1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 460Get this manual
Quality of the image is intentionally reduced!
EXHAUST MAN IF OLDS REMOVAL
REMOVAL
JRem ve fl me rrestor, ra nk ca se vent lator nd wa te r
coo lin," hoses to th rmos ta housing2D is conn ct ca rbure or li nkagefue inetemp