I have a TR4 with 2000 miles on professional rebuild. The engine suddenly started to burn oil with pretty good exhaust cloud. Checked compression which is right where it always is at 175 and matches other cylinders. Plug from #1 is very oily and spinning engine without plug blows oily smoke out plug hole. One would expect the usual valve guide, ring, cracked head, loose wrist pin, etc would compromise the compression. Stuck ring would be best guess. Awaiting suggestions.
Thanks, Phil Brooks
Thanks, Phil Brooks