Technical Repair for fun

[vwjohn]

Hi
I'm new to this forum, so sorry for any errors of rules etc. Also I am using Google translate. That explains sure my little strange language.
I wanted to show ongoing engine repair, which will be finished in a few days from now. I have yet to receive a few spare parts.

It's a Fiat Punto 1.1 S 1997 (engine 176B2000) with blown up engine.
Head gasket gone and two pistons gone (burnt hole in one) - "It is an engine for the dump" says all. But of interest and curiosity and for fun, I decided to try if I could save this engine.
Here it must be said that if this fails, then I have bought another complete engine from a scrap dealer.
Here are a few pictures so far.

More pics comes if allowed

/John

 

[vwjohn]

oh - I must have at least 5 post before more pics

 

[Noddy]

I would keep the conrod and just change the piston crown. The will save the need to measure the crank and have new endshells ect. Good luck.

 

[blu73]

:wave: welcome to FF John.

 

[vwjohn]

I changed two pistons (you'll see why when there are more pictures) - honed cylinders and new piston rings. Bearings seem alright so not changed. Head machined, valve grind and new gaskets.

 

[vwjohn]

I need to find the temperature switch for model with lamp (to-late-lamp) - can only find it to the gauge. Will try to ask FIAT today.
Does it have a partnumber?

/John

 

[vwjohn]

The piston from cylinder 1 and 4 changed. 4 is clear and the number 1 on the way to the same problem, so it was also removed. After removing it no doubt - new piston.
Then I also remove the piston 2 and 3 They need only new rings and honing

 

[vwjohn]

Piston 1 :

 

[vwjohn]

Piston 4 :



Old and new piston :



Head before :



Head after machined and cleaning :

 

[vwjohn]

Ready for head to go on after honed cylinders and 2 new pistons and new rings all around :



And head mounted in place. Tension after spec.



Valve cover and inlet manifold back on :

 

[vwjohn]

Yes - I got the right temperature switch from FIAT

 

[blu73]

good work, nice to see things being done properly so much shiny metal

 

[flisko]

look how shiny that new piston is

 

[staffordmike]

Nice work, it looks like you're doing a good job.
Crikey, a holed piston on a liquid cooled four stroke! I've holed a two stroke motorcycle piston before, but that was on an air cooled bike with no temperature gauge. I'd have thought the clouds of steam and temperature reading would have prompted a halt to proceedings before such catastrophic damage!

 

[blu73]

so many fiats are abused.... and i would guess that as john has bought a new on/off temp light sensor that this is from a punto without a temp gauge It is pretty random for a normal FIRE engine to have done that though i will concede - but i have seen turbo converted FIRE blow holes in pistons when not fuelled properly

 

[vwjohn]

Yes it is the Punto S with only a lamp comming on if to hot - no gauge.
I entend to change that when i find a complet set of clocks with temp guage and rev counter from a SX model.
But first thing is to make it run

/John

 

[flisko]

called part shop and she said its around 30 eur per piston and 6 eur per valve, i wonder how much you paid approximately

 

[vwjohn]

I did not put in new valves - i only grind the old ones.

A new complete (with rings) piston for the 1.1 engine :
http://www.autodeleshop.dk/mahle-original-2670343.html

A new set of piston rings :
http://www.autodeleshop.dk/mahle-original-2670346.html

All for pistons and rings and delivery 820.00 DKK - must be about 109 euro
Then ofcourse a new head gaskit set.
I dd the machined job on the head on my job so thats for free.

/John

 

[vwjohn]

YES ! - now its running
Wich i could upload a litle video I took of first start


/John

 

[blu73]

good work