Red light!

D

Dreamer

New member
During a short leg of todays cruise from Shillshoal to Kingston, the Port engine shut down because of an overheat alarm. After arriving on one engine, the now cool BF150 started up OK but repeated the alarm cycle almost immediately after start up.


The pee stream is strong, the Honda's that is. The thermostats looked clear but I took them out to test the engine without them. The alarm returned after a longer wait, 2-3 min. All connectors for the 3 temp sensors are clean and shiny.

We're looking at a 5 hour putt home on one engine tomorrow. So I thought I'd throw this out there. Does this sound familiar to anyone?

Thanks in advance.
 
Might as well troll, the coho are in thick! It is the Edmonds coho derby tomorrow so you will have some traffic for sure. Good luck the motor!
 
I saw you way off in the distance on your cruise home. Hope it was enjoyable despite the motor troubles. My main motor is dead for the year so I am out having as much fun as I can on the kicker. Enjoy the water any way you can!
 
Actually, it was a 5 and a quarter hour ride home due to some adverse currents in the sound.

I tend to agree with Charlie about a bad temp sensor. The BF-150 has three temp sensors. They appear to all be the same part number. I have 3 known good sensors on the Starboard engine. So, tomorrow I'll start replacing the sensors with one at a time off the other engine and see what happens. In case that's the answer, I've ordered a new one and 4 new thermostats although they still operate normally.

Then in my spare time, I'll replace the Starboard water pump which gave up at Bremerton. It never ends :disgust
 
Upon further review, of the Honda manual that is, I found some resistance values for the 4 not 3 temp sensors. All 4 on each engine were in range. When you have an overheat situation that goes away, like a plastic bag over the intake, it's stored in the processor memory until it's erased. After clearing the memory by disconnecting the battery for 5 minutes, the engine started and ran normally!

A sea trial will be necessary before I completely trust it but it ran for a half hour on the earmuffs. :lol:

The fresh water pump replacement went a lot easier despite being buried deep below by the gas tank.

Nice to have those two chores out of the way. :thup
 
Great to hear it sounds like it is fixed Roger! Cost of repair (nada) was good news too. Hopefully all will prove to be fine with an on the water test and then all systems are a go for Lake Powell.

We got home this afternoon after spending last night on the dock at Fort Flagler across from P.T.

Take care,
Dan, Tanya, and Hannah on C-Renity
 
Roger, good to hear you made it back safely. I came back from Friday Harbor this morning, and was wondering if you made it OK. I was tempted to go across diagonally, on a slow cruise with a 90'er going to Bainbridge, but the crossing was OK without him knocking down the waves.

Good to hear you got it sorted out, and you get a boat ride again on top of that. Hope the rest goes easy.

Harvey
SleepyC :moon
 
Dreamer":2tbfy5od said:
Upon further review, of the Honda manual that is, I found some resistance values for the 4 not 3 temp sensors. All 4 on each engine were in range. When you have an overheat situation that goes away, like a plastic bag over the intake, it's stored in the processor memory until it's erased. After clearing the memory by disconnecting the battery for 5 minutes, the engine started and ran normally!

A sea trial will be necessary before I completely trust it but it ran for a half hour on the earmuffs. :lol:

The fresh water pump replacement went a lot easier despite being buried deep below by the gas tank.

Nice to have those two chores out of the way. :thup
Click to expand...

Interesting. I would have thought that it would clear after just turning the ignition off for some period of time. That way, if the problem was still there when you restarted it, it would alarm again... And, if it was gone, it wouldn't.

Wonder how Suzuki does it?

Charlie
 
Just to update those interested in this. The in the water test went well for quite a while. Then the dreaded alarm went off again. We headed home, bagged the Lake Powell trip and waited for parts to arrive.

Just to pass the time, we took a 4 day trip to Eastern WA and saw some country we had not visited before. Smokey there but a fun trip.

I swapped processors side for side to be able to determine if one of them was at fault. I replaced all thermostats and the 1 temp sensor that had broke during removal. The next test drive went much better. We circled Sequim Bay for an hour at 21-25 kts (folks must have thought we were nuts!) No alarm or complaint from either engine.

Just to pinpoint a cause, I heated the T-stats from the port engine. The one that is supposed to open around 150 deg. opened at 175. Guess I should have checked them first. :oops:
 
Great to hear you got to the root of the problem and it was nothing too extremely serious.

Hope you enjoyed your brief visit to eastern Washington.

Take care Roger. Say hello to Janet for us.

Be good,
Dan, Tanya, and (your favorite boat dog) Hannah
 
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