Technical Differences in a 1108 punto/seicento engine

[gazzaman2k]

found a few differences on the block....

the pistons are slightly different they have like circle paterns on the punto engine.

the crank shaft end where it bolts to the flywheel the holes are more closer into the centre of the crank meaing the flywheel had to be drilled to fit this.

also the water pump pipe that comes out the punto one sits nearer the water pump side where it bolts up on the seicento its nearer the flywheel side and on the punto lump theres no hole tapped for it to be able to bolt it up.

thats the only differences ive found so far.


gaz

 

[kroozin]

mpi or spi ?

 

[arc]

circle patterns, on the cylinders? immaterial difference it sounds, no dimension differences.

flywheel differences is random, fiat used different PCDs whenever it took their fancy!!

 

[gazzaman2k]

circle patterns, on the cylinders? immaterial difference it sounds, no dimension differences.

flywheel differences is random, fiat used different PCDs whenever it took their fancy!!

same size pistons just it looks like its got valve sized grooves ontop to clear valves if tiing ever snaps?

this is on a SPI punto 55 engine R reg still should work the same though well i hope so

 

[Brooky]

flywheel differences is random, fiat used different PCDs whenever it took their fancy!!

I blumming hope they dont,im hoping to use my flywheel on a 1242 when i get one

 

[gazzaman2k]

I blumming hope they dont,im hoping to use my flywheel on a 1242 when i get one

just drill the holes to 10.5mm and itll fit thats what i done the centre of the crankshaft keeps it in place anyway and the locating pin

 

[arc]

all FIRE pistons ive seen have them valve cut outs in them.

fraid so Tom, might have fun lining them up..

 

[gazzaman2k]

all FIRE pistons ive seen have them valve cut outs in them.

fraid so Tom, might have fun lining them up..

my seicento one had just flat smooth pistons

 

[arc]

turbo'd? maybe they've been machined flat.

 

[gazzaman2k]

hmmm dunno it was just a low comp kit on the car when i brought it?!?! the guy said he jsut bolted it all on

 

[arc]

like i say, never seen flat pistons in a stock FIRE engine. i've seen a fair few, but not them all mind.

 

[Brooky]

the centre of the crankshaft keeps it in place anyway

Not on mine it doesnt, i had to shim it to get it central.had loads of play.all good now

And i didn't touch the centre bore when machining

IIRC my pistons were flat when i swapped the heads over