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How to fasten this exhaust nut?

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Mike Whisky

Joined: 05 Jun 2006
Posts: 336
Location: Switzerland

Posted: Sun Jun 22, 2008 1:50 pm Post subject: How to fasten this exhaust nut?

Hello There,



it looks as if this hole was drilled too close the exhaust pipe. I can not reach it with a ratchet nut or an jaw wrench. Any idea ho tow to go about it in order to achieve the requested torque (140)



Thanks

Michael

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RV-10 builder (flying)
#511

VHMUM(at)bigpond.com
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Posted: Sun Jun 22, 2008 2:11 pm Post subject: How to fasten this exhaust nut?

1/4 inch drive with extention. I had the same and with the thinner socket i 

was anle to do it



Chris

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AV8ORJWC

Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"

Posted: Sun Jun 22, 2008 2:27 pm Post subject: How to fasten this exhaust nut?

Wow! Challenging picture:



Four ideas. 1)A 1/4" drive "thinwall" deep socket on an extension. 2)A

Torque Adapter(Snap-On makes them). Or 3)a sacrificial crows foot -

modified with your die-grinder and 4)remove the studs and use Hex driven

bolts into the head.  Automotive racing headers use the Hex ones all the

time for such close interference.



Note: I have always found value in using S.Steel exhaust nuts as once

regular nuts corrode, the removal technique down the road is 3X as

challenging for non S.S.  This nut and the related internal star washer

appear 'standard cadmium' plated.



John Cox

#600



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bcondrey

Joined: 03 Apr 2006
Posts: 580

Posted: Sun Jun 22, 2008 2:32 pm Post subject: Re: How to fasten this exhaust nut?

1/4" drive "wobble sockets" work great too.  I've found them locally at Sears.



Bob

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Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Sun Jun 22, 2008 4:16 pm Post subject: How to fasten this exhaust nut?

#1 or # 2. Loosen the nut just enough to be able to move the pipe a

little. Place socket on each nut to ensure the pipe is centered

between the studs.

Every Lycoming exhaust port is just like this.



On Sun, Jun 22, 2008 at 3:22 PM, John Cox <johnwcox(at)pacificnw.com> wrote:

[quote] 



 Wow! Challenging picture:



 Four ideas. 1)A 1/4" drive "thinwall" deep socket on an extension. 2)A

 Torque Adapter(Snap-On makes them). Or 3)a sacrificial crows foot -

 modified with your die-grinder and 4)remove the studs and use Hex driven

 bolts into the head.  Automotive racing headers use the Hex ones all the

 time for such close interference.



 Note: I have always found value in using S.Steel exhaust nuts as once

 regular nuts corrode, the removal technique down the road is 3X as

 challenging for non S.S.  This nut and the related internal star washer

 appear 'standard cadmium' plated.



 John Cox

 #600



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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Sun Jun 22, 2008 4:28 pm Post subject: How to fasten this exhaust nut?

Forgot to mention...my Mooney calls for an AN-310-3 nut there. Key is

to replace those nuts every few hundred hours, as soon as they show

any signs of corrosion.

On Sun, Jun 22, 2008 at 5:11 PM, Kelly McMullen <apilot2(at)gmail.com> wrote:

[quote] #1 or # 2. Loosen the nut just enough to be able to move the pipe a

 little. Place socket on each nut to ensure the pipe is centered

 between the studs.

 Every Lycoming exhaust port is just like this.

 On Sun, Jun 22, 2008 at 3:22 PM, John Cox <johnwcox(at)pacificnw.com> wrote:

> 

>

> Wow! Challenging picture:

>

> Four ideas. 1)A 1/4" drive "thinwall" deep socket on an extension. 2)A

> Torque Adapter(Snap-On makes them). Or 3)a sacrificial crows foot -

> modified with your die-grinder and 4)remove the studs and use Hex driven

> bolts into the head.  Automotive racing headers use the Hex ones all the

> time for such close interference.

>

> Note: I have always found value in using S.Steel exhaust nuts as once

> regular nuts corrode, the removal technique down the road is 3X as

> challenging for non S.S.  This nut and the related internal star washer

> appear 'standard cadmium' plated.

>

> John Cox

> #600

>

> --

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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

pitts_pilot(at)bellsouth.
Guest

Posted: Sun Jun 22, 2008 5:10 pm Post subject: How to fasten this exhaust nut?

John Cox wrote:

 	  Quote: 	
		   



 Wow! Challenging picture:

   

snip
	


 	  Quote: 	
		   Note: I have always found value in using S.Steel exhaust nuts as once

 regular nuts corrode, the removal technique down the road is 3X as

 challenging for non S.S.  This nut and the related internal star washer

 appear 'standard cadmium' plated.

   

Brass nuts also work well without 'bonding' to the stud.
	


Linn

do not archive

[quote] John Cox

 #600



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Mike Whisky

Joined: 05 Jun 2006
Posts: 336
Location: Switzerland

Posted: Mon Jun 23, 2008 12:11 pm Post subject: Re: How to fasten this exhaust nut?

[quote="Kelly McMullen"]#1 or # 2. Loosen the nut just enough to be able to move the pipe a

little. Place socket on each nut to ensure the pipe is centered

between the studs.

Every Lycoming exhaust port is just like this.

Thanks for the advice this one worked very well 



Michael

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_________________
RV-10 builder (flying)
#511

jcumins(at)jcis.net
Guest

Posted: Mon Jun 23, 2008 1:26 pm Post subject: How to fasten this exhaust nut?

Take a very old socket that size and start grinding it down to size to make

it fit then you will always have the socket that will fit.



I have a tool box full of modified tools.

John G. Cumins

President

 

JC'S Interactive Systems

2499 B1 Martin Rd

Fairfield Ca 94533

707-425-7100

707-425-7576 Fax

 

Your Total Technology Solution Provider

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