Posted by Squall Line on May 03, 2003 at 18:54:38:
Message Added: BEWARE of a VERY$$ EXPENSIVE POTENTIAL Merc. Engine Problem ! ! !
BEWARE of a VERY$$ EXPENSIVE POTENTIAL Merc. Engine Problem ! ! !
I am posting this because of a problem that all Merc. owners MAY face as I have.
NOTE and Warning for 40-50-60 hp Merc 2 stroke 3 cylinder engine owners
The following is copied and pasted from a conversation that I had on another Message board
The problem is real
It happened to me !!
2001,50 hp merc.
Just left the dock and suddenly lost rpm gage [read out] and battery shows 12v or slightly less -->discharging?
I have extended waranty, but is this a problem that I can address myself without an extended [spring time] stay in the shop?
Motor cranks [so far] and runs fine, nothing else seems out of the ordinary.
Sounds like your stator or rectifier/regulator crapped out. Might want to pull the cover off an look at where all the wires congregate from the stator. The 60 cu. in. (40, 50, 60 HP 3 cylinder 2 cycle)late model Mercs have a problem from the factory where they tie wrapped the wires so tight at the bullet connectors that they short out(sharp edges from crimps on bullet connectors). This is known problem with this particular motor and Mercury will fix it. The parts are PROHIBITVLY expensive as this particular engine has an 18 amp output. Labor is about 2 hours if they have the parts. On the other hand...maybe you jus got a loose wire … check all the bullet connectors for corrosion, spray some LPS 3 on them and put back together. I have one of these engines and manual, let me know if you find the problem. I had the shorted problem with mine and Mercury fixed it OUT OF WARANTY! …
The fix is to tie wrap the wires and not the bullet connectors
There is also a fuse at the top of the "electricle rack" on the right side rear of the power head, check that and make sure all your cables are clean and tight at the battery and engine. Check these things and lets us know. If it still dosen't work, get a little cheap volt-ohm meter and get back to us for the next step in checking diodes and stator.....
My Reply this PM 5/03/03
Our motor problem is a lot more serious than I thought. ALL WIRES on one side if the engine have melted and BURNED, shorting out everything.
We had a fire and didn't even know it.
We found a good local guy at our marina to do the warranty repairs for us, and expect to have the boat back in 7-10 days, not the 6-8 weeks that 2 different local Merc dealers told us.
A lot must be replaced, complete new wire harness, stater, relays, etc. etc.
There were 3 other Merc engines at the marina that had the same problem. The estinated cost is over $600.
Thank God we paid for the extended warranty.
Our out of pocket will be $50.
Thanks again four help.
[IF YOU OWN A MERC. GO NOW AND PULL THE COVER ,CHECK THE WAY YOUR WIRES ARE CONNECTED, IF THE BULLET CONNECTORS ARE TIE WRAPED... CUT THE TIE WRAPS AND RE TIE THE WIRES AS THE REPLY ABOVE SUGGESTS- OR- FACE A POTENTIAL HIGH $$$$ PROBLEM
I hope this saves someone somewhere a big $$$ problem.
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