I dread starting this one, but I think I have to.... About a month ago I overheated my boat....New daddy brain...Left the fake a lake on and ran her around for long enough to see 210 on the temp gauge. Immediately shut her down, but ever since she's had an small idle surge. I haven't had her back in the water, but have been trying to tune her on the hose and I can't seem to get this resolved. On the hose, without any load, my temps and oil pressure seem normal. Prior to overheating I was trying to chase down a poor idle. I'm not an engine guy!
My plan is to do a short lake test this weekend and see what the temp does.... I cant get at the spark plugs for a compression test without removing the mani's at which point I'd be inclined to just do the head gasket's. I'm wondering what the other dead obvious signs of a blown head gasket would be? Could the idle surge simply be the carb that's been acting up all year?
Recent tune ups include: fuel filter (will do another this weekend ), points, cap, oil/filter, carb rebuild 2010 ( but did run the boat outta gas since I suspect picking up some varnish from the tank in the process)
Thoughts??