Is it possible........

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Is it possible........

Postby ampig » Mon Feb 01, 2010 10:13 am

..............to permanently repair the "ski bump" on a Fender neck?
Howard

"That's no surprise, kids are too cool for tort" - aussiemark
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Re: Is it possible........

Postby steveonbass » Mon Feb 01, 2010 11:13 am

Pull the top frets, plane, resurface, refret
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Re: Is it possible........

Postby harleyyy » Mon Feb 01, 2010 11:14 am

I have this 73 P heading to Dolan soon for this issue.

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Re: Is it possible........

Postby ampig » Mon Feb 01, 2010 2:02 pm

Pull the top frets, plane, resurface, refret

Had that done two years ago. Played like a dream. Now it's back...........
Howard

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Re: Is it possible........

Postby steveonbass » Mon Feb 01, 2010 2:23 pm

Hmmmm... is it a micro tilt neck? RW or maple board? Can you provide any more details? Maybe someone else can help.

You may be screwed - if the neck has a veneer board it may be too thin already - regardless, you may lose the markers if you do it again. Even so, it could keep happening. That is the only fix that I know of
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Re: Is it possible........

Postby ampig » Mon Feb 01, 2010 3:20 pm

No microtilt. Maple board.
Howard

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Re: Is it possible........

Postby Flash » Mon Feb 08, 2010 12:27 am

ampig wrote:
Pull the top frets, plane, resurface, refret

Had that done two years ago. Played like a dream. Now it's back...........


You really have to refret the bass. Planing part of the fingerboard isn't going to do it. You have to get the whole thing even.
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Re: Is it possible........

Postby ampig » Mon Feb 08, 2010 1:48 pm

You really have to refret the bass. Planing part of the fingerboard isn't going to do it. You have to get the whole thing even.

This was done once already. The bass played like a dream. Lasted about two years and the bump is back
Howard

"That's no surprise, kids are too cool for tort" - aussiemark
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Re: Is it possible........

Postby Flash » Thu Feb 11, 2010 2:33 pm

ampig wrote:
You really have to refret the bass. Planing part of the fingerboard isn't going to do it. You have to get the whole thing even.

This was done once already. The bass played like a dream. Lasted about two years and the bump is back


Ok - next question is what year/model is this bass?
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Re: Is it possible........

Postby ampig » Thu Feb 11, 2010 8:45 pm

83 MIJ Fender P with maple board
Howard

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Re: Is it possible........

Postby Flash » Sat Feb 13, 2010 11:58 pm

ampig wrote:83 MIJ Fender P with maple board


Does the neck have a shim in it or anything? I could explain it happening twice if it was a 3 bolt with the mircotilt but not a 4 bolt MIJ bass.
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Re: Is it possible........

Postby ampig » Mon Feb 15, 2010 8:21 am

4 bolt with no shim.
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Re: Is it possible........

Postby Ken Baker » Tue Feb 16, 2010 12:06 am

ampig wrote:..............to permanently repair the "ski bump" on a Fender neck?


Permanently repair? Sometimes maybe, but everything I've read and learned says that it's pretty much permanently disfigured. It can usually be repaired, and the repair may last for several years, but the repair rarely is permanent over the life of the instrument.

The root of the problem is that the wood of the neck isn't as strong as it needs to be, particularly in the area of the neck/body joint. This basically means that it can affect ANY neck type - bolt-on, set, or thru, though it's most often seen in bolt-on necks. The problem's onset can be hastened and/or exacerbated by improper neck tilt adjustments, whether via adjuster or shim.

3-bolt necks with the MicroTilt (Fender) or Precision Tilt (G&L) are, by design, really no more susceptible to skijump than non-adjustable. Where they run into problems is when users over-adjust the tilt then over-tighten the neck screws, which can force a skijump through the mechanical clamping action of the neck screws. It's a matter of where the neck screws are located relative to the position of the outboard end of the body pocket and the tilt adjuster. If you raise the neck heel enough with the adjuster then really reef down on the 2 neck screws nearest the outboard end of the body pocket, it is possible over time to draw the neck into a skijump bend. I've bought (and sold off) a badly skijumped bass where this was exactly the cause of the problem. I currently own a 25 year old bass where the 3-bolt neck has been properly adjusted using a fair amount of tilt and just enough tightness on the screws to keep the neck perfectly in place and there is zero skijump in evidence.

Shimming can create the same sort of problem as adjusters but it takes a little more effort to screw things up. In my experience, it's best to place shims at neck screw locations (with holes punched in the shims). Then the neck screws are carefully tightened, but not over tightened. If shims are placed outboard of screw locations and the neck screws are over tightened, the same clamping action described above can cause problems.

In the end, it's just a mechanical problem stemming from the strength (or lack of enough strength) of the neck wood. The bad part is that humans sometimes don't help much.

What Dolan many times does is plane a little bit extra from the fingerboard from about the 11th or 12th fret to the end (23rd or so). This allows for the skijump to return, which it will do, and still leave the instrument in more-or-less playable condition. He then re-frets the board and re-finishes what needs refinishing.

Hope this helps.

Ken...
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