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Burnt Out Norvel Glow Head

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Wanted Burnt Out Norvel Glow Head

Post  NEW222 on Sun Mar 15, 2015 10:43 am

Hi there. Just picked up a Norvel this weekend and would like to do a conversion for a standard glow plug on it. So, if anyone out there would happen to have an old plug laying around, I would be interested. Thank you. I also read that a Cox head would also work on it.
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Wanted Re: Burnt Out Norvel Glow Head

Post  pkrankow on Sun Mar 15, 2015 12:39 pm

Cox heads go right on, no problem.  

What is wrong with the drop-in type plug and clamp head?  It really is a good setup, more so since it is still available new. You can also buy the conversion from Bernie at Coxengines.ca
http://coxengines.ca/top-end/
or Matt
http://www.exmodelengines.com/home.php?cat=267


Phil
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Wanted Re: Burnt Out Norvel Glow Head

Post  balogh on Sun Mar 15, 2015 12:59 pm

NEW222 wrote:Hi there.  Just picked up a Norvel this weekend and would like to do a conversion for a standard glow plug on it.  So, if anyone out there would happen to have an old plug laying around, I would be interested.  Thank you.  I also read that a Cox head would also work on it.

NV enginers are selling the conversion kit:

http://www.nvengines.com/index.php?page=shop.product_details&flypage=flypage-ask.tpl&product_id=71&category_id=4&option=com_virtuemart&Itemid=65
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Wanted Re: Burnt Out Norvel Glow Head

Post  NEW222 on Sun Mar 15, 2015 3:30 pm

Nothing wrong with either, I just like to tinker around in my spare time. I was at Cox International website yesterday and have one of theirs in my 'cart'. Thank you.
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Wanted Re: Burnt Out Norvel Glow Head

Post  fredvon4 on Sun Mar 15, 2015 5:20 pm

I highly recommend the Galbreath head adapter and Nelson plugs...wink...hint hint

http://kittingittogether.com/index.php?

http://www.the-printer.net/DookCat.html#head
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Wanted Re: Burnt Out Norvel Glow Head

Post  RknRusty on Sun Mar 15, 2015 8:39 pm

The conversion to a standard plug will lower performance. The medium hot drop-ins are a direct replacement for the Norvel plug.

http://coxengines.ca/insert-for-.049-head-adapter-3-5-fins-medium-hot.html

With a new engine use several head gaskets(shims). I always use at least two after the engine is in service with 35% nitro. I found it much easier to start and break in with a Babe Bee head.

It's probably been said, but break it in opposite of How you'd break in a Cox.
Immediately peak it to get it hot, then richen momentarily once in a while and go back to lean. Its metallurgy needs the heat of peak rpms to find its fit. I couldn't crank mine without a spring, but I wasn't really experienced with Tee Dees or Norvels at the time. I use springs on all of them.
Rusty

Edited for clarity


Last edited by RknRusty on Mon Mar 16, 2015 3:56 am; edited 1 time in total (Reason for editing : Unclear ststement)

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Wanted Re: Burnt Out Norvel Glow Head

Post  NEW222 on Sun Mar 15, 2015 8:50 pm

Great, thank you for the tips on the break-in. I have not ever ran an engine like this, so it is all new to me.
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Wanted Re: Burnt Out Norvel Glow Head

Post  balogh on Mon Mar 16, 2015 12:36 am

Rusty you said run it in the opposite direction during beak in? What is this for?
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Wanted Re: Burnt Out Norvel Glow Head

Post  RknRusty on Mon Mar 16, 2015 3:51 am

balogh wrote:Rusty you said run it in the opposite direction during beak in? What is this for?

I mean you break in a Cox by running it rich, occasionally peaking it, until it will hold peak without sagging. You break in a Norvel(AAC, ABC, AAN, Revlite) by running it at peak, occasionally Richening it until it holds peak without ever sagging.

Sorry about the unclear description.

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Wanted Re: Burnt Out Norvel Glow Head

Post  GallopingGhostler on Mon Mar 16, 2015 6:30 am

You can use a Cox International/EX Engines/MECOA glow plug adapter head, depends on what you're shooting for. I've used one on a Norvel .061 Big Mig. It still provides sparkling performance, hauling a venerable heavy 40" Sureflite Cessna 180 foam ARF and my 36" Airtronics Q-Tee with authority, definitely better than an .049 reedy. Bernie at Cox International has or had a warning on his item descriptions mentioning a couple hundred RPM loss. It's worth a try to get a feel for it. If it doesn't put out the results you want on a model, you can always change it.
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