Hi Foc people, Please forgive my ignorance but would grey gasket sealant on the valve cover rubber gasket indicate that it has been off before.
Also where can I obtain feeler gauges that measure 0.11 (intake) and 0.21 (Exhaust) both the minimum gap but mine are extremely close on cyl 1 (only one checked so far) and my gauges are in increments of 0.05mm.
Thanks