disappeared was coming form the gearbox, what remains is from the engine. Also check the condition of the engine oil on the dipstick.The lighter brown the better, if it is thick black then leave quickly.

Check tyre wear, uneven patterns could imply a bent chassis.

Always take it for a test drive. Check that the car tracks in a straight line with no steering input and also remains straight under braking. Find a large open area and complete several lock to lock turns (also in reverse), listening for any noises. Try the handbrake when moving - seized rear callipers will mean uneven braking or no braking.

Generally, the 128 is mechanically pretty good, but the bodywork was weak, especially with the age of the cars now !

Back to the top


An excellent Argentinian 128 website (in Spanish but worth browsing !)

Back to the top

For books on Fiat see our Online Bookstore

There is also a list of all our picture galleries (including museums, motorshows and various events).

Wallpapers/Desktop Backgrounds of numerous Fiats including the 128 are available to download.

128 comment form

Please send your comments on the 128, these will be added to this page for future visitors to read.
Please include your name (or a nickname) and your country. Thanks.

Your Comments

The 128 marked the start of an era of front-wheel-drive. The end-on gearbox and engine mounting arrangement has been adopted by almost every other successful design since. The engineering of these boxy little cars stands proud even after the often-criticised styling is long forgotten, proving that beauty really is more than skin deep.
Fiat 128 Sport Coupe Just as well, since that skin is all too likely to have rotted away by now... The most dangerous part of 128s is probably the front anti-roll bar triangular mount to the body - a perfect rust trap. Less important but still major is the front floorpan, which starts off in life as double-skinned, but sometimes this is hard to tell for sure. Before buying any 128, jack it up with a trolley jack under the front of the engine supporting beam. If the doors still open and close nicely, buy the car. Rust holes in door bottoms, boot corners, top of front wings etc. are common but minor problems. But if the body flexes when jacked up, you have rust in the floorpan, inner screen pillars, inner wings and at the very least misaligned doors from a smash (which are VERY difficult to put right...)
Engines respond well to a quick'n'dirty rebuild - new rings, decarbonised head, valve grind and new gaskets throughout. Bore wear is not often excessive because of the very short-stroke (therefore low piston speed) design. The massive crankshaft and bearings, oil pump and simple direct-acting valvegear also last well, although setting the valve clearances needs the help of an agent.
Gearboxes don't seem to be particularly strong (by comparison.) Expect poor synchro on second or third gears. Check for whining in top gear or irregular churning or growling noises at low speeds - if either of these faults exist, swap the gearbox. All parts are available at reasonable cost (eg. synchro hub is about the price of two cheap new tyres, and well worth doing) but bearings sets are expensive. Using engine oil in the gearbox is a good cheap option - DON'T use EP-grade oil.
Wheel bearings are difficult to change, requiring a press, although the sealed bearings themselves are cheap. CV joints and driveshafts in these cars last very well, but check the inside boots regularly for leaks, as these hold the gearbox oil in. Failure can lead to expensive bearing damage!
Electrical equipment (starters, alternators etc.) is readily available being shared with other Fiats - it is also easy to repair and solidly engineered. For example, the radiator fan motor is particularly efficient and sturdy. Electrical problems on the whole are most likely related to poor connections. In particular, make sure the transmission has a braided strap coming off it, fastened to the steering rack bracket - this acts as the ground for the heavy starter current. If the strap is broken, the current flows through the clutch cable... over time, this leads to breakages at the clutch arm end!
Fiat 128 Brakes are a very common FIAT design and parts are thus readily available (and cheap.) Remember to check the rear brake shoes before re-adjusting the handbrake - the rear brakes do very little work and are prone to severe neglect! If the master cylinder is removed, check carefully the protrusion of the push-rod from the brake servo, which should be 1.05-1.27mm for early cars, and less than 1mm for later cars. More than this will result in brakes not always working (M/C not refilling properly) or brake binding and locking on.
Interior parts are cheaply designed (although more solid on early cars) and often difficult to repair/replace. In particular the dashboard - very few crack-free examples still exist! The all-vinyl seats fitted to earlier cars (later cars are much better) are very poor compared with modern standards, although if they are re-covered properly they can still be comfortable and attractive.
Facilities such as heating and lighting are adequate, but the front quarter-light windows are a notorious problem on saloons and likewise the rear side windows on Coupes - the attachments fall off the glass. Loctite glass bond works - for a while. Try 'Super Glue'! Another small problem in this area is the heater water valve, which sticks 'on' and relies on a cable pushing to turn it off (weak.) Try using penetrating oil spray, otherwise obtain a new part. Also, grease the control cables thoroughly and make sure the cold air flap closes fully or there won't be any heat...
Before winter sets in, clean all the ignition components and consider fitting an electronic ignition box (in series with the points.) This allows the points to last much longer. Set the gap using a dwell meter - 55 degrees - and then set the timing at idle speed to 10 degrees BTDC. Shine the timing light down between the yellow plastic belt cover and the side of the engine bay - you should see three bumps on the cover and a nick in the V-belt pulley, which should be lining up with the first bump on the left. Slacken the single nut at the base of the distributor and move it as necessary. Remember to have set the points gap first, since this greatly affects the timing.
In the winter time, the air cleaner needs to be on the warm air intake, and the engine may require a few moments running before it will pull smoothly.
Finally, remember that the 128 uses a short-stroke engine of 'modern oversquare design'. It is built for Italian driving, and you won't wreck it by driving it hard! Quite the opposite in many ways. Of course, a neglected car can be very dangerous at any speed, but assuming the car is in good order, brisk usage will keep the engine, brakes and exhaust system in good condition. Particularly avoid running more than 5km with the choke on, use the brakes hard once a week or so, and avoid short journeys where condensation rots out the exhaust. (Alex S., New Zealand)

I have a '73 128 coupe, the third one I have owned (actually, one was a '74 parts car). I have concentrated on the suspension and drivetrain mainly, with cosmetics taking a backseat for now. When I bought the car, it was completely roached. The only thing it had going for it at that point was it was straight and (barely) driveable. I have since added new suspension, Konis with coilovers up front, and new a-arms and a de-arched rear spring out back. Brand new brakes have been Fiat 128 Rally fitted, even a new rear proportioning valve. New Speedline "Iron Cross" wheels (X/19) and Sumitomo 185/60/13 tires have been fitted, and I installed a rebuilt cylinder head, DCOE Webers, and a Daytona header I saved from my last coupe. The best upgrade I have made so far has been a 5-speed conversion, from a Ritmo. I had to make some half-shafts for it, which unfortunately are starting to twist, so I'll have to have some new ones made. That stopped the car from screaming it's lungs out on the freeway! I can't understand why Fiat under-geared those torquey engines. Like my last coupe, it's a ball to drive. My favorite sport is to find a kid with a tarted-up Honda, which locally are of the stickers and huge exhaust variety, lowered onto the bumpstops, most of which are slower than stock, and I like to tickle them up to their top speed, then pass them calmly sipping a soda! Psychological warfare like that has a devastating effect, especially when they have their girlfriends on board! (Ross W.C, USA)

I bought a 128 3P in 1985 for £600 and had it for nearly 4 years. It is the best car I ever owned and I wish I had never sold it. It sounded great & handled like a Kart - point & go. It's the kind of car that when driving it you end up smiling and modern cars just don't have the same effect. It makes you feel like a great driver and when getting in many other cars all you see & hear is blandness. This was one thing the 3P wasn't and could never be. One day I want to find another like mine and relive those days 15 years ago. I want to be able to show all those I have bored with stories of its greatness what I mean & hit 7,500rpm once again. (Terry, UK)

I bought a 128 in "72. My first new car. Drove it 100,000 miles all over the US and part of Canada. Finally traded it when my first child was on the way and a/c was needed to make it through the Texas summer. I've owned a bunch of new cars through the years, but have never enjoyed driving any car as much as that old 128. There was really something special about that car. My fantasy, like Terry's, is to drive one again. But, alas, there aren't many left here in Texas and I fear I will have to settle for happy memories of the car I never tired of driving. (Patrick)

I am a proud owner of a FIAT 128 mod. 1973 berlina. It was given to me by a relative. Although it is almost 30 years old, it is still capable to move fast. Its sound is simply adictive. One year ago carrying three other persons I managed to reach a speed of 100 km/h leaving behind in acceleration more powerfull cars. For a car aged 30 years and of only 1.116 cc it is an astonishing achievement. My FIAT is a piece of my heart. (Nikos, Greece)

I owned a1971 128 2 door in a lawn mower green type colour back in 1975. I adored it, for an1100cc engine it sounded and drove like a little racing car and loved being thrashed . That little car never let me down and always started 1st time no matter what the weather was like. Later on in 1981 I bought a 1972 one in blue, that went like a rocket too but one day on the M62 motorway the entire front end of the car tried to part company with the rest of itself due to terminal rot in the front floorpan and chassis rails. what a typically sad end for a Fiat of the 70s, engine still like new but body rotton to the core. I now own a new grande punto it is clinical and nothing like my lovely old 128s were like to drive they were proper little drivers cars with a real heart and lovable character. Cheers and congrats on a great website (Mark, UK)

I had a 76 and 2 79s and the three were great cars for been 1.3 engines. With some modifications you can go side by side with any modern car. The only bad thing of the 128 is that the chasis rips off with the extra power. Im 27 and 8 of my 9 cars were FIATs and now I own an HGT BRAVO. (Sebastian, Argentina)

Fiat 128 Estate

Use the buttons at the top to navigate further, or 

Back to the top



Copyright © 2000 to 2008 CarsfromItaly