SN OL675215. If I open the endcaps on the heat exchanger, what comes out? Raw water or coolant?? I was reading the manual, but the answer was not clear to me. I want to check for debris in there...
Thanks!
I have replaced manifolds,3" risers, and elbows on my OL677287 5.7 Horizon, and I have read to retorque the manifold to head bolts after bringing up to full temp. Does this also apply to the riser/elbow retainer nuts? I used the graphite gaskets on the job, if that makes any difference...
I have twin Horizon 5.7's FWC Ser#OL677287 with factory fresh water flush kits installed. My first thought was that obviously you close the seacock and hook up the hose and run the engines for a while and flush out the manifolds and risers. However, I rebuilt the raw water pumps this weekend...
...that is the question. Again.
I have read the Service Bulletin from Merc about the "new" graphite gaskets, circa 2001, that are to be installed dry. However, a search on this site and many others has turned up multiple posts from boat owners and marine mechanics who use Perfect Seal on...
After reading through the Manual 24 tune up specs (thank you Fun Times for the link) I notice that the Horizon variant of the MIE MAG 350 Gen+ is not specifically listed. My engine's, SN-OL677287, Merc parts breakdown shows a platinum spark plug (superseded to iridium), however since it isn't...
