I am having a hard time installing the oil distribution line thru the water jacket on my 1951 216.
I can get the copper tube through but there is interference which makes it necessary to bend the tube. This causes a problem when I try to start the threads on the brass fitting. The angle of the fitting wobbles because of the interference making it impossible to start the threads.
Is this interenece normal? Any ideas on what I should try?
Thanks for your help!