From: hls on

"jim beam" <me(a)privacy.net> wrote in message
>
> incorrect on two counts:
>
> 1. rubber has a positive linear thermal expansion coefficient, not
> negative.
>

I remember there were rubber band "engines" run by heat. And those "rubber"
bands did contract when heated. Now, I dont intend to go back and research
all this, but, IIRC, there is a whiff of truth in the basic statement.

Let's just say that there are rubbers (latices) and elastomeric compounds
which we
call rubber.

I am interested in the concept, but not enough to make an issue of it.

BUT, his concept is flawed. The problem is almost certainly a worn or
improperly
tensioned belt.


From: jim beam on
On 02/18/2010 06:15 PM, hls wrote:
>
> "jim beam" <me(a)privacy.net> wrote in message
>>
>> incorrect on two counts:
>>
>> 1. rubber has a positive linear thermal expansion coefficient, not
>> negative.
>>
>
> I remember there were rubber band "engines" run by heat. And those "rubber"
> bands did contract when heated. Now, I dont intend to go back and research
> all this, but, IIRC, there is a whiff of truth in the basic statement.

for some temperature ranges, yes indeed. but the belt our friend was
describing doesn't experience that, partially because it's not that kind
of "rubber", but mostly because of the reinforcing fibers.


>
> Let's just say that there are rubbers (latices) and elastomeric
> compounds which we
> call rubber.
>
> I am interested in the concept, but not enough to make an issue of it.
>
> BUT, his concept is flawed. The problem is almost certainly a worn or
> improperly
> tensioned belt.
>
>


--
nomina rutrum rutrum
From: cuhulin on
Try adjusting the belt on a VW aircooled engine.You are in for a Treat!
cuhulin

From: condor_222 on
Right, it's not a timing belt. My bad. Good catch.

Thanks for the detailed instructions. I appreciate it!
I'll see if there are tools around to do it on my own.

Some misunderstandings about rubber and cold.

I'll make another post about what really cold
weather actually does to cars in the winter.