After impeller & water pump went out out my 97 OMC/Sunbird/Coral/Volvo/Penta I/O 4.3GL Vortec (Yes, all these names are on my boat) I went thru the usual complete "head job".<br />This lasted 2 days . . .cylinders filled up w/water again!!!<br />I'm thinking manifolds & risers but can't find any...
