Fun times
you're not gonna want to hear this!
Quick tinker under the bonnet yesterday over lunch time, to swap timing belt tensioners back to the new one after realising that I'd probably buggered the old one (currently installed) by spraying it with brake cleaner before reinstalling it a few weeks ago (wasn't thinking) which I was hoping would be the cause of my rattling/grinding noise.
Anyway, was putting the new tensioner on, tightening up the nut whilst holding the tensioner taught with a spanner, and in my haste/enthusiasm I sheared the tensioner stud clean off in the cylinder head. :bang:
Completely flush with the head with no exposed threads to help extract it. Fun.
After the nauseating panic wore off I realised the cylinder head would have to be removed to get enough access to extract the stud, and I'd be getting the train to work for the rest of the week.
As I'd only just pulled up outside the house in the middle of the road/culdesac (was meant to be a 2 minute swap), I had to basically parallel park the punto ON FOOT whilst dealing with the camber and slope of the road. More fun.
So then spent around 2/3 hours yesterday getting down to the cylinder head bolts and got the head off, also managing to line up a garage locally who would consider having a look. 5 minute walk and dropped the cylinder head into them in an Asda bag-for-life with some cardboard in the bottom,was told they probably wouldn't be able to look at it til late Monday/early Tuesday but guy seemed confident he could deal with it.
Don't have a drill with me here in Maidstone, and even back at my parents I don't have any thread extraction tools etc. other than the M8 helicoil kit I used for the thermostat bolt holes.
It's probably within my limited skillset to do myself, and the garage will probably shaft me 2 hours labour for a 15 minute job, but need it done quick and was fed up at that stage.
Have been endlessly Googling to find a replacement part for the broken/sheared stud, closest I got was through this thread which gives the part number through
ePer (46548456) but no length:
https://www.fiatforum.com/punto/338702-tensioner-bolt.html
No luck on EuroCarCare website but haven't tried ringing up yet for help
So need to get something from somewhere, was thinking just an appropriately sized M8 exhaust/inlet manifold stud (ones for this engine would be too short) like this
http://www.ebay.co.uk/itm/M8-x-47mm-Manifold-Stud-Pack-of-5-/181299064426?hash=item2a36442e6a:g
n0AAOxyRhBSz-Jj
No I won't be using a new headgasket when I reinstall anything.
No I won't be using new cylinder head bolts.
Yes the timing belt shredding is starting to make a comeback, will be able to investigate further now half the bloody engine is disassembled!
Any help much appreciated, lads at work saying it's time to say goodbye to this car and after yesterday I'm starting to agree with them! But to be fair, this was 100% my bloody fault
Some photos to follow soon
Cheers and regards