Hi previous owner tried to run an MLS on surface finish like the attached. I used a composite gasket and it seemed to hold for 1000 miles but been pushing the vehicle and cylinder 4 failed leakdown test on investigation of why it pushed 1.2L of coolant to expansion vessel. The deck seemed to measure ok before I went at it with 120grit on a 30mm mdf sanding block. Now when I measure end to end I have high spots around cylinder 4 :-( Can now sneak a 2.5 thou gauge if I go end to end across the head. If I put the engineers straight edge before the high spots as shown I then cannot get a 1.5thou gauge in. Is this the ideal candidate to do some scraping? Never done it before and dont want to mess it up anymore. What can i use to scape with anything from toolstation etc
