Boxster head gasket
Discussion
Its white, I have been having trouble with the coolant. I've replace the expansion tank and passenger side radiator but still a small problem with it. Wierdly yesterday I filled it up and the light flashed like it was empty. Then I left the car till lunch time and the light had stopped flashing when I got into it.
Does anyone know of a site where you can look at the engine layout in diagram form? It would make my life a lot easier!
Does anyone know of a site where you can look at the engine layout in diagram form? It would make my life a lot easier!
Edited by paultither on Friday 7th December 10:13
Head gasket failure is extrememly rare and there is usually another explanation for overheating or coolant loss. Smoking is more usually due to breather or air mass sensor problems.
Some blocks were machined accross the face with a cutter that is not as wide as the top and leave a witness mark where two cuts were taken - creating a small ridge accross the combustion diameter - which could lead to leakeage over time - as the thin layer on the steel gaskets, becomes old.
The top of the block also distorts a little and drops a bit with stress relieving - usually at the outside edge on the end opposite the chain camshaft drive.
The interface between the Lokasil preform and the outer cylinder bore also suffers from a corrosive problem.
Most times the head gasket can be replaced with the engine in the car. Some early cars had smaller heads on the head bolts and although they are strong enough to tighten first time - the Torx bit you use to undo them often breaks when trying to undo them again and you then may need to remove the engine to drill them off. Later head bolts moved up to the next size Torx bit and are OK -but there seems no distinction in the spare part number designation.
Baz
Some blocks were machined accross the face with a cutter that is not as wide as the top and leave a witness mark where two cuts were taken - creating a small ridge accross the combustion diameter - which could lead to leakeage over time - as the thin layer on the steel gaskets, becomes old.
The top of the block also distorts a little and drops a bit with stress relieving - usually at the outside edge on the end opposite the chain camshaft drive.
The interface between the Lokasil preform and the outer cylinder bore also suffers from a corrosive problem.
Most times the head gasket can be replaced with the engine in the car. Some early cars had smaller heads on the head bolts and although they are strong enough to tighten first time - the Torx bit you use to undo them often breaks when trying to undo them again and you then may need to remove the engine to drill them off. Later head bolts moved up to the next size Torx bit and are OK -but there seems no distinction in the spare part number designation.
Baz
If you look into the front air intake, what is the radiator looking thing at the front? I had one side radiator replaced but this part, which is in front of the main radiator is still old and full of dirt? Sorry for the rubbish explanation! Can you help me identify it?
Edited by paultither on Friday 7th December 10:30
No - the aircon condensor has a very thin oil in it and gas.
They very often get hit by stones or corrode at the far corners where leaves and oher crap gets caught. There's a small gap between the air con condensor and the rad which is usually full of mulch!
When you say 'definitely has a leak' what do you mean?
You could just be describing an airlock.
They very often get hit by stones or corrode at the far corners where leaves and oher crap gets caught. There's a small gap between the air con condensor and the rad which is usually full of mulch!
When you say 'definitely has a leak' what do you mean?
You could just be describing an airlock.
The drivers side air con condensor has a leak. Probably through stones but if you look at it after a drive there is definite 'wet patch' from it. Just a small amount, I was wondering whether this was a contributing factor to the coolant going missing but obviously not if the two are not related.
It seems to have settled down at the moment anyway, fingers crossed!
It seems to have settled down at the moment anyway, fingers crossed!
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