Search the web
Sign In
New User? Sign Up
DIYGasTurbines · Home-built gas turbine jet engines
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Want your group to be featured on the Yahoo! Groups website? Add a group photo to Flickr.

Best of Y! Groups

   Check them out and nominate your group.
Having problems with message search? Fill out this form to ensure your group is one of the first to be migrated to the new message search system.

Messages

  Messages Help
Advanced
Need help....vt50 rebuild   Message List  
Reply | Forward Message #39066 of 44119 |
Re: [DIYGasTurbines] Re: Need help....vt50 rebuild

Hi Nick

"Blisk" is more of a gas turbine term rather than a turbo charger one , and
generally refers to rotating axial componentry rather than radial , where the
blades and disc are cast as one , most of our turbine wheels don't have a disc
as such , just a hub with blades , hence the reason we don't use the term , same
applies for our comp wheel, theres no disc with blades only at the periphery ,
the blades start at the inducer where they are on a hub .

LOL........we have lotsa confusion here at times with terminology because of
our "crossover" between turbos and gasturbines and have tried to keep the turbo
parts as turbo parts for simplicity and ease of understanding , but then use gas
turbine terms for the "engine" where there aren't any turbocharger words to do
the job .

I've even reframed from calling my bikes freepower blisk a blisk
http://www.racketmotorman.turbinebuilder.com/displayimage.php?album=3&pos=5 and
simply call it a freepower wheel to simplify matters .

Looking forward to seeing what you're going to build with that VT-50 :-))

Cheers
John

----- Original Message -----
From: nick huwar
To: DIYGasTurbines@yahoogroups.com
Sent: Thursday, July 24, 2008 11:22 AM
Subject: Re: [DIYGasTurbines] Re: Need help....vt50 rebuild



A blisk is the name form the type of turbines and compressors we use.
It means blade disk.

When I get my vt-50 I'm considering getting it re built. I need to get some
prices though.

Nick


--- On Wed, 7/23/08, grant_blakeley <grant_blakeley@...> wrote:

> From: grant_blakeley <grant_blakeley@...>
> Subject: [DIYGasTurbines] Re: Need help....vt50 rebuild
> To: DIYGasTurbines@yahoogroups.com
> Date: Wednesday, July 23, 2008, 9:13 PM
> Blisks? do you mean blades? if so, no. I rebuilt another
> spare turbo i had picked up just for
> this reason. got it super cheap so it wasn't too bad to
> rebuild it. At least now i have a
> nearly-new turbo with no shaft play at all. None.
>
> -Grant
>
>
> --- In DIYGasTurbines@yahoogroups.com, nick huwar
> <nickhuwar@...> wrote:
> >
> > Where the blisks easy to come by?
> >
> >
> > --- On Wed, 7/23/08, grant_blakeley
> <grant_blakeley@...> wrote:
> >
> > > From: grant_blakeley <grant_blakeley@...>
> > > Subject: [DIYGasTurbines] Re: Need help....vt50
> rebuild
> > > To: DIYGasTurbines@yahoogroups.com
> > > Date: Wednesday, July 23, 2008, 9:07 PM
> > > Well, the turbine and compressor housing and the
> diffusor
> > > plate were the only thing i
> > > could reuse. The turbine wheel/compressor wheel
> are now a
> > > nice paper weight on my
> > > shelf to remind me better engineering is always
> needed,
> > > lol.
> > >
> > > I did use the compressor housing and diffusor
> plate because
> > > they were super clean and
> > > required less work to get into shape, lol.
> > >
> > > -Grant
> > >
> > >
> > >
> > > --- In DIYGasTurbines@yahoogroups.com, nick huwar
> > > <nickhuwar@> wrote:
> > > >
> > > >
> > > > Oh ok
> > > > O ring can be tough getting thing on them.
> What parts
> > > were salvageable on your 50?
> > > >
> > > > Nick
> > > >
> > > >
> > > > --- On Wed, 7/23/08, grant_blakeley
> > > <grant_blakeley@> wrote:
> > > >
> > > > > From: grant_blakeley
> <grant_blakeley@>
> > > > > Subject: [DIYGasTurbines] Re: Need
> help....vt50
> > > rebuild
> > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > Date: Wednesday, July 23, 2008, 8:52 PM
> > > > > Okay, no worries. I got it back on.
> > > > >
> > > > >
> > > > > It wasn't a threaded AL part. It
> was the
> > > diffusor
> > > > > plate. It slips onto the centerhousing
> and
> > > > > there is an o-ring to seal the oil from
> leaking.
> > > > >
> > > > >
> > > > > I guess it just needed to sit
> overnight. I went
> > > out and
> > > > > pushed it on and it went a little, put
> > > > > the v-bands on and it when all the way
> on.
> > > Weird...
> > > > >
> > > > >
> > > > > Overall the rebuild was super easy and
> fast.
> > > Spent a while
> > > > > cleaning the turbine shaft from
> > > > > the seal ring that was burned(?) away
> and caked
> > > on.
> > > > >
> > > > >
> > > > > -Grant
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > --- In DIYGasTurbines@yahoogroups.com,
> nick huwar
> > > > > <nickhuwar@> wrote:
> > > > > >
> > > > > > Hi Grant,
> > > > > >
> > > > > >
> > > > > > I know I don't know a lot
> about
> > > turbo's yet
> > > > > but what comes to mind is, you might
> not
> > > > > get it back off. Also cast AL thread
> don't
> > > take much to
> > > > > strip out the threads.
> > > > > >
> > > > > >
> > > > > > Is it supposed to be that snug?
> > > > > >
> > > > > >
> > > > > > Nick
> > > > > >
> > > > > >
> > > > > > --- On Wed, 7/23/08,
> grant_blakeley
> > > > > <grant_blakeley@> wrote:
> > > > > >
> > > > > > > From: grant_blakeley
> > > <grant_blakeley@>
> > > > > > > Subject: [DIYGasTurbines]
> Need
> > > help....vt50
> > > > > rebuild
> > > > > > > To:
> DIYGasTurbines@yahoogroups.com
> > > > > > > Date: Wednesday, July 23,
> 2008, 6:13 PM
> > > > > > > So i am rebuilding an old
> VT50 of
> > > mine...had oil
> > > > > leaking out
> > > > > > > of both ends.
> > > > > > >
> > > > > > > Now i can't get the
> diffusor plate
> > > on. I
> > > > > remember it
> > > > > > > being a bare to get off, now
> getting it
> > >
> > > > > > > back on it a pain.
> > > > > > >
> > > > > > > Do you guys think if i get a
> long
> > > enough bolt,
> > > > > that i could
> > > > > > > potentially press the
> diffusor plate
> > > > > > > on. The bolt would replace
> the turbine
> > > shaft and
> > > > > pull the
> > > > > > > plate onto the diffusor
> housing
> > > > > > > when tightening the nut?
> > > > > > >
> > > > > > > It is being really stubborn.
> I
> > > don't have
> > > > > access to a
> > > > > > > big press also, which is what
> i'd
> > > imagine
> > > > > > > would be ideal for this.
> > > > > > >
> > > > > > > Any thoughts?
> > > > > > >
> > > > > > > Thanks!
> > > > > > > -Grant
> > > > > >
> > > >
> >





[Non-text portions of this message have been removed]




Thu Jul 24, 2008 2:42 am

racketmotorman
Offline Offline
Send Email Send Email

Forward
Message #39066 of 44119 |
Expand Messages Author Sort by Date

So i am rebuilding an old VT50 of mine...had oil leaking out of both ends. Now i can't get the diffusor plate on. I remember it being a bare to get off, now...
grant_blakeley
Offline Send Email
Jul 23, 2008
10:13 pm

Hi Grant, I know I don't know a lot about turbo's yet but what comes to mind is, you might not get it back off. Also cast AL thread don't take much to strip...
nick huwar
nickhuwar
Offline Send Email
Jul 23, 2008
11:20 pm

Okay, no worries. I got it back on. It wasn't a threaded AL part. It was the diffusor plate. It slips onto the centerhousing and there is an o-ring to seal the...
grant_blakeley
Offline Send Email
Jul 24, 2008
12:52 am

Oh ok O ring can be tough getting thing on them. What parts were salvageable on your 50? Nick...
nick huwar
nickhuwar
Offline Send Email
Jul 24, 2008
12:58 am

Well, the turbine and compressor housing and the diffusor plate were the only thing i could reuse. The turbine wheel/compressor wheel are now a nice paper...
grant_blakeley
Offline Send Email
Jul 24, 2008
1:07 am

Where the blisks easy to come by?...
nick huwar
nickhuwar
Offline Send Email
Jul 24, 2008
1:08 am

Blisks? do you mean blades? if so, no. I rebuilt another spare turbo i had picked up just for this reason. got it super cheap so it wasn't too bad to rebuild...
grant_blakeley
Offline Send Email
Jul 24, 2008
1:13 am

A blisk is the name form the type of turbines and compressors we use. It means blade disk. When I get my vt-50 I'm considering getting it re built. I need to...
nick huwar
nickhuwar
Offline Send Email
Jul 24, 2008
1:22 am

... get some prices though. ... Hi: Have you got a VT-50 already on the way? I'd like to offer you my VT-50 at a competitive price--it was a "factory...
Bill H.
jetbillca
Offline Send Email
Jul 24, 2008
2:13 am

I want to say that if you need the turbine wheel and going to rebuild your VT50, you are waaaay better off buying the nearly-new VT50 from Bill H. That is one...
grant_blakeley
Offline Send Email
Jul 24, 2008
3:50 am

Blisks? do you mean blades? if so, no. I rebuilt another spare turbo i had picked up just for this reason. got it super cheap so it wasn't too bad to rebuild...
grant_blakeley
Offline Send Email
Jul 24, 2008
1:13 am

Hi Nick "Blisk" is more of a gas turbine term rather than a turbo charger one , and generally refers to rotating axial componentry rather than radial , where...
John WALLIS (Racketmo...
racketmotorman
Offline Send Email
Jul 24, 2008
2:42 am

Hi John, I hate to disagree with you but blisk does refer radial wheels and axial wheels that are one solid cast. I got my education from GE aviation engines...
nick huwar
nickhuwar
Offline Send Email
Jul 24, 2008
2:07 pm

Hi Nick LOL....I agree with you that GE aviation would call them blisks being an aviation gasturbine concern ,and to save confusion would call all "wheels"...
John WALLIS (Racketmo...
racketmotorman
Offline Send Email
Jul 24, 2008
10:23 pm

Hi John, Ok so it was a ge thing. I will refrain from calling them that. Hope you didn't think I was trying to butt head, I wasn't? Nick...
nick huwar
nickhuwar
Offline Send Email
Jul 24, 2008
10:34 pm

Learn something new everyday. I wonder who shortened it? "blisk" seems an odd term, I would've never thought that was an abbr. of blade disk. Eric ... being an...
Eric Bass
morkaithered
Online Now Send Email
Jul 25, 2008
12:00 am

Hi Nick LOL....not in the least , we're a friendly lot here, welcome aboard :-)) Cheers John ... From: nick huwar To: DIYGasTurbines@yahoogroups.com Sent:...
John WALLIS (Racketmo...
racketmotorman
Offline Send Email
Jul 24, 2008
10:53 pm

Just wanted to be certian Nick...
nick huwar
nickhuwar
Offline Send Email
Jul 24, 2008
11:25 pm
Advanced

Copyright © 2009 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines - Help