Today's Message Index:
----------------------
1. 05:21 AM - belt tension (Don Walker)
2. 06:05 AM - Re: belt tension (Larry McFarland)
3. 07:52 AM - Re: belt tension (Don Walker)
4. 09:39 AM - Re: belt tension (Larry McFarland)
5. 03:36 PM - Re: belt tension (Kelly Meiste)
6. 08:33 PM - Re: belt tension (rueffy@jetthrust.com)
Message 1
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--> Stratus-List message posted by: "Don Walker" <d3dw@msn.com>
Hey guys,
Do any of you change belt tension for summer and winter? In cold weather my
belt is sloppy with engine cold and makes a little noise until warmed up...then
it is good. In Texas summer it is tight and seems tight as a drum with engine
temps over 195.
I changed bearings at 250 hours because the front were already worn, I think
because the belt was too tight. then set it to its current tension setting. Now
with another 100+ the bearings seem good, but that tension sure seems tight
in the summer. don walker hds td
Message 2
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| Subject: | Re: belt tension |
--> Stratus-List message posted by: Larry McFarland <larrymc@qconline.com>
Hi Don,
I frequently check the tension ( 1/4"@ 20lbs) and wondered about the
same thing. Seemed a bit tighter
this summer. Can't get better than 1/8" at 20lbs. Adjustment is
probably advisable.
Larry McFarland
Don Walker wrote:
>--> Stratus-List message posted by: "Don Walker" <d3dw@msn.com>
>
>Hey guys,
> Do any of you change belt tension for summer and winter? In cold weather my
belt is sloppy with engine cold and makes a little noise until warmed up...then
it is good. In Texas summer it is tight and seems tight as a drum with engine
temps over 195.
> I changed bearings at 250 hours because the front were already worn, I think
because the belt was too tight. then set it to its current tension setting.
Now with another 100+ the bearings seem good, but that tension sure seems tight
in the summer. don walker hds td
>
>
>
>
Message 3
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| Subject: | Re: belt tension |
--> Stratus-List message posted by: "Don Walker" <d3dw@msn.com>
Larry,
My specs call for 1/8" at 20 lbs. with warm engine. How has the 1/4 been working
for you? don
----- Original Message -----
From: Larry McFarland<mailto:larrymc@qconline.com>
To: stratus-list@matronics.com<mailto:stratus-list@matronics.com>
Sent: Tuesday, June 14, 2005 8:04 AM
Subject: Re: Stratus-List: belt tension
--> Stratus-List message posted by: Larry McFarland <larrymc@qconline.com<mailto:larrymc@qconline.com>>
Hi Don,
I frequently check the tension ( 1/4"@ 20lbs) and wondered about the
same thing. Seemed a bit tighter
this summer. Can't get better than 1/8" at 20lbs. Adjustment is
probably advisable.
Larry McFarland
Don Walker wrote:
>--> Stratus-List message posted by: "Don Walker" <d3dw@msn.com<mailto:d3dw@msn.com>>
>
>Hey guys,
> Do any of you change belt tension for summer and winter? In cold weather
my belt is sloppy with engine cold and makes a little noise until warmed up...then
it is good. In Texas summer it is tight and seems tight as a drum with engine
temps over 195.
> I changed bearings at 250 hours because the front were already worn, I think
because the belt was too tight. then set it to its current tension setting.
Now with another 100+ the bearings seem good, but that tension sure seems tight
in the summer. don walker hds td
>
>
>
>
Message 4
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| Subject: | Re: belt tension |
--> Stratus-List message posted by: Larry McFarland <larrymc@qconline.com>
Don,
I'd re-set mine last fall in much cooler temps, because it had a bit of
a rum, rum noise at 2800 rpm. Otherwise it
flew beautifully at all higher rpms. No detectible vibrations or wear
seen on the belt since. I thought things had
tightened a bit since winter, but expansion of the aluminum assembly may
be greater than the core fiber that
make up the belt. The latest measurements seemed tight, but as the
engine warms, perhaps it also lets up some.
Wish there was a better way to know whats happening, but very few seem
to have experienced problems
beyond timely bearing replacement.
Larry
Don Walker wrote:
>--> Stratus-List message posted by: "Don Walker" <d3dw@msn.com>
>
>Larry,
>My specs call for 1/8" at 20 lbs. with warm engine. How has the 1/4 been working
for you? don
> ----- Original Message -----
> From: Larry McFarland<mailto:larrymc@qconline.com>
> To: stratus-list@matronics.com<mailto:stratus-list@matronics.com>
> Sent: Tuesday, June 14, 2005 8:04 AM
> Subject: Re: Stratus-List: belt tension
>
>
> --> Stratus-List message posted by: Larry McFarland <larrymc@qconline.com<mailto:larrymc@qconline.com>>
>
> Hi Don,
> I frequently check the tension ( 1/4"@ 20lbs) and wondered about the
> same thing. Seemed a bit tighter
> this summer. Can't get better than 1/8" at 20lbs. Adjustment is
> probably advisable.
>
> Larry McFarland
>
>
> Don Walker wrote:
>
> >--> Stratus-List message posted by: "Don Walker" <d3dw@msn.com<mailto:d3dw@msn.com>>
> >
> >Hey guys,
> > Do any of you change belt tension for summer and winter? In cold weather
my belt is sloppy with engine cold and makes a little noise until warmed up...then
it is good. In Texas summer it is tight and seems tight as a drum with engine
temps over 195.
> > I changed bearings at 250 hours because the front were already worn, I think
because the belt was too tight. then set it to its current tension setting.
Now with another 100+ the bearings seem good, but that tension sure seems tight
in the summer. don walker hds td
> >
> >
> >
> >
>
>
>
>
Message 5
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| Subject: | Re: belt tension |
--> Stratus-List message posted by: "Kelly Meiste" <kellymeiste@jcwifi.com>
> Do any of you change belt tension for summer and winter? In cold weather
> my belt is sloppy with engine cold and makes a little noise until warmed
> up...then it is good. In Texas summer it is tight and seems tight as a
> drum with engine temps over 195.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Don,
I normally check my belt tension when the engine is cold and found 5/16" def
@ 20 lb to be about right for my Stratus. I leave it there year round
(location is northern IL). This setting seems to be just a little looser
than the 1/8" required when hot, but I want it that way. I flew a rotax 503
with a similar belt drive on my Challenger before building my HD. Like you I
saw many bearing failures by going too tight on the belt, but never seen a
problem with one too loose. I saw one once that was so loose it was almost
falling off the sprockets, the owner said he has always run it that loose
and never had a problem!
I have some belt tensioning info I can send you if you like. It's mainly for
the rotax / Challenger setup, but it does talk about the 601 belt drive also
as a comparison.
Kelly Meiste
601 HD
Message 6
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| Subject: | Re: belt tension |
--> Stratus-List message posted by: rueffy@jetthrust.com
Along with belt tension the subject of bearing failure has come up. What are
the typical signs and warnings of bearing failure?
Brett
Quoting Kelly Meiste <kellymeiste@jcwifi.com>:
> --> Stratus-List message posted by: "Kelly Meiste" <kellymeiste@jcwifi.com>
>
> > Do any of you change belt tension for summer and winter? In cold weather
>
> > my belt is sloppy with engine cold and makes a little noise until warmed
> > up...then it is good. In Texas summer it is tight and seems tight as a
> > drum with engine temps over 195.
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> Don,
> I normally check my belt tension when the engine is cold and found 5/16" def
>
> @ 20 lb to be about right for my Stratus. I leave it there year round
> (location is northern IL). This setting seems to be just a little looser
> than the 1/8" required when hot, but I want it that way. I flew a rotax 503
> with a similar belt drive on my Challenger before building my HD. Like you I
>
> saw many bearing failures by going too tight on the belt, but never seen a
> problem with one too loose. I saw one once that was so loose it was almost
> falling off the sprockets, the owner said he has always run it that loose
> and never had a problem!
> I have some belt tensioning info I can send you if you like. It's mainly for
>
> the rotax / Challenger setup, but it does talk about the 601 belt drive also
>
> as a comparison.
>
> Kelly Meiste
> 601 HD
>
>
>
>
>
>
>
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