Not my month engine wise...3 port has now followed the 7 port.

.happily .

.well maybe happily isn't quite the word.

.the loss of compression seems to due to a sudden wearing of the crankpin following the rod change..measures 4.98mm at the base but only 4.82 at the tip..needless to say this has produced some very bad slop in the crank/rod interface department..Bugger! But I was thinking of replacing the crank with a 5.5 especially as closer inspection reveals it to be a gen 4 crank anyway..As I only ran it for a short time the rod/piston/sleeve seem unaffected..Oh and to cap it all the GO factory have apparently delayed the MG66 till august sometime..
So I am sad and motorless