Peugeot 106 GTI Low Compression Causes

[oakdale]

A head gasket blown between two cylinders can cause severe combustion knock, but this situation usually deteriorates quite quickly, so I doubt it's the cause of the earlier noise, but it is possible that it is.

No one can really know what the cause is over the internet, but I'd first take the head off and see what you find.

[Old Merc]

I`ve worked on Peugeot engines for years and have seen a number of head gaskets fail between 2&3 cylinders on this 16v Tu engine,in most cases this was due to overheating at some stage in its past?This TU is a tuff little engine and rarely gives trouble.Big ends and pistons never go,and will only fail if the engine has run short of oil.I would go for a headgasket job and have the head skimmed at a machine shop.

[Locke]

Old Merc said:

I`ve worked on Peugeot engines for years and have seen a number of head gaskets fail between 2&3 cylinders on this 16v Tu engine,in most cases this was due to overheating at some stage in its past?This TU is a tuff little engine and rarely gives trouble.Big ends and pistons never go,and will only fail if the engine has run short of oil.I would go for a headgasket job and have the head skimmed at a machine shop.

Thank you.

[Kitchski]

They're easy little engines to work on mate, but if you're not confident book into a decent local indy to have the bearings checked out first if you're not sure. HGF can give a knock, but I've certainly never experienced it, but like it's been said you can't tell over the internet! A decent garage won't charge too much to whip a bearing out....it's not hard or time consuming.