[AT] List quiet!! Everyone OK, or just waterlogged??? --> Lug bolts, JD A

[John Hall]

Starter gears on the flywheel. Heat them up with the torch, they expand, 
tap them off, flip them around (provided the teeth aren't beveled on one 
side) or heat a new one and drop it on. Go drink a soda  while it cools 
then bolt it back together.

John Hall

On 7/4/2019 4:31 PM, Moe Fretz wrote:
> Flywheel ring gears??
>
> $-------&
> Moe Fretz
>
> L'Orignal
> Ontario, Canada
>
>
> On Thu, Jul 4, 2019 at 3:10 PM John Hall <jtchall at nc.rr.com 
> <mailto:jtchall at nc.rr.com>> wrote:
>
>     Been loosely following this, don't believe I have seen starter gears
>     mentioned--thats about as tractor related as you can get.
>
>     John Hall
>
>     On 7/4/2019 2:48 PM, szabelski at wildblue.net
>     <mailto:szabelski at wildblue.net> wrote:
>     > Another good example would be how they make spoked wooden wagon
>     wheels. After all the pieces are put together they heat up the
>     metal ring to expand it, then cool it off with buckets of water
>     after it’s in place to shrink it back down (and before the whole
>     thing burns up).
>     >
>     > ----- Original Message -----
>     > From: Stephen Offiler <soffiler at gmail.com
>     <mailto:soffiler at gmail.com>>
>     > To: Antique Tractor Email Discussion Group
>     <at at lists.antique-tractor.com <mailto:at at lists.antique-tractor.com>>
>     > Sent: Thu, 04 Jul 2019 07:02:28 -0400 (EDT)
>     > Subject: Re: [AT] List quiet!! Everyone OK, or just
>     waterlogged??? --> Lug bolts, JD A
>     >
>     > Yep.  The washer example is a great way to explain how thermal
>     expansion
>     > works on holes.
>     >
>     > SO
>     >
>     >
>     > On Wed, Jul 3, 2019 at 3:31 PM <szabelski at wildblue.net
>     <mailto:szabelski at wildblue.net>> wrote:
>     >
>     >> No. Thermal expansion is constant.
>     >>
>     >>   Consider a flat washer. If you heat it, it will expand on the
>     outside and
>     >> get larger because the molecules are separating due to the
>     heat. The outer
>     >> circumference is now bigger.
>     >>
>     >> Likewise, the inside expands due to the heat and the internal
>     >> circumference becomes bigger by the same ratio.
>     >>
>     >> Think of what happens to the outer edge. The outer edge gets
>     longer so the
>     >> diameter becomes bigger because it remains circular. Now apply
>     the same
>     >> thought to the inner edge. It gets also gets longer, so again
>     the diameter
>     >> becomes bigger because it remains circular.
>     >>
>     >> The washer also gets thicker due to the heat.
>     >>
>     >> Have you ever seen someone replace the lower pulley on a
>     Farmall Cub? You
>     >> really have to put a lot of pulling force to get it off of the
>     crankshaft.
>     >> In order to get it back on, you have to heat the pulley to
>     somewhere near
>     >> 300 degrees and press it onto the crankshaft. That’s why the
>     crankshaft is
>     >> threaded on the end so you can use a 3/4 inch bolt and washers
>     (or some
>     >> other spacer) to press it on.You have to make sure both pulleys
>     line up
>     >> properly, so you need to get it right while the pulley is hot
>     enough. When
>     >> the pulley cools you can’t just tap it back and forth to line
>     them up, it’s
>     >> on there good.
>     >>
>     >> There are also cases where bearings have to be heated in order
>     to get them
>     >> onto a shaft.
>     >>
>     >> ----- Original Message ----
>     >> From: Mike M <meulenms at gmx.com <mailto:meulenms at gmx.com>>
>     >> To: Antique Tractor Email Discussion Group
>     <at at lists.antique-tractor.com <mailto:at at lists.antique-tractor.com>>
>     >> Sent: Tue, 02 Jul 2019 12:29:37 -0400 (EDT)
>     >> Subject: Re: [AT] List quiet!! Everyone OK, or just
>     waterlogged??? --> Lug
>     >> bolts, JD A
>     >>
>     >> Wouldn't heating the "hole" cause the steel to expand making it
>     smaller?
>     >>
>     >> Just curious.
>     >>
>     >> Mike M
>     >>
>     >> On 7/1/2019 9:10 PM, szabelski at wildblue.net
>     <mailto:szabelski at wildblue.net> wrote:
>     >>> When applying heat you want to heat the item the bolt in
>     threaded into,
>     >> not the bolt.
>     >>
>     >>
>     >> ---
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>     >>
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