Carrera 4S Headgasket gone!!
Discussion
The most common head failure is a crack in the head between the oil gallery and the water jacket in the general area of the spark plug bore.
I have not yet experienced and actual gasket failure.
From the cost I guess that the head was indeed cracked.
You can usually see the crack but sometimes it does not go far enough to reach the outside - just inside between the 2 gallery's.
We have not yet done just a head replacement on its own except under our Maintenance Plan (so we didn't charge for the labour - only the parts) and didn't keep a record of the time as there was other work needed on that car. However you could need to strip both sides to see if you can find the crack and then work on - with that side - or you may have to go further and strip it all down to find it with the engine out - so specific prices are hard to come up with at this stage.
We do have stock used heads and if we had completed this repair with a used head replacement it would probably have cost somewhere between £1500 and £2500 + Vat (depending upon what we found during the investigation and what level of refurbishment the customer requested for the head etc).
I hope this helps.
Baz
I have not yet experienced and actual gasket failure.
From the cost I guess that the head was indeed cracked.
You can usually see the crack but sometimes it does not go far enough to reach the outside - just inside between the 2 gallery's.
We have not yet done just a head replacement on its own except under our Maintenance Plan (so we didn't charge for the labour - only the parts) and didn't keep a record of the time as there was other work needed on that car. However you could need to strip both sides to see if you can find the crack and then work on - with that side - or you may have to go further and strip it all down to find it with the engine out - so specific prices are hard to come up with at this stage.
We do have stock used heads and if we had completed this repair with a used head replacement it would probably have cost somewhere between £1500 and £2500 + Vat (depending upon what we found during the investigation and what level of refurbishment the customer requested for the head etc).
I hope this helps.
Baz
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