Stubborn alternator
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Stubborn alternator
I'm currently having charging issues. After replacing the battery (which I knew was bad anyway) I was running fine again. Now I'm not charging again and I figured the first part to get checked out would be the alternator. I got the top bolt off without any trouble, but the bottom bolt I cannt get to budge. I've sprayed penetrating oil around the bolt and allowed it to sit for a few hours and still nothing. I've even pulled out a cheater bar, but all that did for me was flex my wrench
. Are there any tricks that I'm unaware of? Any suggestions would be great.
My truck is an '89 f250, 5.8L, auto.
. Are there any tricks that I'm unaware of? Any suggestions would be great.My truck is an '89 f250, 5.8L, auto.
Posting Guru
Joined: Oct 2009
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From: Ohio
Move the wire harnesses out of the way and bring out the torch. Don't heat it red hot...just enough to loosen the corrosion in the threaded hole. It's common when using steel bolts and aluminium tapped holes. Add a bit of grease to the bolt when you get to the point of putting it all back together to avoind the same issue in the future.
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check your wires going to the altinater... ford's quite common for broken alt. wires, check that before you go to the extereme of heating up the bolt.... there should be 3 wires commeing from the plug that goes in the side of the altin.
Posting Guru
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From: Ohio
I just went through this about 2 months ago...
Be smart, go for the 75 amp alternator...only about $10-$15 more. That will insure you have the extra juice should you add anything like a winch, stereo system, extra lighting, etc...
Fleet Mechanic
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From: Fort Worth
I just googled it and there were many people selling it online pretty cheap. If it's as good as you say it is, I might have to order me a can and try it out.
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From: Los Angeles, CA
For less than $100 you can get a 95amp 3G alt that will fit in with no bracket modification. Had it done on my '89 a few months ago. Of course there will be a minor wire mod.
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
What happens is the bolt shaft freezes in the sleeve of the alternator not the head.
So if you use heat put it on the part under the alternator. You may also be able to swing the alternator down some making a small gap between the head and the alternator to put the mouse milk in.
Posting Guru
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From: Ohio
It is a steel bolt and cast iron head with the threads.
What happens is the bolt shaft freezes in the sleeve of the alternator not the head.
So if you use heat put it on the part under the alternator. You may also be able to swing the alternator down some making a small gap between the head and the alternator to put the mouse milk in.
What happens is the bolt shaft freezes in the sleeve of the alternator not the head.
So if you use heat put it on the part under the alternator. You may also be able to swing the alternator down some making a small gap between the head and the alternator to put the mouse milk in.
Elder User
Joined: Feb 2007
Posts: 690
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From: Madison Ohio
Its a 89 W/ 351 The bolt goes in to the bracket not the heads, or block. I just changed my brackets due to the PO snapped off the front tab for the bottom Alt mount and tried to fix with that epoxy putty ... did not work.
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