(T) Valves noise in Punto HGT

Hey ,
I have a Punto HGT Abarth 2002 in abu dhabi done 150000kms and its still in a very good shape except when its summer here the car goes mad, and break down alot but its properly from the heat.

i had to change 8 valves a year ago when the time belt was screwed, and it cost me alot but now when i drive the car and am in second gear and just floor it, i can hear a noise in the engine its like valves cracking. Actually it happens in all gears.. its the same noise if you driving up a hill in a wrong gear and the car dies on you so u have to gear down..

anyone knows how to fix this?

sounds like pinking, cheap petrol?

i don't think its cheap petrol, am using ULG-95 fuel and i didn't have this problem before changing the valves.. i guess the valves needs tuning or something like that.

Aint sure about the HGT but my punto valves can be adjusted, maybe thats what it needs? if it can be done, but im sure it gos for all MK2 puntos.. Whens last time you gave it an oil and oil filter change?

Are you sure its not the variator ?
Does it sound like a diesel when you start it up ?

This engine has had problems with the timing variator unit. think its on its 4th or 5th redesign. Effected Barchettas mainly as this had the engine before the HGT. Also, timing belt maybe out a tooth. Does it have a noisy tick over?

Andy.

hi all,

i just got a HGT..i am in singapore.

yes it sounds like a diesel upon start up..what is the problem?

or is it standard for a HGT to sound like that as told but the seller?

It does sound as a diesel car at startup, espically in the mornings ... and i did try flushing the engine before an oil change but nothing happened, some fiat mechanic told me as mentioned here its from the variator is it expensive?

in dubhai, its probably crap or low octane petrol.


I found that in teh east (well anything outside western europe basically) the highest octane I could get for my volvo was 93octane, sometimes 96octane, but it drove just like it did on 93 octane (which was *actually* more like watered down piss).


serioulsy look around for some better quality petrol, maybe add some 'octane booster' chemicals to the petrol.


And just for general driving when using this bad petrol, DO NOT use full throttle below 3,000rpm, as it will just 'knock' (makes a sounds like the valves messing up and the engine 'hesitates' and doesn't accelerate as well as it should). this knocking is pre-detonation of the fuel and can cause...

melted heads
burnt' valves and valve seats
broken piston rings
bent con rods
deformed piston bores
scorched exhaust ports


basically, its bad news