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vol knob keeps falling off on my H150..

chico

By chico
in Heritage Guitars

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chico Veteran

chico

Posted
Posted

Its just one of the four, how does one best solve that problem?

 

tx

pushover Collaborator

pushover

Posted
Posted

My past solutions have been:

 

If it's a split top shaft on the pot, I pry a screw driver in the slot, widen it out a little, and refit the knob.

 

If it's a solid shaft on the pot I cut a tiny peice of paper put it on top of the shaft and then jam the knob over the paper and the shaft. The paper thickness is usually enough to allow the knob a tighter fit so it stays put., but you can always fold the paper in two for thickness..

 

The last approach with paper is a stupid little trick, but seems to work for me :)

yoslate Proficient

yoslate

Posted
Posted

CAREFULLY!!! You'll notice the pot's shaft, onto which the knob fits, is split.  You can take a small screwdriver and place the blade gently into the slot in the shaft, and applying the slightest of pressure, wiggle the blade back and forth to widen or open that slot just slightly.  Then see if the knob can be pressed back onto the pot shaft, with just the slightest bit of resistance, just enough that the knob may be pressed all the way onto the shaft and stay put.  I counsel caution in this because the pot shaft is very soft (aluminum or pot metal?), and if prised too enthusiastically, the side of the shaft against which you're pressing will snap off, necessitating the installation of a new pot!  And don't forget to turn the shafts of all the knobs all the way in one direction (10) or the other (1) to line the reinstalled knob up with the other knobs on the guitar.

JohnCovach Community Regular

JohnCovach

Posted
Posted

The plumber's tape option works best, in part because you can wrap the shaft as much as you need, and the tape will maintain the contour of the grooves, increasing the grip on the knob.  This all sounds vaguely pornographic, doesn't it?

SouthpawGuy Veteran

SouthpawGuy

Posted
Posted
The plumber's tape option works best, in part because you can wrap the shaft as much as you need, and the tape will maintain the contour of the grooves, increasing the grip on the knob.  This all sounds vaguely pornographic, doesn't it?

 

Are we still talking about guitars ?  ;D ;D ;D

 

This thread could be entitled "Auto Erotic Guitar Repairs"  :angel:

yoslate Proficient

yoslate

Posted
Posted
The plumber's tape option works best, in part because you can wrap the shaft as much as you need, and the tape will maintain the contour of the grooves, increasing the grip on the knob.  This all sounds vaguely pornographic, doesn't it?

 

LMAO!!

 

I question the efficacy of the term "vaguely" in mitigating your post, John!  Who you think you're foolin'?

chico Veteran

chico

Posted
  • Author
Posted

Thanks for all the responses guys.

It is the split shaft version.

I have tried the paper trick, it works to a degree, was wondering about using the plumber tape but never tried it.  nervous about using a flathead screwdriver to flange it out some, easy to slip and scratch the top  (OH NO!!!)

 

I may try the screwdriver tip, I'll followup with what I actually did.  I hate the thought of the knob falling off while at a gig or somewhere it could be lost.

yoslate Proficient

yoslate

Posted
Posted
Thanks for all the responses guys.

It is the split shaft version.

...nervous about using a flathead screwdriver to flange it out some, easy to slip and scratch the top  (OH NO!!!)

 

I may try the screwdriver tip, I'll followup with what I actually did.  I hate the thought of the knob falling off while at a gig or somewhere it could be lost.

 

As you gently wiggle the screwdriver in the split in the shaft, hold the shaft between the thumb and forefinger of your free hand to prevent the screwdriver from slipping.

davesultra Proficient

davesultra

Posted
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I was hoping that this thread would get a bit more X-rated. I was gonna' audition for the part of the "Pizza delivery guy". More seriously though, I'd opt for the plumbers tape thing. I've broken many tabs off of split shaft pots even when using the slightest pressure. Oddly enough, I've found that the brass ones snap easier than the pot metal/aluminum.

Thundersteel Proficient

Thundersteel

Posted
Posted
I was hoping that this thread would get a bit more X-rated.

 

If if gets any more saucy, I'm going to have to move this thread to The Family Tree.  :police:

 

 

 

 

Wait--that doesn't sound right! X-rated material in the FAMILY Tree--uh, I gotta go!  ;D

Dick Seacup Proficient

Dick Seacup

Posted
Posted
You could also use a small piece of plumbers tape, Teflon Tape (PTFE).

 

I was going to suggest that, but you beat me to it.  I did that on some guitar or other (something Stratocaster-ish, as I recall) and could never get the damn knob off again without putting a towel on the top and levering it off with a screwdriver.  The screwdriver in the split shaft works, too.

SouthpawGuy Veteran

SouthpawGuy

Posted
Posted
I was going to suggest that, but you beat me to it.  I did that on some guitar or other (something Stratocaster-ish, as I recall) and could never get the damn knob off again without putting a towel on the top and levering it off with a screwdriver.  The screwdriver in the split shaft works, too.

 

A tiny drop of WD40 on the PTFE should help with that.

 

 

 

.... it's getting kinky now !

Thundersteel Proficient

Thundersteel

Posted
Posted

Ok, here's a trivia question:

 

What does "WD-40" signify? In other words, why is it called "WD-40?"

SouthpawGuy Veteran

SouthpawGuy

Posted
Posted
Ok, here's a trivia question:

 

What does "WD-40" signify? In other words, why is it called "WD-40?"

 

 

http://www.naturalhandyman.com/qa/qawd40.html

 

"According to the WD-40 Company, the name "WD-40" originated in 1953 when the product was first developed. The company, originally known as the "Rocket Chemical Company", was trying to design a protectant for metal parts on rockets to prevent rust and corrosion by displacing water... hence the "WD" for water displacement.

 

The "40", on the other hand, indicates that the formula (still in use today, by the by) was the 40th attempt to get it right! And they did. Talk about persistence!"

 

I thought myself that it was because it has 40 different uses, you learn something new every day !

brentrocks Rookie Copy

brentrocks

Posted
Posted
Ok, here's a trivia question:

 

What does "WD-40" signify? In other words, why is it called "WD-40?"

 

for the record, i knew that ;D

Thundersteel Proficient

Thundersteel

Posted
Posted
"According to the WD-40 Company, the name "WD-40" originated in 1953 when the product was first developed. The company, originally known as the "Rocket Chemical Company", was trying to design a protectant for metal parts on rockets to prevent rust and corrosion by displacing water... hence the "WD" for water displacement.

 

The "40", on the other hand, indicates that the formula (still in use today, by the by) was the 40th attempt to get it right! And they did. Talk about persistence!"

 

 

Correct!  :icon_compress:

 

It was used during the Atlas missile program in the 50s. I guess that makes WD-40 as good as 50s Gibsons (and modern Heritages), eh?

faultline Rookie

faultline

Posted
Posted

sorry i don't have any wisdom to share on the history of wd-40

 

... but when a knob is falling off, i use the methods mentioned previously to spread the split shaft, usually put a polish cloth around the shaft just in case the screwdriver slips ... then i trim a heavy pick to make a shim to fill the slot on the shaft.  This seems to help with the sides of the shaft moving inwards again ...  this also helps when using knobs for solid shafts on split shaft pots

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