Piston Protrusion

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Citroen C5 2.2hdi 03/2004

Hi All

I have to replace my headgasket so i've removed the head ect,now i've come across a problem.

When i checked the protrusion of the pistons,pistons 2 and 3 do not come above the top of the cylinder block.pistons 1 and 4 are both ok but 2 and 3 are 1.5mm - 1.8mm below the top of the block.

Please please can anybody advise me of any reason this could happen and how to fix.

Many many thanks Stuart

[kfk]

are those the cylinders that had leakage from the headgasket?

 

Coolant leaking into the combution area will not compress......if this has occured its possible that the conrods may have become bent.

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are those the cylinders that had leakage from the headgasket?

 

Coolant leaking into the combution area will not compress......if this has occured its possible that the conrods may have become bent.

Thank you for your help.

I think this must of been what has happened. Is it a big job to fix or would it be easier to just change the engine?.Stuart

[kfk]

Thank you for your help.

I think this must of been what has happened. Is it a big job to fix or would it be easier to just change the engine?.Stuart

 

 

Shouldnt rule out ithat the crank maybe damaged also, so engine would need removal to be able to repair.

gearbox/flywheel &sump off, undo conrod bolts, piston and rod comes out through the top.

 

'new' rods wont be cheap, new big end shells will need matching to the crankshaft

 

Changing the engine would be easier if you can find a good one correct for your vehicle

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Is it possible to remove the engine without taking out the gearbox.Thank you

[kfk]

No the gearbox will have to come out with it or be removed first