A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Soaring
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

IS-28B2 Twin Lark shock absorber replacement/rebuild



 
 
Thread Tools Display Modes
  #1  
Old July 28th 17, 03:11 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 1
Default IS-28B2 Twin Lark shock absorber replacement/rebuild

My Twin Lark (located in West Virginia) needs its shock absorber repaired/overhauled or replaced (it's fully depleted and a nitrogen re-charge did not help). I've received help from others so far, but welcome additional insight, sources, recommendations, etc. on either repairing or replacing this shock absorber quickly. Thanks in advance.

-Brian
Ads
  #2  
Old July 30th 17, 08:02 AM posted to rec.aviation.soaring
Peter Whitehead
external usenet poster
 
Posts: 20
Default IS-28B2 Twin Lark shock absorber replacement/rebuild

On Friday, 28 July 2017 15:11:26 UTC+1, wrote:
My Twin Lark (located in West Virginia) needs its shock absorber repaired/overhauled or replaced (it's fully depleted and a nitrogen re-charge did not help). I've received help from others so far, but welcome additional insight, sources, recommendations, etc. on either repairing or replacing this shock absorber quickly. Thanks in advance.

-Brian


Brian, I obtained a few Blanik shock absorbers in good condition, after the aircraft were scrapped ( mainspar issue). I fitted one to my IS28B2 -Lark quite easily, it only needed the filling valve to be exchanged ( they face in different directions. I would advise using a new copper sealing washer if you do change the valve over). The Lark unit is the same as the Blanik unit, except for this difference.
I suggest you either obtain one similarly. The Blanik dealer in USA ( I have forgotten his name) should be able to provide new seals if you want to refurbish it yourself, though I would ask him to do this for you.
I was offered some new shock absorber units recently, if you wish I can dig out the contact.
Best wishes. Pete
  #3  
Old July 30th 17, 08:10 AM posted to rec.aviation.soaring
Peter Whitehead
external usenet poster
 
Posts: 20
Default IS-28B2 Twin Lark shock absorber replacement/rebuild

On Friday, 28 July 2017 15:11:26 UTC+1, wrote:
My Twin Lark (located in West Virginia) needs its shock absorber repaired/overhauled or replaced (it's fully depleted and a nitrogen re-charge did not help). I've received help from others so far, but welcome additional insight, sources, recommendations, etc. on either repairing or replacing this shock absorber quickly. Thanks in advance.

-Brian


Brian, some further info. Pacific aerosport can sell you a seal kit. This is the part number for the Blank shock absorber Seal Kit for shock absorber
P/N: 9064N L13.BA-01-
  #4  
Old August 12th 17, 01:23 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 2
Default IS-28B2 Twin Lark shock absorber replacement/rebuild

On Friday, July 28, 2017 at 10:11:26 AM UTC-4, wrote:
My Twin Lark (located in West Virginia) needs its shock absorber repaired/overhauled or replaced (it's fully depleted and a nitrogen re-charge did not help). I've received help from others so far, but welcome additional insight, sources, recommendations, etc. on either repairing or replacing this shock absorber quickly. Thanks in advance.

-Brian


Hey, can I piggyback on this post please? I have an IS-29 D2 Lark and the shock absorber needs worked on. The rubber donuts are going to need replaced. Anyone know what I can get replacement donuts for the shock? By the way, Peter, I think you helped me out a while back on getting a new life extension on my Lark. Happy to see you're twin still flying!
Jim.
  #5  
Old October 15th 17, 06:40 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 2
Default IS-28B2 Twin Lark shock absorber replacement/rebuild

Hey all, I called Blannik USA and they sell a rebuild kit for 500$ I'm thinking of getting one. The L-13 has the same shock absorber then the twin lark. I hope this helps. Unless you're just trying to replace the donuts. I'm in the same predicament with a1977 twin Lark.

Christian
Wurtsboro, NY
  #6  
Old October 16th 17, 07:26 PM posted to rec.aviation.soaring
OHM Ω http://aviation.derosaweb.net
external usenet poster
 
Posts: 41
Default IS-28B2 Twin Lark shock absorber replacement/rebuild

Here are some pictures of the rebuild that my club did a few years back on an L23. You might find it useful. The first go at the rebuild and it didn't hold pressure. We found out some seals were reversed. Keep track of the order of things as you tear it apart! http://aviation.derosaweb.net/#blanik

Best of luck, John

 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
IS-28B2 Twin Lark - Service Life Extension Program Pat McCartan Soaring 67 April 18th 17 04:43 PM
IS-28B2 Twin Lark Factory Contact Pat McCartan Soaring 0 October 27th 13 10:19 PM
IAR IS-28B2 Twin Lark Manuals Needed Markus Graeber Soaring 3 July 8th 12 10:54 AM
IS-28B2 Twin Lark status Greg Arnold[_2_] Soaring 4 June 17th 08 03:34 PM
Looking for a Lark IS-28B2 or IS-32 [email protected] Soaring 3 June 2nd 06 06:35 AM


All times are GMT +1. The time now is 08:24 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright 2004-2017 AviationBanter.
The comments are property of their posters.