trenace
Needs a job
Posts: 3056
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posted August 10, 2005 10:36 PM
 Edited By: trenace on 13 Aug 2005 01:21
Titanium bolts question: TiPrep antiseize vs loctite?
Ignorant question, as I have not worked with titanium bolts but have just ordered some:
I understand using antiseize for titanium bolts.
But what if a bolt ought to be loctited?
Can a nice dose of loctite also prevent the galling, seizing, cold welding, etc problems?
Or, if loctite is needed, are you screwed (no pun intended)?
Thanks!
(EDIT: I've now e-mailed Tasty Nuts trying to get an answer, but still hopefully, almost for sure I would think, someone here will know? I cannot be the first facing both these goals at the same time, anti-seize and thread-locking for Ti!)
  
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trenace
Needs a job
Posts: 3056
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posted August 15, 2005 10:18 AM
Edited By: trenace on 15 Aug 2005 12:54
This is the answer I got from Pro Bolts (aka "Tasty Nuts"):
Titanium is a very grippy material, you really do need to use copper based lubricant to prevent galling. Obviously the lubricant cannot be used in conjunction with loctite or similar. So it comes down to a choice really.
It's the nature of the beast. All the race teams obviously choose titanium because the benefits far out weight any drawbacks.
It some cases, depending on the bolt, you may be able to loctite under the head or on the shoulder as well as lube the thread.
Hmmm... maybe using Red loctite in that fashion will be similarly effective as blue loctite used the usual way on the threads, and still be reasonably easily removable? I'll experiment with it.
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your car is slow
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Fuck Nitrous...Got Boost?
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posted August 15, 2005 11:54 AM
I thought harry mentioned something about dissimilar metal contact or something (not being a good thing).
*shrug..I dont recall.
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trenace
Needs a job
Posts: 3056
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posted August 15, 2005 11:57 AM
I don't fully understand but I also have read about how there can be a bad galvanic action between the metals, in other words a voltage difference developing which can lead to a corrosion, which the anti-seize prevents.
Maybe, on the theory of using loctite on the shoulder and under the head, the loctite is a barrier? Though I dunno.
I guess the thing to do will be to pull some bolts every now and then, e.g. rotor mounting bolts, to examine them, see if anything bad is going on. I guess I will have to treat the Ti bolts as items requiring maintenance rather than "set and forget."
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