Yeh your roight for experts they really make you wonder, Im not to sure which way to go, firstly Im not going to riip it apart and then ship it back 2500kms just for them to stuff with it again. I dont know whether to use a decompression gasket to accomodate for the piston pop, or whether to remove every piston and machine them to zero deck height, on the worst piston this means removing 27" from its head, then its all gonna have to be rebalanced ect. From what I can work out these pistons are meant to have 25" deck clearance so god only knows how much has been decked, If I go with a decompression gasket it will still keep my compression around 10:1 if I machine the pistons and go back to zero deck height I get about the same. I have my own lathe and mill so if I was to go down the machining path Ill do it myself. Is there any downside that anyone knows about using a decompression shim and standard head gasket. How can I work out how much decking has been done so far
Any info is really appreciated
Thanks Steve