Deleted
Joined: January 1970
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Post by Deleted on Jan 10, 2019 16:23:38 GMT -5
Hi Andy Stainless steel ?? All the best for Sunday :-) Cheers John Yep it is made from stainless...  You mite like this picture  Yep, hoping thing all fit together |
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Post by racket on Jan 10, 2019 18:07:55 GMT -5
Looking sweet :-)
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Joined: January 1970
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Post by Deleted on Jan 13, 2019 19:17:22 GMT -5
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Post by racket on Jan 13, 2019 19:29:40 GMT -5
Hi Andy
LOL......A very long one I'd recon , but all looking good :-)
Cheers
John
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Deleted
Joined: January 1970
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Post by Deleted on Jan 15, 2019 20:16:41 GMT -5
Hi Andy LOL......A very long one I'd recon , but all looking good :-) Cheers John Thanks John A little spin for you guys All The Best Andy |
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Post by Johansson on Jan 16, 2019 0:26:26 GMT -5
Really really nice Andy! This is going to be one awesome engine!
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Joined: January 1970
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Post by Deleted on Jan 16, 2019 3:03:21 GMT -5
Really really nice Andy! This is going to be one awesome engine! Thanks Anders.... no more awesome than yours or Johns. Still a few little tweaks needed, you no what its like, you tweak one bit and find you have to do 2 more to make all things write All The Best Andy |
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monty
Senior Member
Currently being spanked by mother nature.......
Joined: September 2018
Posts: 400
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Post by monty on Jan 16, 2019 9:26:17 GMT -5
Andy,
This thing is really looking great!!
What size O-ring are you using to seal the outer case? I'm trying to decide what diameter to use. Right now I'm using a 3mm, but I'm not sure if that will be enough to take up the movement and slop in the assembly.
Monty
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Post by racket on Jan 16, 2019 15:49:58 GMT -5
Hi Monty
I use a 1/8" dia silicone O'ring for sealing my 12/118 engine's case , they tend to swell in size after a bit of use and exposure to fuel so I make sure its a a bit smaller in diameter than the case ID and has to be stretched over the cover's recess , a bit of silicone spray on the o'ring and can ID before assembly and she slides together nicely .
Cheers
John
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Post by finiteparts on Jan 17, 2019 22:53:22 GMT -5
Andy,
That engine is looking great! I really like the one piece NGVs...when I get some free time, I was going to type up a post on typical welded joint design. I see a lot of partial penetration welds on here that of course crack after a few heat cycles, because they have a built-in flaw right from the start.
Since I have spec'ed out hundreds of TIG, E-beam and Laser welds in my career, I know that achieving a durable and long-lifed, full-penetration weld on hot gas path components is tough. Aerospace guys spend a lot of time and money to make sure that their welds are solid and crack free. Your NGV should give you much more reliable life.
Thanks for sharing!
Chris
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Deleted
Joined: January 1970
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Post by Deleted on Feb 4, 2019 8:43:26 GMT -5
Andy, That engine is looking great! I really like the one piece NGVs...when I get some free time, I was going to type up a post on typical welded joint design. I see a lot of partial penetration welds on here that of course crack after a few heat cycles, because they have a built-in flaw right from the start. Since I have spec'ed out hundreds of TIG, E-beam and Laser welds in my career, I know that achieving a durable and long-lifed, full-penetration weld on hot gas path components is tough. Aerospace guys spend a lot of time and money to make sure that their welds are solid and crack free. Your NGV should give you much more reliable life. Thanks for sharing! Chris Thanks Chris So still busy.... on to little jobs, well not so little just little parts. It has taken most of the weekend, but here it is the fuel rail, a short test to see if all are flowing Still plenty to do, bosses for oil in and out, get rota balanced, the sort the kart chassis ..... but things are moving forward All The Best Andy |
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Post by racket on Feb 4, 2019 15:48:53 GMT -5
Good one Andy :-)
Slowly slowly , one job at a time and eventually they're all done , thats one of the fiddlier ones over with .
Cheers
John
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Deleted
Joined: January 1970
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Post by Deleted on Feb 8, 2019 18:37:21 GMT -5
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Post by Deleted on Feb 17, 2019 14:45:47 GMT -5
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Post by Johansson on Feb 17, 2019 15:10:43 GMT -5
Awesome stuff Andy!
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