Today's Message Index:
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1. 02:55 AM - Re: CKT exhaust cracks (hanaperrod)
2. 03:45 AM - Re: Re: CKT exhaust cracks (Alan Burrill)
3. 05:06 AM - Re: CKT exhaust cracks (JonathanMilbank)
4. 07:38 AM - Re: CKT exhaust cracks (Area-51)
5. 08:21 AM - Re: Re: CKT exhaust cracks (William Daniell)
Message 1
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| Subject: | Re: CKT exhaust cracks |
I too have had the same problems with my CKT exhaust system. #3and4 stubs badly
cracked, #4 replaced #3 welded 100hrs + still ok. as for the springs!!
I seem to be forever replacing them. I'll try Johnathan's idea with the hope it
works on my A/C. Worth mentioning that all for stubs have different lengths
between the mounting loops. #1 being longest .Surely there should be an optimum
distance for all the stub loops/box?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=507761#507761
Message 2
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| Subject: | Re: CKT exhaust cracks |
I dont have a CKT exhaust however the springs on mine are commonly called Trailer
Springs and work in compression rather than tension.
I note a lot of spring issues appear to be with the tension type.
Alan
Sent from my iPad
> On 24 Aug 2022, at 10:56, hanaperrod <gilrod@tiscali.co.uk> wrote:
>
>
> I too have had the same problems with my CKT exhaust system. #3and4 stubs badly
cracked, #4 replaced #3 welded 100hrs + still ok. as for the springs!!
> I seem to be forever replacing them. I'll try Johnathan's idea with the hope
it works on my A/C. Worth mentioning that all for stubs have different lengths
> between the mounting loops. #1 being longest .Surely there should be an optimum
distance for all the stub loops/box?
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=507761#507761
>
>
>
>
>
>
>
>
>
Message 3
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| Subject: | Re: CKT exhaust cracks |
I just LOVE those compression springs and never had one break on a previous exhaust
system. The problem with CKT headers/tubes is that the attachment loops welded
to them are closed i.e. they don't allow the compression spring loops to
be hooked on. I wonder if there are compression springs with open hooks? Or maybe
link the end of the spring and the closed loop with something?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=507763#507763
Message 4
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| Subject: | Re: CKT exhaust cracks |
This is fascinating... outside the box; why even use springs? Why not just try
lockwire instead? And is it the expansion contraction of the loop itself that
is possibly causing the fatigue crack?? If the loops have no set distance apart
then spring tensions will be all over the place; so are the higher or lower
tensioned spring loops cracking? Additionally there is no support fixing on many
of these rotax 912 muffler boxes; all the modal energy generated is transfered
directly through the header pipes; this is just nuts
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=507767#507767
Message 5
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| Subject: | Re: CKT exhaust cracks |
i dont have anything on my Colombian homemade stainless exhaust joints....
no leaks
William Daniell
+1 786 878 0246
On Wed, Aug 24, 2022, 09:44 Area-51 <goldsteinindustrial@gmail.com> wrote:
> goldsteinindustrial@gmail.com>
>
> This is fascinating... outside the box; why even use springs? Why not jus
t
> try lockwire instead? =F0=9F=A4=B7=F0=9F=8F=BC=8D=99=82=EF=B8=8F
And is it the expansion contraction of the
> loop itself that is possibly causing the fatigue crack?? If the loops hav
e
> no set distance apart then spring tensions will be all over the place; so
> are the higher or lower tensioned spring loops cracking? Additionally the
re
> is no support fixing on many of these rotax 912 muffler boxes; all the
> modal energy generated is transfered directly through the header pipes;
> this is just nuts =F0=9F=A4=B7=F0=9F=8F=BC=8D=99=82=EF=B8=8F
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=507767#507767
>
>
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