hi, im new to the forum so hi punto experts!
erm i have a 2000 punto 16v 1.2 and i am through the process of changing the headgasket.
Im having problems finding out the headgasket bolt removal sequence and the torque settings.
any info?
another thing is, how do i remove the rocker cover? it looks built in to me but am i wrong?

cylinder head torques

stage 1 20Nm
stage 2 30Nm
stage 3 90 degrees
stage 4 90 degrees

thanks, by stages what to you mean?
stage 1 losen all the bolts in 20Nm then 30Nm
or is there a sequence for each bolt?
do i losen one bolt on one side then losen the other on the other side?

Undo in opposite orded to tightening by 1/2 turn in sequence
twice once you have cracked the seal you can remove the
bolts in any order after that.

Normall the head would be skimmed before reassembly
as long as it's not been taken to the limit before hand.
tighten in sequence to the settings previously posted.

John

Here is a sequence diagram

Azzam said:

hi, im new to the forum so hi punto experts!
erm i have a 2000 punto 16v 1.2 and i am through the process of changing the headgasket.
Im having problems finding out the headgasket bolt removal sequence and the torque settings.
any info?
another thing is, how do i remove the rocker cover? it looks built in to me but am i wrong?

Click to expand...

thanks for the repies, in your diagram, what does the arrow represent? the front on the engine facing the headlights or the back, facing the bulk head?

also is that the removal sequence?

Undo 10 9 8 7 6 5 4 3 2 1

Tighten 1 2 3 4 5 6 7 8 9 10

Arrow to front

John

The head gasket has to be fitted so the oil supply hole is not covered. My gasket had a metal edge around that hole.

The bolts stretch one heck of a lot so you really should use new head bolts. If one snaps there will be big trouble. Also make sure there is no oil or water filling up the bolt holes. Clean them out properly and oil the new bolt threads.

The instructions will be given on the pack. IIRC mine were like this...

tighten to 15ftlbs
Tighten to 30ftlbs
looson by 90 degs
tighten to 30ftlbs
three stages of 90 degrees

All done in sequence and the loosen done in reverse sequence.

Be careful how much oil is put on the threads
as too much can have an hydraulic effect in
the hole in the block.

John

It also seriously affects the torque figures. Threads should be oiled, but bolt holes should not be full of oil or water/coolant.