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  #41  
Old 12-21-2020, 07:48 PM
JDA_BTR JDA_BTR is offline
 
Join Date: Dec 2013
Location: Baton Rouge, LA
Posts: 1,214
Default

Took forever for the mail to deliver my new end caps from Rick Robbins even though he shipped mine a day before Billís. Got and installed them this evening. Perfect fit using the vans shroud. Couldnít be happier. I think that the vans end caps should not be used without great caution.
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Ser 140142, RV-14A flying - N1463
Ser 83825, RV-8 building - N8638?
USN Ret, Urologist, AME, Repeat Offender
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  #42  
Old 12-22-2020, 07:12 AM
M McGraw's Avatar
M McGraw M McGraw is offline
 
Join Date: Dec 2012
Location: Greenback, TN
Posts: 554
Default 525 hours

I just finished an oil change and a very close inspection of the heat muffs because of this thread. I do remember having to adjust the muffs at about 50 hours because they moved around a bit. I now have 525 hours with no damage. However, it is now on my list of things to check at each oil change. Thanks to the OP for reminding us to look.
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Marvin McGraw, 5TN4
RV-14. #140039 Complete
Flight hours: 500+
2020 Dues Paid
The Dues Paid note is a reminder for me
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  #43  
Old 12-28-2020, 06:09 PM
billybie billybie is offline
 
Join Date: Aug 2017
Location: MONTGOMERY
Posts: 9
Default Turbo Heat

Maybe this is better?
https://www.aircraftspruce.com/catal...at05-15249.php[/quote]

I had numerous problems with my heat muff on my -7A. End plates kept cracking. Luckily, they never damaged the exhaust. Then I found Turbo Heat--great guy, he happily customized my heat muff to fit my setup (angled inlet port)--problem solved!

Billy Bie
RV-7A
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  #44  
Old 01-20-2021, 06:05 AM
RV6-KPTW RV6-KPTW is offline
 
Join Date: Oct 2014
Location: Sebastian Fl X26
Posts: 120
Default I looked....

Add me to the list of cracked muff ends. I am at 85 hours and pulled the cowl yesterday for other tasks and found the forward muff end cracked in 2 places.
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Dennis Callaghan (X26)
- RV14 sn:140193 - first flight 12/19/2019
- 2000+ hours on my RV6! Sold (so sad...)
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  #45  
Old 01-20-2021, 07:41 PM
Richard Spatz Richard Spatz is offline
 
Join Date: Jan 2015
Location: Maryland
Posts: 15
Default Double End Caps

Dennis,
I have had trouble keeping my heat muffs from moving because I can't keep them tight on the exhaust pipe. So I added a second end cap on each end of both heat muffs "back to back" to the existing end cap. This has stopped the movement.
Since they act like an end cap "doubler", I suspect they might also mitigate the cracking of the end caps? Cheap fix if it works!

Richard
RV-14A
.
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  #46  
Old 01-20-2021, 07:53 PM
JDA_BTR JDA_BTR is offline
 
Join Date: Dec 2013
Location: Baton Rouge, LA
Posts: 1,214
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The thing I didn't like with the Van's end caps when I first installed them is that they seemed to "give" and deform when the pipe clamp was tightened on the end. They just weren't really rigid in my situation. The new ones I got from Rick Robbins fit perfect, and rigidly clamped the pipe without any deformation at all when the pipe clamps were tightened.

It is possible with the Vans that I didn't spring out the little flanges enough to fit the pipe better. Perhaps with more understanding of what is wanted they would work perfectly. For me the Robbins caps worked much better without any fiddling.
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Ser 83825, RV-8 building - N8638?
USN Ret, Urologist, AME, Repeat Offender
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  #47  
Old 01-21-2021, 05:56 AM
RV6-KPTW RV6-KPTW is offline
 
Join Date: Oct 2014
Location: Sebastian Fl X26
Posts: 120
Default

I talked with Rick yesterday and ordered his end caps. I hope to have the same experience and will report back.

Thanks
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Dennis Callaghan (X26)
- RV14 sn:140193 - first flight 12/19/2019
- 2000+ hours on my RV6! Sold (so sad...)
- donation 12/18/2020 * 2
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  #48  
Old 01-25-2021, 10:15 AM
Lizard Lips Lizard Lips is offline
 
Join Date: May 2012
Location: Longview, Texas
Posts: 80
Default

Quote:
Originally Posted by RV6-KPTW View Post
Add me to the list of cracked muff ends. I am at 85 hours and pulled the cowl yesterday for other tasks and found the forward muff end cracked in 2 places.
Mine failed after less than 50 hours. Looking back, the Van's end plates/muffs are very flimsy.

Joe R
RV-14A ... First Flight June 7, 2020.

Robinson R-22 Heli ..... Still learning!
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  #49  
Old 01-26-2021, 01:15 PM
mountainride mountainride is offline
 
Join Date: Jan 2018
Location: Golden, Colorado
Posts: 45
Default

Who can I contact to get the robbins solid ends for my existing vans muffs? I too have already replaced these and would like to get a better sealing muff.

-Jason
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  #50  
Old 01-27-2021, 06:16 AM
RV6-KPTW RV6-KPTW is offline
 
Join Date: Oct 2014
Location: Sebastian Fl X26
Posts: 120
Default

Rick Robbins contact info is in post #32.
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Dennis Callaghan (X26)
- RV14 sn:140193 - first flight 12/19/2019
- 2000+ hours on my RV6! Sold (so sad...)
- donation 12/18/2020 * 2
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