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MTA
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 Posted: Tue Jun 12, 2007 8:01 pm Post subject: 'Chuff' pipe |
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A while ago I think someone on here mentioned how you can give your Mamod engine a good sound when running, I believe it is called a 'Chuff pipe'. Can someone post up here how to do it?
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Chris
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| Posted: Tue Jun 12, 2007 8:13 pm Post subject: |
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That was me.
I don't know how you do it. But MM pointed out that the mamod locos do chuff when working harder. I notice with Arthur that he does do a decent chuff when pulling lots of wagons.
I think you just need to restrict the exhaust to get more of a chuff, but I really don't know so don't trust me!
I am going to have a go at making an exhaust regulator (which I will undoubtedly mess up). Wondering if that might also make it chuff more.
Let me know if you find out.
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steamyjim
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| Posted: Tue Jun 12, 2007 8:18 pm Post subject: |
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From what i have read it seems you get a peice of copper pipe. Clamp one enf up so no exhauset can escape. Then file a small slot in it so that some does escape but its restricted. Then slide over the exhaust pipe.
I think
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Chris
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| Posted: Tue Jun 12, 2007 8:19 pm Post subject: |
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| steamyjim wrote: | From what i have read it seems you get a peice of copper pipe. Clamp one enf up so no exhauset can escape. Then file a small slot in it so that some does escape but its restricted. Then slide over the exhaust pipe.
I think |
Pretty much what I thought.
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Mamodman123
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| Posted: Tue Jun 12, 2007 9:14 pm Post subject: |
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Thats pretty much it!
It will slow the loco down I would have thought 
don't forget that these are only toys at the end of the day
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Chris
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| Posted: Tue Jun 12, 2007 9:17 pm Post subject: |
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| Mamodman123 wrote: | Thats pretty much it!
It will slow the loco down I would have thought
don't forget that these are only toys at the end of the day |
No bad thing though!
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Mamodman123
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| Posted: Tue Jun 12, 2007 9:19 pm Post subject: |
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| Chris wrote: | | Mamodman123 wrote: | Thats pretty much it!
It will slow the loco down I would have thought
don't forget that these are only toys at the end of the day |
No bad thing though! |
Might reduce power aswell? Depends on what you plan on using the loco for
you don't try it, you don't know 
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SillyBilly
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| Posted: Tue Jun 12, 2007 9:50 pm Post subject: |
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| Perhaps just closing up the end of the exhaust pipe so it had a finer gap but not to fine? Surely this is the same idea as discussed in the 'chimney regulator' thread? |
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Mamodman123
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| Posted: Tue Jun 12, 2007 9:51 pm Post subject: |
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| SillyBilly wrote: | | Perhaps just closing up the end of the exhaust pipe so it had a finer gap but not to fine? Surely this is the same idea as discussed in the 'chimney regulator' thread? |
Yes pretty much.
Some later locos had solder inside the regulator handles to make the grooves more shallow 
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Titan
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| Posted: Tue Jun 12, 2007 10:46 pm Post subject: |
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| Mamodman123 wrote: |
Some later locos had solder inside the regulator handles to make the grooves more shallow |
Sadly I think that was more likely to be by accident due to poor quality control rather than intentional !!
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Mamodman123
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| Posted: Tue Jun 12, 2007 10:48 pm Post subject: |
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| Titan wrote: | | Mamodman123 wrote: |
Some later locos had solder inside the regulator handles to make the grooves more shallow |
Sadly I think that was more likely to be by accident due to poor quality control rather than intentional !! |
Probably, what were they soldering though?
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Chris
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| Posted: Wed Jun 13, 2007 8:33 am Post subject: |
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Part of the idea of the exhaust regulator I am going to try and make is that it will also act as a chuff pipe.
So at worst it will all go wrong and I will put the loco back how it is. At best it will chuff better and have more control. As a middle ground I might not have more control but might have a better chuff.
Anyway, ordered some pipe and will have an experiment.
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Mamodman123
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| Posted: Wed Jun 13, 2007 10:29 am Post subject: |
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| Chris wrote: | Part of the idea of the exhaust regulator I am going to try and make is that it will also act as a chuff pipe.
So at worst it will all go wrong and I will put the loco back how it is. At best it will chuff better and have more control. As a middle ground I might not have more control but might have a better chuff.
Anyway, ordered some pipe and will have an experiment. |
Sounds good Chris!
Looking forward to seeing how it goes
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Chris
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| Posted: Wed Jun 13, 2007 10:33 am Post subject: |
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| Mamodman123 wrote: | | Chris wrote: | Part of the idea of the exhaust regulator I am going to try and make is that it will also act as a chuff pipe.
So at worst it will all go wrong and I will put the loco back how it is. At best it will chuff better and have more control. As a middle ground I might not have more control but might have a better chuff.
Anyway, ordered some pipe and will have an experiment. |
Sounds good Chris!
Looking forward to seeing how it goes |
Or doesn't go!  
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Mamodman123
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| Posted: Wed Jun 13, 2007 10:52 am Post subject: |
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| Chris wrote: | | Mamodman123 wrote: | | Chris wrote: | Part of the idea of the exhaust regulator I am going to try and make is that it will also act as a chuff pipe.
So at worst it will all go wrong and I will put the loco back how it is. At best it will chuff better and have more control. As a middle ground I might not have more control but might have a better chuff.
Anyway, ordered some pipe and will have an experiment. |
Sounds good Chris!
Looking forward to seeing how it goes |
Or doesn't go! |
Hopefully it does
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