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Old 14 February 2010, 07:48   #1
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URGENT - can anyone help PLEASE!

Opti 150 running fine for mosty of the morning, then smartcraft warning saying Check engine...then Battery IIRC....comes when dropping revs quickly or when using trim /tilt....

The battery scale comes up showing 8v on the 18v max scale. Started as an Intermitent problem....also sometimes asks you to reduce throttle...then clears.

Assume??? this is the alternator failing? Can ayone confirm?

Further, I am really struggling as I am due out Tues, Weds, Thurs, Fri with the boat....would be a MAJOR problem if I missed these dates, so need to sort today /tomorrow.

If it is alternator - does anyone have a new one in stock /know where i could begin looking and which I could get hold of tomorrow (I'm in West wales but willing to travel)....further, would be prepared to borrow a second hand one if anyone wasn't using their outboard....would replace with a brand new one and pay for the inconvenience etc.....PLEASE CAN ANYONE HELP?

Dan
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Old 14 February 2010, 07:55   #2
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had opti 200
roughly same warning engine stuttering then it would clear made it home ok it was caused by a nick in the trim sensor cable at the outboard shorting with salt water and wave action
a very cheap repair
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Old 14 February 2010, 08:07   #3
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Thanks Doug.....will run through and check, BUT engine not stuttering....running okay (obviously buzzer sounds /asks me to throttle down sometimes).

ANY ONE ELSE????
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Old 14 February 2010, 08:12   #4
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Dan . OFF THE ALTERNATOR you will SEE a RED WIRe going onto the starter solenoid . this is a THICK gauge wire and on this wire is a FUSE . OK if this FUSE is blown this will give you these symptons definetly . OK you need to check you have continuity between this alternator and the solenoid / If NO continuity your fuse is BLOWN AND you will need to replace this with a new wire as the fuse is built in . Hope this makes sense
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Old 14 February 2010, 12:51   #5
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Quote:
Originally Posted by outboardtech View Post
Dan . OFF THE ALTERNATOR you will SEE a RED WIRe going onto the starter solenoid . this is a THICK gauge wire and on this wire is a FUSE . OK if this FUSE is blown this will give you these symptons definetly . OK you need to check you have continuity between this alternator and the solenoid / If NO continuity your fuse is BLOWN AND you will need to replace this with a new wire as the fuse is built in . Hope this makes sense

Hi OBtech....many thanks for this. I will check the fused line tomorrow am...have just had to give in due to light etc....sorry hadn't picked up your mail earlier.

If it is the fuse, can I make one up myself using the cable and a suitable fuse froma motor factors (for now)....do you know what the fuse is rated to by any chance?

Further, any ideas what might have caused it? The voltage on the smartcraft currently fluctuates between 10.9 and 11.9 ish....not sure if that is correct /indicates the same /an alternator problem. I have a twin battery set up and run it on 'both' could I have froed something? I can't get the problem to show on muffs...

Sorry for all the questions...am pulling my hair out.

Dan

Sorry....meant to say THANK YOU!
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Old 14 February 2010, 13:07   #6
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Dan

Sorry to hear about your problems and unfortunately I can't help you myself.

However Pete7 on here knows of a guy who's an opti specialist and I believe carries used spares etc.

Try a PM to Pete as he doesn't spend so much time on here any more, but does still answer his PMs.

Nasher.
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Old 14 February 2010, 13:09   #7
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If it is the alternator, you can borrow mine - let me know
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Old 14 February 2010, 13:14   #8
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Pete & I use Simon at Ribs Marine in Christchurch. A real wizz with Opti's

Phone 01202 477327

Hope it gets better soon

Steve
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Old 14 February 2010, 13:59   #9
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Dan , make sure you have the CORRECT batteries and they are FULLY CHARGED , I have seen alot of FAULT'S especially on the Opti's and Im sure ALOT of other experienced Tech's WILL agree with me that the correct battery are used on these engine's . These are battery rating 1000 ( Minimum ) Marine Cranking Amps ( MCA ) & 750 ( Minimum ) Cold cranking Amps ( CCA ) . Make sure you have fully charged batteries . Low VOLTAGE will drop the 5V sensor circuits and you will have all sort's of problem' s . OK STEP 2 . If you know you have good batteries you need to check the battery voltage coming off the alternator , VERY EASY , Positive lead of your DC meter onto the alternator output red wire and black metre lead to a good engine earth . You should get a reading around 12.8v to 15 v . If this is good , your alternator is GOOD ,then do the same on your cranking battery . As i said I have had alot of probs with the charging circuit on these Opti's and really 95% of the fault found have been BAD BATTERIES . Result's thks
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Old 14 February 2010, 14:42   #10
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Quote:
Originally Posted by Dan Worth View Post

do you know what the fuse is rated to by any chance?

Further, any ideas what might have caused it?
Fuse rateing is 100amp and it's normally a new cable with fuse fitted (not cheap)

Another cause to blowing this fuse could be, if you accidentally put the battery cables on the wrong way.
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