Showing posts with label Jaguar XJ6 cylinder head remove lift. Show all posts
Removing the Cylinder Head
Posted by Corey Thomas in Jaguar XJ6 cylinder head remove lift on Monday, July 20, 2009






- Lifting the cylinder head on a 1987 Jaguar XJ6 Series III
Here goes:
- Getting tools ready, extending opening of hood and propping open, and attaching my poor-man fender covers (cardboard) - rolled the cardboard the jack handle to give it a curve making it an easy task for the tape to hold it in place
- Drained coolant and subsequent cleanup since I missed the target - after mopping up the floor, I had a fan running to help dry it
- Disconnect a ton-o-stuff on both intake and exhaust sides - note the exhaust manifolds were disconnected while the intake manifold remain connected - man, this was a lot of stuff which I started to label - I eventually resorted to a lot of pictures
- Tied up all connections with nylon ties, removed the valve covers and the head bolts - one stud was broken/corroded in the block, another was stuck and would take some extra encouragement which didn't work so I ended up lifting the head with the frozen stud in place which I eventually removed with a stud puller and a lot of penetrant
- Broke the head-gasket seal with a bottle jack on each side - 1 between the lip on the block and the head (exhaust side) - 1 with a long piece of wood between the floor and the intake manifold
- After stacking wood under the head, one side at a time, I lifted the head onto two 2x4s cut to fit on the ledge in the fender walls and then waited for a friend to help me get it over to the workbench - the whole assembly head+intake was about 100lbs
- Three issues become apparent: Broken stud means head not clamped down properly; damaged head gasket; clogged catalytic converter
Lots more detailed pictures available here:
- Checking the compression
- Starting work
- Draining coolant
- Disconnecting intake side
- Disconnecting exhaust side
- Disconnecting head
- Lifting the head
- Inspection
Next up, fixing the damaged stud.