hi tony you might try going to a local air port and talk to some of the independent small repair shops ask them if can bring the motor there in the back of a p/u and look in the spark plug hole with there borascope the all should have them I have one I could loan you but shipping back an forth would be way too much just offer them a 12 pack or in your case a couple of pints they will probly be happy to help you worth a try ......ted