Here is the O-ring   
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> RC Airplanes >> RC Jets >> Turbine Clinic >> JetCat Turbine Direct Support >> Here is the O-ring
Page: [1]

Login
Message << Older Topic   Newer Topic >>
Here is the O-ring - 1/18/2006 8:21 PM   
mr_matt



Posts: 7678
Score: 107
Joined: 12/7/2001
Last Login: 3/20/2010
From: Oak Park, CA,
Status: offline 		For the guys that have asked, here is the o-ring in a JetCat starter. If you need to clean it, douse a swap in 99% isopropyl and clean the interface between the o-ring and the compressor nut!

Hope that helps,



Attachments
Click to see fullsize image.
Click for fullsize


_____________________________

Matt
JetCat rep
"Tigers love pepper...."

Hide Signatures
       Post #: 1

RE: Here is the O-ring - 1/18/2006 10:03 PM   
Extractor


 

Posts: 113
Score: 100
Joined: 9/4/2005
Last Login: 3/18/2010
From: Union City, TN, USA
Status: offline 		Thanks Matt.....you get good enough with that mirror , then you can give my job a try........lol....

Regards,

Steve J Harpole DDS

Hide Signatures

(in reply to mr_matt)
       Post #: 2

RE: Here is the O-ring - 1/19/2006 2:27 PM   
Extractor


 

Posts: 113
Score: 100
Joined: 9/4/2005
Last Login: 3/18/2010
From: Union City, TN, USA
Status: offline 		Is the O-ring changeable in the field and if so is this something that can be done most builders??...if so what are the steps for doing so and for starters, what are the symtoms or sounds that one would expect if the o-ring has failed.....Thanks for the picture....

Hide Signatures

(in reply to mr_matt)
       Post #: 3

RE: Here is the O-ring - 1/19/2006 5:33 PM   
ghost_rider



Posts: 4439
Score: 100
Joined: 12/11/2001
Last Login: 3/19/2010
From: Ft Wayne, IN, USA
Status: offline 		Making this one a sticky for easy access.

_____________________________

.....ghost_rider....out....
AMA 9119
“Beware of your so called friends because you know your enemies”

Hide Signatures

(in reply to Extractor)
       Post #: 4

RE: Here is the O-ring - 1/28/2006 4:04 AM   
mr_matt



Posts: 7678
Score: 107
Joined: 12/7/2001
Last Login: 3/20/2010
From: Oak Park, CA,
Status: offline
quote:

ORIGINAL: SHarpoleDDS

Is the O-ring changeable in the field and if so is this something that can be done most builders??...if so what are the steps for doing so and for starters, what are the symtoms or sounds that one would expect if the o-ring has failed.....Thanks for the picture....



Sorry I missed this!

I have never changed an oring at the field. In fact I have never changed one at all!

The starter cone (assembly) has to be removed in order to get to the oring, and that is much more difficult to do at the field than changing the oring.

Most of the time, if the starter is making funny sounds, the oring is either dirty, or somehow the starter is misaligned. Since it is usually the former, you just clean it with isoporpyl.

Hope that helps, and again sorry for the delay, I missed the sticky!

Regards,

_____________________________

Matt
JetCat rep
"Tigers love pepper...."

Hide Signatures

(in reply to Extractor)
       Post #: 5

RE: Here is the O-ring - 1/28/2006 4:16 AM   
rcguy!



Posts: 2530
Score: 100
Joined: 1/25/2002
Last Login: 3/20/2010
From: Chesterland , OH, USA
Status: offline 		Here is my tutorial on replacing a P60 Oring.

http://www.rcuniverse.com/forum/m_3048465/anchors_3048465/mpage_1/key_p60%252C0ring/anchor/tm.htm#3048465

Dave Rigotti

Hide Signatures

(in reply to mr_matt)
       Post #: 6

RE: Here is the O-ring - 8/11/2006 2:17 PM   
baron-noir


 

Posts: 234
Score: 100
Joined: 9/22/2004
Last Login: 3/19/2010
From: Geneva, SWITZERLAND
Status: offline 		Hi,

I just had some feedback that there is a general "issue" with Jetcats about the plastic piece bearing the bendix starter motor (bipode in plastic) in the way that after some time (approx 10 hours of duty) that piece gets *weak* enough so that the bendix starter gets misaligned and starts / shutown becomes a problem. Generally people first think it would be a O-ring problem and then change the O-ring but the real issue is about misalignement more than anything else. As I personnaly never heard anything like that (I own 3 jetcats so I'm not a jetcat basher) i wonder if anybody over here ever heard that theory ?

If proved correct, what is the current plan to solve the problem ? Change the bipode in plastic and put a new one ? Is there a definitive solution in the pipeline like a reinforced plastic bipode or even a metallic one ?

Thanks
Sk

_____________________________

Back by Dope Demand - The King Bees

Hide Signatures

(in reply to rcguy!)
       Post #: 7

RE: Here is the O-ring - 11/30/2007 7:53 PM   
flyinfool1



Posts: 302
Score: 100
Joined: 1/25/2002
Last Login: 3/2/2010
From: Cudahy, WI, USA
Status: offline
quote:

Is the O-ring changeable in the field and if so is this something that can be done most builders??...if so what are the steps for doing so and for starters, what are the symtoms or sounds that one would expect if the o-ring has failed.


Yes this is an old thread.
But I am a jet newbie and it was a big help to me.

Having done this once now, I would not bother to do it at the field.

When the O-Ring goes it is not a sudden thing, it is a gradual deterioration that can be taken care of at your convenience.
I noticed the deterioration over a period of 6 or 7 starts before it got bad enough to be considered hard starting.

The symptoms that I noticed were that the starter motor was unable to spin the turbine up to the idle rpm.
There was a high pitched whine of the starter motor but not the sound of the turbine being spun up and a failed start.

< Message edited by flyinfool1 -- 11/30/2007 7:57 PM >

_____________________________

Jeff Borowski
Gohbee Field Rep

Hide Signatures

(in reply to Extractor)
       Post #: 8

RE: Here is the O-ring - 12/24/2007 10:10 AM   
MartinL



Posts: 67
Score: 100
Joined: 9/19/2003
Last Login: 3/19/2010
From: Almere, NETHERLANDS
Status: offline 		Is there anyway we can correct a misaligned of the starteunit ourselves?

I noticed that on my P80 the purple anodised nut has some marks on it(blank metal visible) caused by the metalpart in which the oring resides.
I think this is caused by a(suddenly?)misaligned starterunit.

The engine has approx 3:30 hrs on it. I yet have to check if the oring has worn out but I doubt it.


_____________________________

"Attitude is everything"


Hide Signatures

(in reply to flyinfool1)
       Post #: 9

RE: Here is the O-ring - 12/29/2007 2:58 PM   
Carroll


 

Posts: 5
Score: 100
Joined: 2/7/2003
Last Login: 3/3/2010
From: Hendersonville, TN, USA
Status: offline 		Hello Martin,

It is hard to tell if the unit needs replacing without seeing it. You might want to take the cowl off and check the security of the screws holding the starter mount to the front of the turbine.

You will void your warranty of you do this so it is your choice. Call Max at JetCat in Germany, he is very helpful or if you are in a pinch I encourage you to contact Bob Wilcox directly.

Call him at:

805-226-8700

Email at:

repair@jetcatusa.com



Regards,

Matt

Hide Signatures

(in reply to MartinL)
       Post #: 10

RE: Here is the O-ring - 12/30/2007 8:13 AM   
MartinL



Posts: 67
Score: 100
Joined: 9/19/2003
Last Login: 3/19/2010
From: Almere, NETHERLANDS
Status: offline 		Hi Matt,

I´ll first have a look at the oring. If I can´t get the alignment right I´ll give Max a call.
About voiding warranty, in this topic there was stated that replacing the oring and thus removing the starterunit wouldn´t void warranty.

Thanks for your help.

Martin


_____________________________

"Attitude is everything"


Hide Signatures

(in reply to Carroll)
       Post #: 11

RE: Here is the O-ring - 12/31/2007 8:37 PM   
mr_matt



Posts: 7678
Score: 107
Joined: 12/7/2001
Last Login: 3/20/2010
From: Oak Park, CA,
Status: offline 		Hi Martin,

Sorry I was referring to removing the front cover. I am not sure if they can tell if you did or not, just don't mention my name!

_____________________________

Matt
JetCat rep
"Tigers love pepper...."

Hide Signatures

(in reply to MartinL)
       Post #: 12

RE: Here is the O-ring - 3/25/2008 3:48 PM   
TheLockman


 

Posts: 11
Score: 100
Joined: 3/19/2005
Last Login: 3/13/2010
From: Lyndhurst, OH, USA
Status: offline 		My O-ring lasted over 150 flights. That is on a P60. And then someone pointed out the fact that if you align the turbine so that the plastic brackets holding the starter are at the 12 and 6 O’clock position then the starter doesn’t droop. I never saw that in the instructions, but after they told me it made a lot of sense. When it is installed the other way the weight of the starter does draw the plastic brackets a little out of alignment.

Hide Signatures

(in reply to mr_matt)
       Post #: 13

RE: Here is the O-ring - 8/31/2008 4:58 AM   
flyinfool1



Posts: 302
Score: 100
Joined: 1/25/2002
Last Login: 3/2/2010
From: Cudahy, WI, USA
Status: offline 		OK, The newest starter that was installed on my P70 by Jetcat uses a different Oring than the spare 6mm ID x 3mm thick I had on hand.
Anyone know what size the new one is?

Yes my starter did droop from its own weight causing the oring to wear out fast.

_____________________________

Jeff Borowski
Gohbee Field Rep

Hide Signatures

(in reply to TheLockman)
       Post #: 14

RE: Here is the O-ring - 3/18/2009 5:14 PM   
ricardinho


 

Posts: 550
Score: 100
Joined: 1/12/2007
Last Login: 3/12/2010
From: pasadena, MD, USA
Status: offline 		i just sent my p70 in for a starter and new compressor wheel. how was yours when you got it back. i heard they do fantastic work there.. just curious.. thanks pat

Hide Signatures

(in reply to flyinfool1)
       Post #: 15

Page:   [1]
All Forums >> RC Airplanes >> RC Jets >> Turbine Clinic >> JetCat Turbine Direct Support >> Here is the O-ring
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.844RCU1