Re: Tranny Issues

[William and Melissa Johns <gizmology-at-gizmology.net>]

At 09:40 PM 8/13/2004, you wrote:
>Couple of questions regarding belts and chain:
>What do you use to break chain.  There seems to be a chain breaking tool - 
>wtf?  Might I have any sucess with a hammer and nail?

   I use a grinder to take the expanded head off the pin and then drive it 
out with a hammer and nail, or sometimes a hammer and broken drill bit.

>I got sprockets that are for #35 roller chain - McMaster has a footnote 
>that their #35 roller chain is "rollerless roller chain" - again, wtf? and 
>should I care?

   The diameter of the rounded base between of the teeth of a sprocket is 
larger on #30 (roller) chain than on #35 (rollerless) chain.   So a #30 
won't fit on a #35 sprocket, and a #35 chain will be loose on a #30 sprocket.
   See http://www.gizmology.net/sprockets.htm .

>Is there a difference between 4L and A section belts?  McMaster doesn't 
>seem to think so - the twist lock they carry is for 1/2" belts: both 4L 
>and A.

   No.  Well, yes.  A series belts are 1/2" wide, while 4L series belts are 
12.5mm wide.  So, no.
   Noise on Belts and Pulleys: http://www.gizmology.net/pulleysbelts.htm .

>I've tried getting a belt from Pep Boys, Advance Auto Parts, etc. but 
>everyone wants a car model or an old belt to look at, they can't do 
>anything with specs

   Hardware store rule #1 (which also applies to car parts stores): NEVER 
tell 'em what you're building.

>. . . I guess I'll just overpay for twist lock from mcmaster.

   Try this: take a 1/2" or so rope and tie it around the two pulleys, 
fairly tightly.  Then take it to the car parts store and say "Duh..." (this 
is so they know you're speaking to them) "my car belt broke, I need another 
one."  They'll ask what kind of car, so can say "Duh ... I dunno" and give 
them the rope.  They'll match it with a belt which has a very good chance 
of being right.

   This is how I do it.  I got a belt for my table saw that way.

Bill


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