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Post by racket on Oct 8, 2013 20:45:50 GMT -5
Hi Greg
Heh heh , yeh ,those valves and pistons make for a rough running turbine ..............thats why I stopped using them on my bikes :-)
When I first fitted a turbo to my bike in 1980 I thought this is great, a happy marriage ..........but by 1990 the pistons and valves just weren't happy being married to the turbo so they went their separate ways .................the turbo and I have been happy ever since ;-)
Cheers
John
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ozbooster
Member
Joined: October 2013
Posts: 28 
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Post by ozbooster on Oct 9, 2013 19:29:35 GMT -5
mine have had a few disputes ,but the marriage is still sound
later generation motors with plain bearing cranks and better aftermarket parts, not to mention ceramics all help
taken a few yrs to get the 750 to hold together above 12000rpm at high psi when its at full throttle top gear for about 90 sec
biggest issues were exhaust valves, seats and ports melting , sometimes a overheating sparkplug tip could cause what i call a plasma event
and just cut trenches across the head, through the valve and seat into the port
twice the stem would have a neat C cut into the side
even had one piston and cyl (on an overboost) pierced with a fairly neat hole and very little smearing , i thought that was a neat trick at close to 12000rpm
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Post by Keith LeBlanc on Feb 2, 2014 16:41:30 GMT -5
Hello everyone. Keith LeBlanc, Beech Island SC. Motorcycle dragracer since the late 70's. I don't own a turbine or jet myself, but have always been fascinated by them.
But I know a guy that does.
Thanks for adding me to the membership.
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Post by racket on Feb 2, 2014 17:57:14 GMT -5
Hi Keith
Welcome to the Group :-)
LOL........I'm certain your "contact" will get you into lotsa interesting situations .
Cheers
John
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Post by Keith LeBlanc on Feb 4, 2014 16:55:11 GMT -5
The journey has already begun, racket. Thanks for the welcome.
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gidge348
Senior Member
Joined: September 2010
Posts: 426
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Post by gidge348 on Feb 13, 2014 20:03:57 GMT -5
Some sad news for a new JATO member. Greg (ozbooster) lives in central Victoria and unfortunately his property including all his race bikes were in the way of the terrible fires that went through last week.   Both he and his wife are fine, but the bikes are a total loss including the fastest 750 in the world. |
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Post by racket on Feb 13, 2014 20:41:47 GMT -5
Bugger :-(
It made a mess ,............ good to hear the family is OK
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Post by Johansson on Feb 13, 2014 23:51:14 GMT -5
Damn, sorry to hear that.  |
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Post by Richard OConnell on Feb 14, 2014 17:40:04 GMT -5
Very sorry to hear it.. but its good that everyone made it out okay.
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JM 765
New Member
Joined: April 2014
Posts: 2
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Post by JM 765 on Apr 16, 2014 7:30:56 GMT -5
The JATO staff would like to welcome all new members of the JATO forum. This board was founded to satisfy the need for organization across multiple jet and turbine communities. I'll take out a moment to introduce myself and encourage others to do the same in a reply. hi, i m new member i like to start building jet engine , please tell me which thread give complete description, of jet building for beginners |
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Post by proffrocket on Apr 25, 2014 7:10:16 GMT -5
Hello all.
Glad to have found this forum. I am just starting to get back into turbines after 3 years.. My name is Mark Taylor, I am in the UK, Have been a qualified welder for too long!, mig and tig, Got into turbines years ago when I bought a scrap Derwent engine, restored it to running condition and bolted it to a road legal truck. Recently had to sell it due to space limitations. I have a Gnome engine and a few Williams WR 24-7 engines left to play with. Some very knowledgable people on this forum, so hopefully I can get some help to get the Gnome running, I have another project in my head which is trying to get out !!
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Post by Johansson on Apr 25, 2014 10:59:40 GMT -5
Welcome! Glad to have you onboard, you seem to have lots of fun in your shed.  I´ve always wanted a "real" engine like a Derwent to play around with but I´ll have to make do with the home built engines instead. Cheers! /Anders |
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mondo
New Member
Joined: November 2014
Posts: 7
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Post by mondo on Nov 16, 2014 11:19:21 GMT -5
Hi All I'm Mondo from southeast kent UK, I know some of you already from various sites like GTBA, HMEM/Madmodder, CNC Zone and ofcourse YouTube ( where I stumbled across Racket, Chris Krug ), Followed Anders on Mobacken. Started with a small Pulsejet that then led onto a homebuilt KJ a couple of years back. Recently saw an Artouste on the Bay and wondered how much work it would take to convert (so thought I'd nose around here for some answers), instead I read Rackets 10/98 and now re enthused with home builds (ah man  ) . Got myself a fair workshop with manual and CNC but just like you guys , a serious lack of spare time. hoping sometime soon to make something similar to the 10/98 once life eases a little, love the Jetbike builds. Great resource you got yourselves here fella's , Well done Cheers Mondo |
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Post by racket on Nov 16, 2014 14:28:18 GMT -5
Hi Mondo
Welcome to the Group :-)
Yep, the Sites got plenty of interesting stuff .
Looking forward to seeing a Build one day soon
Cheers
John
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Post by Johansson on Nov 16, 2014 15:45:36 GMT -5
Welcome Mondo! Just curious, how do you manage to make anything out of the Swedish jibberish on our Mobacken website? |
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) . Got myself a fair workshop with manual and CNC but just like you guys , a serious lack of spare time.