davebobbins
New member
Hi Guys, Im Looking to get an exta opinion on the problem my 2001 punto HGT has as its driving me mad 
It all started last week when I started to get a tapping\knocking noise when driving, at around 2600Rpm when cold I get a tapping\knocking noise and when hot it happens around 2400Rpm, the noise does get faster with more Rpm but it doesnt do it when im not driving I.E. Revving on the spot and its not really that loud (at least I dont think it is I may just have gotten used to it)
I popped along to the local garage (Alfa, Fiat and lancia Specialists) who thinks it could be Crankshaft shells
They tried topping up the oil as it was at the Min mark (Bit odd as I had topped it up a the week before) When I got home I had a look around under the car and I did find that the sump on the drivers side had a slight leak at the seal (hence the oil loss)
I've had a friend of a friend look at it (an experianced mechanic) who thinks it may be small end bearings, or something else like the cams being slightly out, as the noise is hard to pin point.
But what I couldnt figure out is why it would only make the noise while driving as it any of the 3 ideas (big end, small end, timing) were true would it not make the same noise all of the time? It makes it on flat roads, going up hill and down hill. always at the same Rpm (slightly different when hot or cold) in every gear, but never when standing.
The friend of a friend is popping out in the morning to check the timing and other bits and bobs to try and find whats going on but if you guys have any other ideas for us to try that would be a massive help
It all started last week when I started to get a tapping\knocking noise when driving, at around 2600Rpm when cold I get a tapping\knocking noise and when hot it happens around 2400Rpm, the noise does get faster with more Rpm but it doesnt do it when im not driving I.E. Revving on the spot and its not really that loud (at least I dont think it is I may just have gotten used to it)
I popped along to the local garage (Alfa, Fiat and lancia Specialists) who thinks it could be Crankshaft shells
They tried topping up the oil as it was at the Min mark (Bit odd as I had topped it up a the week before) When I got home I had a look around under the car and I did find that the sump on the drivers side had a slight leak at the seal (hence the oil loss)
I've had a friend of a friend look at it (an experianced mechanic) who thinks it may be small end bearings, or something else like the cams being slightly out, as the noise is hard to pin point.
But what I couldnt figure out is why it would only make the noise while driving as it any of the 3 ideas (big end, small end, timing) were true would it not make the same noise all of the time? It makes it on flat roads, going up hill and down hill. always at the same Rpm (slightly different when hot or cold) in every gear, but never when standing.
The friend of a friend is popping out in the morning to check the timing and other bits and bobs to try and find whats going on but if you guys have any other ideas for us to try that would be a massive help