Primary cover bolts
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Cruiser
Joined: May 2012
Posts: 133
Likes: 6
From: Louisiana
I didn't see any kind of locker on the bolt. I have several types of soakers and I will try that. The threads on the bolt were shiny and looked good. It has been s while since the primary has been off. Like you said the bolt could have de eloped some corrosion. I do have a new bolt set comming. I only have one type of anti sieze. Wasn't sure if there was a specific one for this.
Banned
Joined: Jul 2009
Posts: 7,406
Likes: 834
From: Straight Jacket Memories and Sedative Highs
what normally happens is a galvanic reaction between the steel bolt and the aluminum case. I would consider replacing all the bolts (a fastener supply house or industrial supply store are good sources) with stainless steel bolts. I would take one of the "good" old bolts and run them into every hole to make sure the go in and out freely. Consider a dab of anti-seize when installing new bolts. And a quick check on the torque/snugness of these should be part of your service routine.
Seasoned HDF Member
Joined: Jan 2011
Posts: 157,543
Likes: 57,089
From: Michigan 15 Minutes East Of Hell
I would chase the threads but you can't get to them. It is the long bolt that goes through the inner primary. I would have to pull the primary which I am trying to avoid.
I am trying to find out about anti sieze. I think there is more than one kind. For different types of metal. Any information appreciated.
I am trying to find out about anti sieze. I think there is more than one kind. For different types of metal. Any information appreciated.
Seasoned HDF Member
Joined: Jan 2011
Posts: 157,543
Likes: 57,089
From: Michigan 15 Minutes East Of Hell
Road Master
Joined: Nov 2009
Posts: 1,229
Likes: 417
From: Outer Banks, NC
Go buy a long bolt with the same threads. Then cut tiny grooves. You have now made yourself your own thread chaser. Use some oil on it and run it in and out a few times. Now the real bolt will go in nice and smooth.
Seasoned HDF Member
Joined: Aug 2009
Posts: 9,243
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From: west Michigan
I wouldn't try to "cut" anything out of aluminum threads or chase them unless they were too crudded up thread a bolt into. I'd sooner clean them with a .17 cal nylon bore brush and penetrating oil, maybe chucked into a drill motor.
I never use anti seize on fasteners unless the manufacturers instruction manual calls for it.
I never use anti seize on fasteners unless the manufacturers instruction manual calls for it.
Banned
Joined: Jul 2009
Posts: 7,406
Likes: 834
From: Straight Jacket Memories and Sedative Highs
I wouldn't try to "cut" anything out of aluminum threads or chase them unless they were too crudded up thread a bolt into. I'd sooner clean them with a .17 cal nylon bore brush and penetrating oil, maybe chucked into a drill motor.
I never use anti seize on fasteners unless the manufacturers instruction manual calls for it.
I never use anti seize on fasteners unless the manufacturers instruction manual calls for it.
Seasoned HDF Member
Joined: Apr 2018
Posts: 5,947
Likes: 5,160
From: Louisiana
I just pulled the primary cover bolts on my Ultra for the first time about two weeks ago. First thing that I noticed is the threads were dry. When I reinstalled the bolts, I used a bit of grease on the threads to help keep them from seizing in the future.
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Thread Starter
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Cruiser
Joined: May 2012
Posts: 133
Likes: 6
From: Louisiana
Some good ideas. I really can't understand why it was so hard to come out. I can't hardly believe it would be cross threaded but I don't know. Like I said the bolt look good. No aluminum on the threads. Other than being hot from working it back and forth it looked fine to me.
I have a .17 caliber rifle. Can't remember what kind of brush it has. Would it hurt if I put a little oil or grease on the bolt and try it.
I have a .17 caliber rifle. Can't remember what kind of brush it has. Would it hurt if I put a little oil or grease on the bolt and try it.