Just replaced mine with stainless elbow. $120 on EBay. Jerry Sent from my iPhone
> On Jun 13, 2016, at 10:49 AM, Jean-Francois J Rivard via CnC-List > <[email protected]> wrote: > > Hi Dennis, > > If the overheating comes back you might want to look at the exhaust mixing > elbow. Mine seemed OK until it clogged completely and cost me a pump and hose > too.. If your belt looked overworked that may have been a sign of a clog at > the elbow. I had asked several folks before including a well known mechanic, > everyone dismissed it saying things like: Your boat is fresh water they don't > clog like that etc, etc.. > > Not so. After doing like you and going through everything else I finally > resolved myself to wrestle the elbow out of the boat. It was completely > clogged. The trick to get the elbow out relatively easily is to unbolt the > riser off the manifold and pull all as a unit. When I bought the elbow I > also bought the riser from Mastery, they practically gave it to me as the > have a bunch of take-offs from installs. > > > See the picture of the offending elbow vs new one here: > https://www.flickr.com/photos/133565480@N04/20929831945/in/datetaken/ > > https://www.flickr.com/photos/133565480@N04/20741860288/in/datetaken/ > > > As mentioned is was pretty much completely clogged I could not get any water > through using a garden hose.. No wonder my pump died trying. > > > -Francois Rivard > 1990 34+ "Take Five" > Cumming, GA > > > > > > > > > > > On the trip from Louisiana to Pensacola few weeks ago I was seeing 180-200F > at cruise rpm. Normal is 160F. > > Water out back looked normal. Usually it's a loose or worn belt. If I can > turn the pump pulley by hand then it's the problem. This, in fact was the > case. The pulley turned and I tightened the belt. Still overheated but not > as much. > > Noticed the belt was down in the sheave. That is, the belt was below the > tops of the sheave and there was black residue observed. Signs that belt > needed to be replaced. Did so. > > Also checked raw water impeller. No issue there. > > Still overheating slightly. Pulled the thermostat and replaced it with one > that I had tested that opened at 160F. Still overheating. > > Pulled end caps from exchanger. Saw a couple small pieces of zinc in one > pass. Not bad. (Search "pbase heat exchanger" to see an exchanger with a > really bad zinc issue.) Flushed all passes with blasts of dock water. Zinc > pieces gone. > > Ran it 3+ hours today around Pensacola Bay and out into the Gulf, Temp > stayed at 160F. > > Shot gooseneck several times with IR thermometer. Agreed with temp gauge > within 2F each time. About 162-164F. > > Sometimes ya just gotta chase all the rabbits. > > Dennis C. > Touch? 35-1 #83 > Mandeville, LA > > Sent from my iPhone > > _______________________________________________ > > This list is supported by the generous donations of our members. If you like > what we do, please help us pay for our costs by donating. All Contributions > are greatly appreciated!
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