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Fusible alternator link

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=39119
Printed Date: May-10-2024 at 5:02pm


Topic: Fusible alternator link
Posted By: MustangMadness
Subject: Fusible alternator link
Date Posted: June-27-2016 at 2:07pm
Can I remove the epoxy ball from the alternator output lead on my 1976 Mustang OMC?

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I like a 6' beam on a small lake... My Muscleboat
1975 Mustang 225 307RH



Replies:
Posted By: 8122pbrainard
Date Posted: June-27-2016 at 6:22pm
I don't feel that's an "epoxy ball". OMC uses a diode spliced into the output to prevent a parasitic discharge. Why do you want to remove it???

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/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
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Posted By: MustangMadness
Date Posted: June-28-2016 at 8:19am
According to my parts manual, it is a 60amp fuse..
While trouble shooting the voltage regulator, I sent battery voltage to alternator field and the ball had a slight melt down.

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I like a 6' beam on a small lake... My Muscleboat
1975 Mustang 225 307RH


Posted By: 8122pbrainard
Date Posted: June-28-2016 at 8:39am
Terry,
Do you have the wiring diagram? Your parts manual may list a fuse but not a location? I still feel the part is a diode. There's actually a thread on the OMC diode someplace. I'll go searching. Why the troubleshooting? What was going on?

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/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<


Posted By: 8122pbrainard
Date Posted: June-28-2016 at 9:22am
http://www.correctcraftfan.com/forum/forum_posts.asp?TID=9962&title=alternator-external-diode" rel="nofollow - Search results on OMC inline diode

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/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<


Posted By: MustangMadness
Date Posted: June-28-2016 at 12:36pm
My battery stopped charging. I measure only 12.5v when running above idle. When running my amp meter (not a voltmeter) reads 0 or slight discharge. That ball device is on the output from the alternator to battery lead on the starter solenoid, not the vreg output to field.. It would make more sense to me if it were a fuse. I would include a pic of it if I were up at my camp. I will include in a day or 2.

It looks like this ball https://www.marineengine.com/newparts/part_details.php?pnum=OMC0383432" rel="nofollow - https://www.marineengine.com/newparts/part_details.php?pnum=OMC0383432

I found a new one on eBay

$20 delivered, can't beat it!

I guess it is a fusible link of sorts.

Thanx Pete!

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I like a 6' beam on a small lake... My Muscleboat
1975 Mustang 225 307RH


Posted By: MustangMadness
Date Posted: July-05-2016 at 10:31am
New voltage regulator and fusible link did the trick. Great boating day yesterday

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I like a 6' beam on a small lake... My Muscleboat
1975 Mustang 225 307RH



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