check compression, if ok, do cooling parts.
also, make sure crank bolt 17mm is at 94/ft/lbs and not loose.
if the cam time jumps and rad cores some are clogged , together, they make for fast overheat.
seen by spark timing is suddenly retarded, and compression not. 170psi. all 4 and now say 80. bingo.
#1 first check on all G16s
http://www.fixkick.com/All-Pdfs/TSB/89-96crank-bolt.pdf
also, make sure crank bolt 17mm is at 94/ft/lbs and not loose.
if the cam time jumps and rad cores some are clogged , together, they make for fast overheat.
seen by spark timing is suddenly retarded, and compression not. 170psi. all 4 and now say 80. bingo.
#1 first check on all G16s
http://www.fixkick.com/All-Pdfs/TSB/89-96crank-bolt.pdf
http://www.fixkick.com