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Old 29-02-2008   #31
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Re: Uno Engine Swaps

Not had it long, will have to post the engine no , see if anyone can recognise it. Not worried about too much work, just dont want to do any more on the chassis , if the diesel lump is different. Main thing is the gearbox dimensions. This one has engine/flywheel/clutch mounted to the Dnepr box and drive shaft. Are the Fiat gearboxes/ bell housings common for petrol and diesel ?
Gotta run now but I'll be back. Sure I heard that somewhere before.....govenor !
Be lucky
Gary
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Old 01-03-2008   #32
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Re: Uno Engine Swaps

Quote Originally Posted by Camogary View Post
Are the Fiat gearboxes/ bell housings common for petrol and diesel ?
Interesting project.

I very much doubt the gearboxes are compatible. From the picture you have there it looks to be a FIRE engine which is petrol, I very much doubt you will be able to fit a diesel box to this, totally different engine, expect the bellhousing to be different. Are you actually going to have space in that frame?
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Old 01-04-2011   #33
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Re: Uno Engine Swaps

Hi everyone, just finished a 1242cc punto 75 engine swap into an uno...however its not exactly a straight swap as everyone thinks....

first - the flywheel's PCD is slightly smaller...the holes need to be drilled bigger to correct this.

The exhaust pipe sits too close to the body due to the head being slightly bigger....a 1cm spacer fixed this

The starter needs a bit of grinding down on a side of the body otherwise it wont fit

the good news....

Mounts, gearbox, shafts...everything fits perfectly....

If you want to maintain a carburated version like i did, the distributor fits nicely but...there's no eccentric cam for the fuel pump so an electric pump is a must...

For the time being i'm using the standard 45 manifold and carb....( yes the top 4 holes for the manifold dont fit but its not a prob since i used a couple of custom metal plates to fix everyting in place.... This setup does result in a massive power loss but i have a set of 4 kawasaki carbs complete with a custom manifold waiting to come on to the engine...

Still running the 45 setup for testing purposes since i can vouge on functionality of this carb....

aiming for a good 90 hp with the independent carb setup....fingers crossed....



Pics attached:

1 - Engine as bought
2 - Engine reconditioned, all seals and gaskets, pumps and hoses etc renewed. Internal condition checked especially cylinder bore and valves.
Took me a whole day to go from 1 to 2
3- Old engine and gearbox out of the car
4 - Conversion complete a full day's work to carry out
5 - The uno...11 years in my care
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Last edited by Hyperdart; 01-04-2011 at 16:54.
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Old 02-04-2011   #34
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Re: Uno Engine Swaps

Quote Originally Posted by Hyperdart View Post
Hi everyone, just finished a 1242cc punto 75 engine swap into an uno...however its not exactly a straight swap as everyone thinks....
Very nice Uno Hyperdart, you must be proud!

Thanks for the post, maybe you should do your own post detailing the work you did more? Also, what pump did you use?

Did you use the Uno gearbox & clutch on the Punto engine? Why didnt the Uno starter fit the Punto block?

I`m guessing you mean the downpipe passed too close to the sump/crossmember? Is a Punto downpipe longer to compensate or is the manifold dfferent?

Is there clearance for the bike carbs?

Thanks!
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Last edited by a73uk; 02-04-2011 at 16:37.
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Old 03-04-2011   #35
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Re: Uno Engine Swaps

So let me try to answer your questions:

I used a 'facet' electric fuel pump - low pressure type used for carbs, I limited the pressure further by using a Tee and diverting part of the fuel flow back to the tank. To adjust the amount of fuel that is returned, all it took was a jubilee clip throttling the return line, the tighter the clip the less fuel returned and the higher the pressure. I didnt need any adjustments, the standard weber carb is very tolerant to fuel pressure variations. I obviously used a fused relay to activate the pump which switches on upon ignition.

Regarding the gearbox and clutch / flywheel, yes its all uno stuff...everything fit ok except for the flywheel bolts. You need to enlarge the holes on the flywheel. Dont worry about centering it correctly as it has a central notch that aligns the flywheel irrespective of the mounting bolts.

The starter fits perfectly on the flange but the punto block has some lettering embossed some 3 mm which causes the starter to fit in a distorted fashion .... grinding down some of the thickness on the starter body allows a good fit.

Also the exhaust pipe...i think the head is slightly elongated and the manifold seems pretty identical on the outside....this causes the pipe to pass some 5mm away from the cross member...if the engine vibrates (such as during started) the pipe will thump and clank against the cross.... 5mm - 1cm spacers is all you need. I fabricated 2 x 5 mm spacers stacked upon each other.... The manifold to down pipe studs where carefuly removed using lots of wd40 and a heavy wrench and replaced with stainless steel bolts approx 2" in length.

The bike carbs are a tight fit...but they should fit....on my last attempt they didnt squeeze in by a mere 1-1.5cm mainly due to the internal heater matrix connections and the master cylinder tubing.
Since then I bent slightly backwards the rigid pipe from the master cylinder and shortened the custom bike carb manifold by 1-2cm....I havent tried them on but they should fit....fingers crossed....

In case they dont...I'll get a punto manifold and throw in a standard weber .....
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Old 03-04-2011   #36
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Re: Uno Engine Swaps

Good stuff Hyperdart. Good practical tips. The issues you have faced are familiar to those who have used this engine in a Panda or Cento including starter, block being 1cm higher, etc.

Why did you not use the Punto flywheel and clutch?
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Old 06-04-2011   #37
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Re: Uno Engine Swaps

Basically i knew my gearbox was in good shape so i didnt buy a punto box... also the punto box requires that i change the gear lever due to the linkages being replaced by cables...and i didnt want to do that....

Now i'm planning to fit a set of 257mm tipo TD brakes and the job should be ready....

Also i managed to run the carb setup...here are a couple of pics
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Old 06-04-2011   #38
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Re: Uno Engine Swaps

Nice. Looks like an unusual set up. About the Punto flywheel; I would have thought the flywheel and clutch would just work with the uno box and release bearing. Certainly does with the old panda. All the smaller engine (SOHC/FIRE/OHV) clutch splines from the era are the same.
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Old 12-04-2011   #39
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Re: Uno Engine Swaps

hello Hyperdart
First I would like to thank you because your subject has advised me and encouraged me to do as you did.
but my flywheel and the starter fited in my gearbox good without any modification.
and i fited my exhaust pipe good with no prblems
This may be due because the car industry is not Italian and its Polish
model 1998 or i got other Engine i think my new Engine is punto 70 not 75 but it look the same as your pic
But the problem is that I feel that the motor does not give out all its power
i think because we fited the old carb for the 1.0 Engine
and I want a solution to this problem
thx Hyperdart
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Last edited by ahmedfura; 12-04-2011 at 11:11.
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Old 13-04-2011   #40
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Re: Uno Engine Swaps

I think you have what we call the punto 60 engine over here... its the 1242cc with single point injection....the inlet ports are round not oval....

and yes expect huge losses in power with the original carburator....you need an adapter plate and a weber 32/34 for the engine to breathe properly...Ideally fabricate a custom manifold....

I will post the pics as soon as i have this setup running....

Also think about upgrading the brakes.....i threw in a 257mm set from a brava/bravo perfect fit...just 5mm spacing required
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Old 13-04-2011   #41
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Re: Uno Engine Swaps

as the seller told me its punto 70 engine and it look the same one in yor pic and yes its single point injection but with oval ports
and this day was my frist race and top speed was 180km
do u think i can get more?
but i feel the Acceleration was very poor

and i told u befor i instaled my original carburator with its manifold
i need to see a pic for your adapter plate and a weber and your custom manifold if u can plz
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Last edited by ahmedfura; 13-04-2011 at 21:49.
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Old 14-04-2011   #42
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Re: Uno Engine Swaps

http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWNX:IT

this is the adapter plate

http://cgi.ebay.co.uk/WEBER-32-34-DM...item53de69dc91

and this is the carb...

they should fit on a stock punto MPI manifold....

I haven't assembled them yet....since I have not recieved the adapter yet.....

The exhaust does fit but it might touch the cross member thats why i used the spacers....

The starter might be from a different model for example and you might have the 5 speed gearbox, making the flywheel slightly different.
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Old 14-04-2011   #43
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Re: Uno Engine Swaps

ah now i got it i'll go serch in our shops
if i find other carb with 2 door with its manifold we can fit without modfing like the one in the pic i'll till u
and yes my gearbox is 5 speed and my uno not made in italy i have Polish uno and i see some defrent btween my engine and italy uno engine
thx my friend for your hellping
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Old 22-04-2011   #44
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Re: Uno Engine Swaps

Took a new direction and switched to a weber 32/34 DMTL for greater stability and smoother idle....

The manifold is a punto 75 with modified injector holes and custom adapter flange....

A k&n filter to fit the carb and 4-2-1 stainless manifold are in on the way...
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Old 23-04-2011   #45
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Re: Uno Engine Swaps

good work
and now it give more power or the same?
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