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Will an IO-540-C4B5 narrow deck work for an RV-10

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noconwud(at)earthlink.net
Guest

Posted: Wed Oct 07, 2009 2:16 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

<![if !supportLists]><![endif]><![if !supportLists]><![endif]> I bought an IO-540-C4B5 narrow deck, and am  planning to have it overhauled.  However, last night at an EAA meeting,  someone told me they heard narrow decks were no good, but could not offer  why.  I bought the engine from someone who had been building a 10 but lost  interest, and I never considered the possibility that a narrow deck might not be  suitable, but I'm not certain why that would be.

  

 Is a narrow deck C4B5 acceptable for a 10?  I  hope someone else has one...

  

 Thanks

  

 Andy

   [quote][b]

rnewman(at)tcwtech.com
Guest

Posted: Wed Oct 07, 2009 3:12 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

<![if !supportLists]><![endif]><![if !supportLists]><![endif]> Andy,    I'm using an O-540-E4B5 out  of a cherokee 6-260.   Its a narrow deck.   I fits the  engine mount perfectly.   The only thing I remember as being a  question is which mounting tabs are on the engine.  These are easily  changeable if you have the wrong ones.   One note,  I'm not using  Van's prepackaged firewall forward kit,  I'm on my own for these various  accessories.  Also, I'm converting to fuel injection via the airflow  performance conversion kit.

  

  

 Bob Newman

 40176

  

 www.tcwtech.com

  

  

  

 [quote]   ---

n223rv(at)wolflakeairport
Guest

Posted: Wed Oct 07, 2009 3:12 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

Yep, no worries, works great!



Sent from my iPhone



On Oct 7, 2009, at 6:06 AM, "Andrew Johnson" <noconwud(at)earthlink.net (noconwud(at)earthlink.net)> wrote:



[quote]  I bought an IO-540-C4B5 narrow deck, and am  planning to have it overhauled.  However, last night at an EAA meeting,  someone told me they heard narrow decks were no good, but could not offer  why.  I bought the engine from someone who had been building a 10 but lost  interest, and I never considered the possibility that a narrow deck might not be  suitable, but I'm not certain why that would be.

  

 Is a narrow deck C4B5 acceptable for a 10?  I  hope someone else has one...

  

 Thanks

  

 Andy

    	  Quote: 	
		  

	


[b]

Kelly McMullen

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

Posted: Wed Oct 07, 2009 4:46 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

The concerns are mostly theoretical at this point. I don't know if

Lycoming still makes major replacement parts such as crankcase.

Cylinders should be no issue, along with most other standard

replacement items. Lycoming stopped making new narrow deck engines

about 30 years ago, but as far as I know they have been supporting

them pretty well.

In fact, they used a narrow deck engine for the certification mule of

an IO390 in a Mooney 201 this year, as it was on display at OSH. If

you can get a quality overhaul of the engine now, you should be good

to go for 15-20 years. On the other hand, Lycoming has refused to take

as cores for exchange engines of either variety that have not been

back to the factory for overhaul within the past 36 years.



On Wed, Oct 7, 2009 at 3:06 AM, Andrew Johnson <noconwud(at)earthlink.net> wrote:

 	  Quote: 	
		   I bought an IO-540-C4B5 narrow deck, and am planning to have it overhauled.


	


 	  Quote: 	
		  

 Is a narrow deck C4B5 acceptable for a 10?  I hope someone else has one...



 Thanks



 Andy

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

coop85(at)verizon.net
Guest

Posted: Wed Oct 07, 2009 7:44 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

The C4B5 is almost identical to the D4A5 Van’s is pushing, primary difference is a lower RPM rating creating 10 less HP.  They are both narrow deck so I don’t know where the concern at the meeting came from.  There was a previous thread discussing the differences between the C4B5 and D4A5 that you might want to search for.  From what I understand it’s the wide deck engines you should shy away from.   

   

FWIW I had a C4B5 on my Skybolt and it was great.  

   

Marcus  

40286  

       

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Andrew Johnson

 Sent: Wednesday, October 07, 2009 6:06 AM

 To: rv10-list(at)matronics.com

 Subject: Will an IO-540-C4B5 narrow deck work for an RV-10  

  

  

     

I bought an IO-540-C4B5 narrow deck, and am planning to have it overhauled.  However, last night at an EAA meeting, someone told me they heard narrow decks were no good, but could not offer why.  I bought the engine from someone who had been building a 10 but lost interest, and I never considered the possibility that a narrow deck might not be suitable, but I'm not certain why that would be.  

    

   

    

Is a narrow deck C4B5 acceptable for a 10?  I hope someone else has one...  

    

   

    

Thanks  

    

   

    

Andy  

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        [quote][b]

rv10builder(at)verizon.ne
Guest

Posted: Wed Oct 07, 2009 8:20 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

You need new ears to fit the standard Van's mount, Narrow  Deck, from my research, are less prone to cracking than the newer wide deck, Eci  provides great cylinders to go into these engines (expect to do baffling  work for the tapered cylinders) as does Lycoming you can run the engine from  2525 (at) 250hp to 2700(at) 260 without an issue and in the end it's the same  engine.

 If you need a great Overhaul shop let me know off  list.

 Bottom line, you'll be fine with what you have.

  

  



  From: Andrew Johnson (noconwud(at)earthlink.net) 

 Sent: Wednesday, October 07, 2009 3:06 AM

 To: rv10-list(at)matronics.com (rv10-list(at)matronics.com) 

 Subject: Will an IO-540-C4B5 narrow deck work for an  RV-10

 



 I bought an IO-540-C4B5 narrow deck, and am  planning to have it overhauled.  However, last night at an EAA meeting,  someone told me they heard narrow decks were no good, but could not offer  why.  I bought the engine from someone who had been building a 10 but lost  interest, and I never considered the possibility that a narrow deck might not be  suitable, but I'm not certain why that would be.

  

 Is a narrow deck C4B5 acceptable for a 10?  I  hope someone else has one...

  

 Thanks

  

 Andy

[quote]



href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c

[b]

n223rv(at)wolflakeairport
Guest

Posted: Wed Oct 07, 2009 10:40 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

Yes, that is correct about the ears, I forgot about that.  The Rocket guys use the smaller ears and often have larger ears available....  I was able to swap mine out (even trade) with them.  You may have similar luck with John Harmon or Mark Frederick, or with a posting on the rocket or RV-4 list....

-Mike Kraus  



Sent from my iPhone



On Oct 7, 2009, at 12:19 PM, "Pascal" <rv10builder(at)verizon.net (rv10builder(at)verizon.net)> wrote:



[quote]  You need new ears to fit the standard Van's mount, Narrow  Deck, from my research, are less prone to cracking than the newer wide deck, Eci  provides great cylinders to go into these engines (expect to do baffling  work for the tapered cylinders) as does Lycoming you can run the engine from  2525 (at) 250hp to 2700(at) 260 without an issue and in the end it's the same  engine.

 If you need a great Overhaul shop let me know off  list.

 Bottom line, you'll be fine with what you have.

  

  



  From: Andrew Johnson (noconwud(at)earthlink.net) 

 Sent: Wednesday, October 07, 2009 3:06 AM

 To: [url=mailto:rv10-list(at)matronics.com]rv10-list(at)matronics.com (rv10-list(at)matronics.com)[/url] 

 Subject: Will an IO-540-C4B5 narrow deck work for an  RV-10

 



 I bought an IO-540-C4B5 narrow deck, and am  planning to have it overhauled.  However, last night at an EAA meeting,  someone told me they heard narrow decks were no good, but could not offer  why.  I bought the engine from someone who had been building a 10 but lost  interest, and I never considered the possibility that a narrow deck might not be  suitable, but I'm not certain why that would be.

  

 Is a narrow deck C4B5 acceptable for a 10?  I  hope someone else has one...

  

 Thanks

  

 Andy

 	  Quote: 	
		  



href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c



	


[b]

kdbelue(at)charter.net
Guest

Posted: Wed Oct 07, 2009 11:03 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

I think you have that backwards. My IO-540-C4B5 had mounting ears with large holes and I had to swap them for ears with the small holes to fit the engine mount.

Kevin Belue

RV10 flying

RV6A flying



Sent from my iPhone



On Oct 7, 2009, at 1:36 PM, Michael Kraus <n223rv(at)wolflakeairport.net (n223rv(at)wolflakeairport.net)> wrote:



[quote]Yes, that is correct about the ears, I forgot about that.  The Rocket guys use the smaller ears and often have larger ears available....  I was able to swap mine out (even trade) with them.  You may have similar luck with John Harmon or Mark Frederick, or with a posting on the rocket or RV-4 list....

-Mike Kraus  



Sent from my iPhone



On Oct 7, 2009, at 12:19 PM, "Pascal" <[url=mailto:rv10builder(at)verizon.net]rv10builder(at)verizon.net (rv10builder(at)verizon.net)[/url]> wrote:



 	  Quote: 	
		    You need new ears to fit the standard Van's mount, Narrow  Deck, from my research, are less prone to cracking than the newer wide deck, Eci  provides great cylinders to go into these engines (expect to do baffling  work for the tapered cylinders) as does Lycoming you can run the engine from  2525 (at) 250hp to 2700(at) 260 without an issue and in the end it's the same  engine.

 If you need a great Overhaul shop let me know off  list.

 Bottom line, you'll be fine with what you have.

  

  



  From: Andrew Johnson (noconwud(at)earthlink.net) 

 Sent: Wednesday, October 07, 2009 3:06 AM

 To:  (rv10-list(at)matronics.com)[url=mailto:rv10-list(at)matronics.com]rv10-list(at)matronics.com (rv10-list(at)matronics.com)[/url] 

 Subject: Will an IO-540-C4B5 narrow deck work for an  RV-10

 



 I bought an IO-540-C4B5 narrow deck, and am  planning to have it overhauled.  However, last night at an EAA meeting,  someone told me they heard narrow decks were no good, but could not offer  why.  I bought the engine from someone who had been building a 10 but lost  interest, and I never considered the possibility that a narrow deck might not be  suitable, but I'm not certain why that would be.

  

 Is a narrow deck C4B5 acceptable for a 10?  I  hope someone else has one...

  

 Thanks

  

 Andy

 	  Quote: 	
		  



href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c



	






 href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/contribution



	


[b]

Rhonda(at)bpaengines.com
Guest

Posted: Wed Oct 07, 2009 11:09 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

Both engines are fine, cost the same to overhaul and will work in the -10.  The engine may/may not have a lightening hole crankshaft which is fine but not suitable for aerobatics (shouldn’t be a problem in the -10.)  The cases have a number of overhauls that can be done by an approved facility and most of them will have cases if you ever have to replace them.  The only difficult major component to replace at this time is the crankshaft.  Used serviceable crankshafts are very difficult to find at this time, and new ones are very pricey.  OEM flat tappets are also currently difficult to get but PMA are available.  

   

If the –C4B5 came from an Aztec, the mounts will be the larger hole and will need to be swapped to the smaller ear mounts.  

   

If you decide not to use it, let me know.  I’ll by the core from you! J  

   

Good luck.  

   

Rhonda Barrett-Bewley  

Barrett Precision Engines, Inc.  

2870-B N. Sheridan Rd.  

Tulsa, OK   74115  

(918) 835-1089 phone  

(918) 835-1754 fax  

         

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Marcus Cooper

 Sent: Wednesday, October 07, 2009 10:39 AM

 To: rv10-list(at)matronics.com

 Subject: RE: Will an IO-540-C4B5 narrow deck work for an RV-10  

  

   

The C4B5 is almost identical to the D4A5 Van’s is pushing, primary difference is a lower RPM rating creating 10 less HP.  They are both narrow deck so I don’t know where the concern at the meeting came from.  There was a previous thread discussing the differences between the C4B5 and D4A5 that you might want to search for.  From what I understand it’s the wide deck engines you should shy away from.   

   

FWIW I had a C4B5 on my Skybolt and it was great.  

   

Marcus  

40286  

       

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Andrew Johnson

 Sent: Wednesday, October 07, 2009 6:06 AM

 To: rv10-list(at)matronics.com

 Subject: Will an IO-540-C4B5 narrow deck work for an RV-10  

  

  

     

I bought an IO-540-C4B5 narrow deck, and am planning to have it overhauled.  However, last night at an EAA meeting, someone told me they heard narrow decks were no good, but could not offer why.  I bought the engine from someone who had been building a 10 but lost interest, and I never considered the possibility that a narrow deck might not be suitable, but I'm not certain why that would be.  

    

   

    

Is a narrow deck C4B5 acceptable for a 10?  I hope someone else has one...  

    

   

    

Thanks  

    

   

    

Andy  

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		     http://www.matronics.com/Navigator?RV10-List 	
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      [quote][b]

n223rv(at)wolflakeairport
Guest

Posted: Thu Oct 08, 2009 3:45 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

Yep, you're right I had it backwards, thanks for the catch.  But I wanted to make the point that we can swap them with the rocket builders.....  



Sent from my iPhone



On Oct 7, 2009, at 2:57 PM, Kevin Belue <kdbelue(at)charter.net (kdbelue(at)charter.net)> wrote:



[quote]I think you have that backwards. My IO-540-C4B5 had mounting ears with large holes and I had to swap them for ears with the small holes to fit the engine mount.

Kevin Belue

RV10 flying

RV6A flying



Sent from my iPhone



On Oct 7, 2009, at 1:36 PM, Michael Kraus <[url=mailto:n223rv(at)wolflakeairport.net]n223rv(at)wolflakeairport.net (n223rv(at)wolflakeairport.net)[/url]> wrote:



 	  Quote: 	
		  Yes, that is correct about the ears, I forgot about that.  The Rocket guys use the smaller ears and often have larger ears available....  I was able to swap mine out (even trade) with them.  You may have similar luck with John Harmon or Mark Frederick, or with a posting on the rocket or RV-4 list....

-Mike Kraus  



Sent from my iPhone



On Oct 7, 2009, at 12:19 PM, "Pascal" < (rv10builder(at)verizon.net)[url=mailto:rv10builder(at)verizon.net]rv10builder(at)verizon.net (rv10builder(at)verizon.net)[/url]> wrote:



 	  Quote: 	
		    You need new ears to fit the standard Van's mount, Narrow  Deck, from my research, are less prone to cracking than the newer wide deck, Eci  provides great cylinders to go into these engines (expect to do baffling  work for the tapered cylinders) as does Lycoming you can run the engine from  2525 (at) 250hp to 2700(at) 260 without an issue and in the end it's the same  engine.

 If you need a great Overhaul shop let me know off  list.

 Bottom line, you'll be fine with what you have.

  

  



  From: Andrew Johnson (noconwud(at)earthlink.net) 

 Sent: Wednesday, October 07, 2009 3:06 AM

 To:  (rv10-list(at)matronics.com) (rv10-list(at)matronics.com)[url=mailto:rv10-list(at)matronics.com]rv10-list(at)matronics.com (rv10-list(at)matronics.com)[/url] 

 Subject: Will an IO-540-C4B5 narrow deck work for an  RV-10

 



 I bought an IO-540-C4B5 narrow deck, and am  planning to have it overhauled.  However, last night at an EAA meeting,  someone told me they heard narrow decks were no good, but could not offer  why.  I bought the engine from someone who had been building a 10 but lost  interest, and I never considered the possibility that a narrow deck might not be  suitable, but I'm not certain why that would be.

  

 Is a narrow deck C4B5 acceptable for a 10?  I  hope someone else has one...

  

 Thanks

  

 Andy

 	  Quote: 	
		  



href="[/url][url=http://www.matronics.com/Navigator?RV10-List]http://www.matronics.com/Navigator?RV10-List">[/url][url=http://www.matronics.com/Navigator?RV10-List]http://www.matronics.com/Navigator?RV10-List

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[b]

Space Cadet

Joined: 10 Jan 2008
Posts: 14
Location: Denver

Posted: Thu Oct 08, 2009 10:29 am Post subject: Re: Will an IO-540-C4B5 narrow deck work for an RV-10

FWIW, I believe Lycoming stopped making the narrow-deck simply because they wanted a single production line, and the wide-deck had some other advantage relative to the product line they offer, I forget what.  I've got a C4B5 too, although not flying yet.



Thanks for the lead on swapping ears with the Rocket guys, would never have known that and was going to order new parts soon.



Dwight

noconwud(at)earthlink.net
Guest

Posted: Fri Oct 09, 2009 11:39 am Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

Thanks to all for the great, and relieving, information.



How do I get a hold of a Rocket guy?  Google?



Andy



---

rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Fri Oct 09, 2009 12:52 pm Post subject: Will an IO-540-C4B5 narrow deck work for an RV-10

Rick Gray



http://rv6rick.tripod.com/ohiovalleyrvators/id22.html

--

_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

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