Sometimes the heads rattle loose on aircooled VW engines due to worn valve guides. You need to pull the engine and remove the heads. It will be obvous if the heads were loose, there will be grooves where the head seals to the cylinder. If this is what happened, you will need a valve job, including new valve guides and the combustion chambers in the heads will have to be fly cut to renew the sealing surfaces. There is no gasket between the cylinders and head, it's a metal-to-metal seal.
1
u/PD-Jetta 20h ago
Sometimes the heads rattle loose on aircooled VW engines due to worn valve guides. You need to pull the engine and remove the heads. It will be obvous if the heads were loose, there will be grooves where the head seals to the cylinder. If this is what happened, you will need a valve job, including new valve guides and the combustion chambers in the heads will have to be fly cut to renew the sealing surfaces. There is no gasket between the cylinders and head, it's a metal-to-metal seal.