what is the psi at idle normally?10psi?30psi at w.o.t.?motor is a2011 150 etec on 18 ft ranger boat! hot horn sounded off for a seconds then went off.water temps in 40s on ariver.checked tell tale stream it was flowing but not really squirting out like ive seen on other outboards,but i never seen the etec stream it was more like soda pouring out of a bottle then a squirt!!watched a 115 etec on garden hose(muffs)and it to was only pouring out.after horn went off stuck hand in tell tale stream seemed very warm but not scalding hot!!horn only sounded off about 3-4 seconds and went off we were going 1/4 throtle 15 mph upstream in river with motor tucked in for 1-2 mile stretch but checked the intakes they were clear-but last fall motor was switched to the gold oil the top grade stuff-dealer said to run most of mid grade oil out then just fill the oil tank with synthetic gold stuff!!just wondered if oil changeover has any effect on engine???ran boat and didnt have any more issues after that episode.no weeds in river but couldve got into sand or muck last year,and this was first time out this year.fished next day no issues.ran boat at all speeds. did ding stainless steel prop second day out got in shallow gravel area because depth finder wasnt showing proper depth!will the prop affect the gear box seals???it was very minor damage on the edges just concerned -new boat owner-8 hrs or so on 150 etec!!boat has the water psi gauge whats normal psi???would flushing on hose help??any input or comments or observations greatly appreciated!!!!
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Did the HOT or TEMP light come on or was it the CHECK ENGINE light? A HOT light could also mean a restriction in the EMM and fuel pump canister cooling system which is your tell-tale water outlet. Your motor uses a high flow low-pressure tell-tale as compared to the smaller diameter high-pressure streams that you see coming out of other models of outboards.
Here is chart of normal water pressures:
"There is never just one thing wrong with a boat";
-- Travis McGee, main character in a book series by John D. McDonald
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.