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Post by pitciblackscotland on Oct 6, 2015 22:51:21 GMT -5
Hi John, Nice work  Looks like you a using a heavy gauge stainless steel sheet for your flame tube? Cheers, Mark. |
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Post by racket on Oct 6, 2015 23:50:12 GMT -5
Hi Mark
LOL , a bit "lightweight" by your standards , only 2 mm for the front and back ends with 1.2 mm 304 sheeting for the inner and outer walls .
1.2 mm is fairly easy to weld unlike the 0.8 mm I used in the 10/98 .
Just gotta get this bottle of argon.
Cheers
John
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Post by racket on Oct 19, 2015 20:13:02 GMT -5
Hi Guys Got the TIG going at last and have been busy Welding the NGV vanes into the "front" wall of the assembly    Flametube inner walls welded to front wall , alignment made easy with the wooden jig   Ngv front wall with vanes welded in and vane heights turned down to "design", and ready to be welded to the rear wall and exhaust stub .   Cheers John |
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Post by pitciblackscotland on Oct 19, 2015 23:31:55 GMT -5
Hi John, Nice work there How did the new tig welder go  Cheers, Mark. |
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Post by racket on Oct 20, 2015 15:17:28 GMT -5
Hi Mark
Welder OK , operator crap .
Hopefully I'll get the two sides welded together this morning, then one of the more complex bits is finished .
Cheers
John
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rexhunt
Member
Joined: August 2012
Posts: 32
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Post by rexhunt on Oct 21, 2015 0:20:55 GMT -5
Hi John,
I know it's a bit off topic. But if you don't mind me asking, where do you get gas from?
Thanks,
Rex
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Post by racket on Oct 21, 2015 1:25:46 GMT -5
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Post by Johansson on Oct 21, 2015 12:38:00 GMT -5
Very nice work with the NGV and flametube John! TIG is awesome for this kind of welding.
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Post by racket on Oct 21, 2015 17:34:25 GMT -5
Hi Anders
Yep , TIG is great , I just wish I had your skill level :-)
Cheers
John
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Post by smithy1 on Oct 21, 2015 18:24:12 GMT -5
Hi Anders Yep , TIG is great , I just wish I had your skill level :-) Cheers John Pppffftttt...yours is great compared to mine.....Mine looks like bird shite dropped from 1000ft...!  Am doing a lot of thin stainless lately, (0.010") I'm finding very difficult to get the correct amperage without blowing holes in stuff  Cheers, Smithy. |
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Post by racket on Oct 21, 2015 18:29:10 GMT -5
Hi Smithy
LOL.............0.010" , it'd be full of holes with my unsteady hand , even my 0.050" stuff suffers .
What are you doing with such thin material ??
Cheers
John
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Post by smithy1 on Oct 21, 2015 19:41:53 GMT -5
Hi Smithy LOL.............0.010" , it'd be full of holes with my unsteady hand , even my 0.050" stuff suffers . What are you doing with such thin material ?? Cheers John I'm just doing a little SS fabrication for a local friend, nothing turbine related though. Am almost out of Argon too, need to get a refill..! I've only got a cheap-ish TIG welder, (200a), but it seems to work fine for all my needs. The tailpipe of my little dragster is suffering badly and has several cracks, it's ~0.040" 304 and my TIG seems to handle it fine....it's me who is the detrimental factor  ...I'm getting better though. A new pipe is on the way though.....I use a 3" catalytic converter similar to this.: www.ebay.com.au/itm/3-INCH-100-CELL-CPSI-CPI-METAL-CORE-RACE-CAT-CONVERTER-STAINLESS-BODY-/151833532852?hash=item2359fbd9b4:g:pswAAOSwl9BWG4yAThen I just punch the "cat" out and I have a near perfectly sized pipe for my little car..! Did a little welding work to the Go-Kart A/B....after Andy's help, I fitted a new gutter type flame holder made from an old C20B #1 Nozzle shield. Had to do a bit of bending/folding and welding to get it how I wanted, now she lights off very nicely indeed. I might need to pull the "fuel control" apart soon too as I have a slight leak/weep from the plunger, nothing drastic though, just annoying. Cheers, Smithy. |
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Post by racket on Oct 21, 2015 20:01:22 GMT -5
Hi Smithy
I think theres a cup seal in the top of the fuel control , the plunger isn't the smoothest :-(
Practice make perfect with the TIG ............LOL, I should be getting my hand in by the time I finish this engine :-)
Cheers
John
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Post by racket on Oct 23, 2015 3:21:17 GMT -5
Progress on the flametube All jigged up and time to tack weld the outer wall in place  A look inside the flametube , the NGV structure doesn't look as "nice" as it should , I ran into unexpected problems , but it'll work OK  Flametube and NGV seems to fit on the engine .  Cheers John |
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Deleted
Joined: January 1970
Posts: 0
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Post by Deleted on Oct 23, 2015 7:13:18 GMT -5
Hi John
All those little bits starting to come together to make one very impressive big bit :-)
Real impressive
All Best
Andy
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Looks like you a using a heavy gauge stainless steel sheet for your flame tube?
...I'm getting better though. A new pipe is on the way though.....I use a 3" catalytic converter similar to this.: