[slo_eg8]

how do you know its the head gasket and not a broken ring land or an out of spec valve?

 

[slo_eg8]

how do you know its down on compression?

Compression Testing vs Leak-Down Testing | Pegasus Auto Racing Supplies.

 

[slo_eg8]

no. do a leak down test before you start tearing it apart. find out where the problem is.

 

[slo_eg8]

Engine Misfiring | How Do I Know Whether My Engine is Misfiring?

 

[slo_eg8]

sounds like the exhaust valve is shot lol.

 

[slo_eg8]

yank the head, take it to a shop, have them hot tank it, mill it and replace the valve....maybe ask them to lap the rest of the valves whilst theyre there, if you have extra change.
new head gasket, new head bolts, new timing belt, tensioner, and water pump since youre there


napa (down here anyway) has machine shops in some of their stores that can do it

 

[slo_eg8]

or, find someone selling another y7 and chunk it in and hope for the best

 

[slo_eg8]

sure.