Like Tree0Likes

Engine Alarms - Assistance Needed

Reply
Old 05-25-2008, 10:12 AM
  #1
Registered
Thread Starter
 
Join Date: May 2004
Location: Midlothian, VA
My Boats: Boatless :(
Posts: 615
Default Engine Alarms - Assistance Needed

Is there anyway to detect what your engine alarms are trying to tell you? I have 496HO's and when I am planing off or coming off plane, I get a constant alarm until such time that I get to cruise or come out of gear, respectively. The obvious investigation here is fluids however, they all look fine. Suggestions?
Ca$hed Out is offline  
Reply With Quote
Old 05-25-2008, 10:19 AM
  #2
Registered
 
Harper220's Avatar
 
Join Date: Jun 2003
Location: Omaha~LOTO
My Boats: 2001 28 TD Daytona
Posts: 1,496
Default

Fluid levels would be my first instinct also. This happened to us also coming onto plane with 525's. As it turned out one of the drive oil resivoirs was low. Not sure if there is such a thing as too full though and the sensors detecting it? Do you by chance have a scan tool? That might pinpoint the problem.
Harper220 is offline  
Reply With Quote
Old 05-25-2008, 10:27 AM
  #3
Registered
Thread Starter
 
Join Date: May 2004
Location: Midlothian, VA
My Boats: Boatless :(
Posts: 615
Default

Thanks...gonna go down to the dock and check them all again while she is cold. Interesting that you talk about drive oil resevoirs being too full. I had an alarm last weekend and that was it - filled them and that took care of it thru a poker run.

I don't have a scan tool...need to get one.
Ca$hed Out is offline  
Reply With Quote
Old 05-25-2008, 10:32 AM
  #4
Forum Regulator
VIP Member
Trade Score: (1)
 
Sydwayz's Avatar
 
Join Date: May 2001
Location: Worldwide
My Boats: 17' Speedliner Cat & O.P.B.
Posts: 21,920
Default

Shawn, do you have fresh water flush fittings on the boat? They good be gummed up with sand and or crap, restricting waterflow.
Do you have water pressure gauges? How did the temps look?

See if you can figure out which side is doing it but just firing up one engine at a time, and "try to bring it up on plane."

That's about all you can do without a Rinda.
Sydwayz is offline  
Reply With Quote
Old 05-25-2008, 10:42 AM
  #5
Registered
 
Harper220's Avatar
 
Join Date: Jun 2003
Location: Omaha~LOTO
My Boats: 2001 28 TD Daytona
Posts: 1,496
Default

Quote:
Originally Posted by Sydwayz View Post
Shawn, do you have fresh water flush fittings on the boat? They good be gummed up with sand and or crap, restricting waterflow.
Do you have water pressure gauges? How did the temps look?

See if you can figure out which side is doing it but just firing up one engine at a time, and "try to bring it up on plane."

That's about all you can do without a Rinda.
I just posted a thread regarding the fresh water issue. my pressure is way too high on one engine. If you get a chance check out the post titled "Need help regarding 496 high water pressure". Any suggestions would be appreciated.
Harper220 is offline  
Reply With Quote
Old 05-25-2008, 11:26 AM
  #6
Registered
Thread Starter
 
Join Date: May 2004
Location: Midlothian, VA
My Boats: Boatless :(
Posts: 615
Default

So...went out this morning, checked while cold and all fluids were fine. Started her and idled her for about 10 minutes and fine. Rode for about 15 minutes, at various speeds including WOT. As soon as she came off plane, she started beeping - it was constant for several minutes. Once I docked her and left her running, it eventually stopped. After about 3-4 minutes of idle at the dock, it came back on for about a minute and stopped for good.

Brian - interesting that you ask...you may be onto something. I do have fresh water fittings. The tubes are 1/2 - 3/4 full and they have a shade of brown to them. How do I clear these? Also, I wanted to ask...it seems the alarms would work per motor. If indeed they work per motor, then it is my port side motor as the alarm stopped when I shut this one off. This is as far as I have gotten...

In addition, the starboard engine has a lower water pressure than the other. There was already a slight difference in the reading when I took the boat new however, it now seems worse. Running at 3500 RPM;
Port: 14 PSI
Starboard: 9 PSI
Even at WOT, this stays relative (about 20 and 14 respectively)

Harper - another piece of interesting info. Yesterday, I noticed my bilge had quite a bit of water in it. I drained it last night and checked this morning and it was the same. After my ride this morning, it was the same. However, I read your post and am wondering if I may have the same problem as you with the drain valve opening? I also have good flow from the tail pipes.

Last edited by Ca$hed Out; 05-25-2008 at 12:04 PM.
Ca$hed Out is offline  
Reply With Quote
Old 05-25-2008, 11:37 AM
  #7
Registered
 
Macklin's Avatar
 
Join Date: Dec 2001
Location: Virginia Beach
My Boats: 36 Concept w/ Merc 250 EFI Smokers
Posts: 1,902
Default

I'm wondering if it is a water pressure issue. Low water pressure will set of an alarm. I used to get an alarm while flushing my HO's at the old marina if too many other folks were using the hoses at the same time. Have you changed out your impellors this year?

You should have a separate alarm for each motor.

Last edited by Macklin; 05-25-2008 at 11:42 AM.
Macklin is offline  
Reply With Quote
Old 05-25-2008, 11:43 AM
  #8
Registered
Thread Starter
 
Join Date: May 2004
Location: Midlothian, VA
My Boats: Boatless :(
Posts: 615
Default

Hey Macklin...thx. No, I didn't change them this year - I only had about 28 hrs on the boat last summer...more or less stopped using it in Aug as Lisa was quite pregnant. I feel like it is a water pressure issue -especially when the bilge filled yesterday.

Last edited by Ca$hed Out; 05-25-2008 at 12:00 PM.
Ca$hed Out is offline  
Reply With Quote
Old 05-25-2008, 11:53 AM
  #9
Registered
 
Macklin's Avatar
 
Join Date: Dec 2001
Location: Virginia Beach
My Boats: 36 Concept w/ Merc 250 EFI Smokers
Posts: 1,902
Default

The bilge filled? That sounds like one of your drain cocks might be partially stuck open. Try popping the air release on both motors to make sure they are closed.

You are right, 28 hours doesn't warrant replacement. But if you sucked up some sand...you never know.

Good luck.

Last edited by Macklin; 05-25-2008 at 12:00 PM.
Macklin is offline  
Reply With Quote
Old 05-25-2008, 12:00 PM
  #10
Forum Regulator
VIP Member
Trade Score: (1)
 
Sydwayz's Avatar
 
Join Date: May 2001
Location: Worldwide
My Boats: 17' Speedliner Cat & O.P.B.
Posts: 21,920
Default

I'm willing to bet you have something wrong with the either the plumbing on the motor with low water pressure, or the SWP impeller has started to let go, and has compromised the seal between the water pump and the cap plate.

Either that, or your fresh water flush fitting is gummed up with sand/gunk. You will probably have to follow those hoses down to the T-fitting, and take the T-fitting apart. You could try hooking up a water hose and running on the hose, but if something is wrong with the SWP, you risk mulching up the impeller if you don't get enough water to it.

I'd come down and look at it with you tomorrow, but I have to be in Baltimore on Tuesday, and that's a little too much windshield time especially on the holiday weekend.
Sydwayz is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trc2
General Boating Discussion
4
05-27-2008 07:58 PM
Carder
General Q & A
11
06-26-2007 10:59 AM
JLANE
General Q & A
2
05-16-2005 04:16 PM
gdfatha
General Boating Discussion
6
12-15-2003 07:27 PM
MegaByte*3
General Boating Discussion
25
10-18-2002 04:41 PM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:30 AM.


Copyright 2011 OffShoreOnly. All rights reserved.