Hi - I have a early 90s J200 with a new-ish fuel/oil pump - installed latest version of the OMS pump 2 or 3 years ago. It's been working perfectly. I monitor the oil usage at least roughly (marks on the oil tank) and it burns oil within normal ratios.
This is the alarm system with patterns, not the smart gauge type.
A couple of weeks ago, I accidently left the key in the "on" position over night. The next morning, the alarm was beeping and my guess is that it had been beeping all night. I think I might have damaged the alarm itself or the wiring somewhere because....
Since then, sometimes when I start the engine, it gives me the normal "chirp" but no subsequent alarms (except when appropriate - i.e. low oil).
Sometimes (and not before that time), when I turn the key to "on" prior to starting, the alarm sounds constantly and keeps sounding constantly even after the engine starts. Sometimes it does sort of a sporadic alarm, not consistent with any of the true alarm patterns.
This "false" alarm deal does not happen every time I start the engine.
It usually goes away when I simply turn off the engine and restart. Sometimes it takes a couple of these cycles, but never more than 2 or 3. I can always get it to quit.
It never occurs out of the blue when the engine is running. In other words, once I'm underway, I don't get any false alarms.
It seems to be more prevalent when the engine is cold. It seems to happen about 2/3 or more of the time with first cold starts in the morning.
It happens rarely, but sometimes with later cold starts (say after being shut down for an hour or so trolling w/ trolling motor.
I don't think it ever happens with warm starts, at least as I can remember.
Again, I'm thinking that somewhere in the alarm system, I've damaged something. I understand the rudiments of the alarms on these engines - how there are sensors in the oil tank (float switch for low oil), the engine block (overheat) and in the oil/fuel pump (fuel restriction and no oil). I also understand that there's a piezo (?) in the control box that is the actual alarm, and it sounds when one of these sensors causes a ground in the alarm system.
Any ideas how I can troubleshoot and fix this irritating problem? That alarm does it's job: it's very irritating!
Thanks in advance.
This is the alarm system with patterns, not the smart gauge type.
A couple of weeks ago, I accidently left the key in the "on" position over night. The next morning, the alarm was beeping and my guess is that it had been beeping all night. I think I might have damaged the alarm itself or the wiring somewhere because....
Since then, sometimes when I start the engine, it gives me the normal "chirp" but no subsequent alarms (except when appropriate - i.e. low oil).
Sometimes (and not before that time), when I turn the key to "on" prior to starting, the alarm sounds constantly and keeps sounding constantly even after the engine starts. Sometimes it does sort of a sporadic alarm, not consistent with any of the true alarm patterns.
This "false" alarm deal does not happen every time I start the engine.
It usually goes away when I simply turn off the engine and restart. Sometimes it takes a couple of these cycles, but never more than 2 or 3. I can always get it to quit.
It never occurs out of the blue when the engine is running. In other words, once I'm underway, I don't get any false alarms.
It seems to be more prevalent when the engine is cold. It seems to happen about 2/3 or more of the time with first cold starts in the morning.
It happens rarely, but sometimes with later cold starts (say after being shut down for an hour or so trolling w/ trolling motor.
I don't think it ever happens with warm starts, at least as I can remember.
Again, I'm thinking that somewhere in the alarm system, I've damaged something. I understand the rudiments of the alarms on these engines - how there are sensors in the oil tank (float switch for low oil), the engine block (overheat) and in the oil/fuel pump (fuel restriction and no oil). I also understand that there's a piezo (?) in the control box that is the actual alarm, and it sounds when one of these sensors causes a ground in the alarm system.
Any ideas how I can troubleshoot and fix this irritating problem? That alarm does it's job: it's very irritating!
Thanks in advance.