I've been trolling the forums here for two weeks trying to find a resolution to my problem but still haven't found an answer specific to my problem. I would greatly appreciate any suggestions people here have.
A little background: 2 weeks ago I took the boat out for the first time and it was running perfectly, as it always has. Then, when I took it up to about 4500 RPM's, the alarm buzzer on the control box went off-- constant tone for overheat. The control is a brand new this year new style commander 2000 box with the warm up lever. I immediately shut the motor off, waited about 10 minutes and fired it up again, still buzzing.
I idled back to the dock, pulled the boat out and went home. In my driveway I fired the boat up on muffs (about a half hour later) and no buzzer/alarm. I then searched iboats for answers and immediately found out my first thing to do was change out the impeller/water pump. I bought an entire water pump kit with housing and replaced it this week. Running on muffs in the driveway the pisser tell-tale was shooting a TON of water out, what a difference the new impeller made.
Naturally, I think my problem is solved, so last night I took the boat out again, starts right up, no buzzer even at WOT. Then after about 15 minutes the buzzer goes off again, but this time it varies between a loud constant buzz and a dying cow kind of whine that made me thing right away that I either have a bad oil warning module (that control the oil and overheat alarms) or a bad buzzer in my NEW control box. I took the cowl off, jiggled the overheat sensor wire on the block in idle and the buzzer shut off. Back to cruising as usual, then about a half hour later it goes off again but it a little more whiney and unstable sounding. The water temp of the tell-tale was luke warm - cool at best, and I could rest my hand on top of the block for about 5-10 seconds-- so I'm pretty sure i'm not actually overheating. By the way, the oil injection is definitely working and there is plenty of oil in the tank. But I'm also premixing oil 50:1 to be safe.
With the engine running I disconnected the two blue wires coming from the oil tank, and the alarm was still sounding. When I disconnected the tan/blue wire from the temp sender, the alarm went off.
Does anyone have any suggestions from these symptoms as to what it could be?
From what I gather it could be:
-oil warning module
-overheat sensor
-themostat
-poppet
-buzzer in control box
I am considering at this point just replacing everything, but the warning module is like 100 bucks and I'd like to not buy that if I dont need to. I'm going island camping next weekend with the boat so I need to overnight some parts ASAP.
Thanks for all your help,
Marty
A little background: 2 weeks ago I took the boat out for the first time and it was running perfectly, as it always has. Then, when I took it up to about 4500 RPM's, the alarm buzzer on the control box went off-- constant tone for overheat. The control is a brand new this year new style commander 2000 box with the warm up lever. I immediately shut the motor off, waited about 10 minutes and fired it up again, still buzzing.
I idled back to the dock, pulled the boat out and went home. In my driveway I fired the boat up on muffs (about a half hour later) and no buzzer/alarm. I then searched iboats for answers and immediately found out my first thing to do was change out the impeller/water pump. I bought an entire water pump kit with housing and replaced it this week. Running on muffs in the driveway the pisser tell-tale was shooting a TON of water out, what a difference the new impeller made.
Naturally, I think my problem is solved, so last night I took the boat out again, starts right up, no buzzer even at WOT. Then after about 15 minutes the buzzer goes off again, but this time it varies between a loud constant buzz and a dying cow kind of whine that made me thing right away that I either have a bad oil warning module (that control the oil and overheat alarms) or a bad buzzer in my NEW control box. I took the cowl off, jiggled the overheat sensor wire on the block in idle and the buzzer shut off. Back to cruising as usual, then about a half hour later it goes off again but it a little more whiney and unstable sounding. The water temp of the tell-tale was luke warm - cool at best, and I could rest my hand on top of the block for about 5-10 seconds-- so I'm pretty sure i'm not actually overheating. By the way, the oil injection is definitely working and there is plenty of oil in the tank. But I'm also premixing oil 50:1 to be safe.
With the engine running I disconnected the two blue wires coming from the oil tank, and the alarm was still sounding. When I disconnected the tan/blue wire from the temp sender, the alarm went off.
Does anyone have any suggestions from these symptoms as to what it could be?
From what I gather it could be:
-oil warning module
-overheat sensor
-themostat
-poppet
-buzzer in control box
I am considering at this point just replacing everything, but the warning module is like 100 bucks and I'd like to not buy that if I dont need to. I'm going island camping next weekend with the boat so I need to overnight some parts ASAP.
Thanks for all your help,
Marty
