Yes.
No you do not.... the valve cover only bolts to the head, and the head bolts to the block... True- these are two different jobs. When changing your valve cover gasket you may just want to ensure that your head bolts and lifters are still torqued down properly. Otherwise, DO NOT remove the head gasket if you simply want to change the valve cover gasket. when replacing the head gasket you should replace the valve cover gasket and may need to (depending on make & model) replace the egr gasket, intake mainifold gasket, and exhaust manifold gasket ...but not the other way around. If your replacing the head gasket ask your local auto shop if they carry a head gasket kit that includes everything necessary in one box...but if your just changing the valve cover gasket then just change that.
It requires replacing the head gasket.
It is a good idea, most the time you blow a head gasket the head will be warped.
Average cost to replace a head gasket is $1000
If this is a 4-cyl, it is a very in-depth process to replace the seal...removing motor mounts and the majority of engine components to be able to pull the camshaft. If it is necessary, follow instructions for replacing the head gasket on your model. You can replace the seal at the point of removing the Timing Belt.
Depends on who performs the repair and if the head needs resurfacing or replacing. Get estimates from trusted mechanics.
shop vac
Your cylinder head gasket needs replacing.
You can change the head gasket by removing the valve cover. Remove the gasket and clean the gasket surface. Put the new head gasket on the cleaned surface.
It could, if the old gasket had failed.
How to change head gasket on a harley sportster motorcycle?
I am currently changing a head gasket in a 93 Toyota 22re. I'm willing to share info on the process. I had to grind one of the head bolts off to get it out, I'm also replacing the timing chain.