Burnt Out Norvel Glow Head

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

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.

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

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

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.

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

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.

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.