When will you change your plug?
04-02-2008 | 12:49 PM
#26
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From: Poolesville, MD
RE: When will you change your plug?
ORIGINAL: lwgreen
Hi,
thats good info, I will be installing more inverted engines and will take this into account. We were using a onboard glow system on our inverted engines , is that still done with using the 4c plugs, eather 4c or 2c inverted or is there a better system or way to keep the glow in the glow plug???
This is great, thanks. Things have changed, but this helps a lot, don't feel like its going to be that hard with all this help at my finger tips.
Hi,
thats good info, I will be installing more inverted engines and will take this into account. We were using a onboard glow system on our inverted engines , is that still done with using the 4c plugs, eather 4c or 2c inverted or is there a better system or way to keep the glow in the glow plug???
This is great, thanks. Things have changed, but this helps a lot, don't feel like its going to be that hard with all this help at my finger tips.
Since I purchased a bunch of the Fox Miracle plugs last year, I've used them in most of my inverted engine installs.
I find that you need to be a bit more careful tuning the engine when it is inverted, but that's about the only problem I've come accross.
I purchased an on-board glow system for one engine/plane, that was a bit tempermental at first... but after I ran about a gallon through the engine I found that it became very well behaved so I've never installed the onboard ignitor on any plane.
04-02-2008 | 06:27 PM
#27
Senior Member
RE: When will you change your plug?
Changing plugs is often is a ten minute fix for a tuning problem. I change maybe one plug per year for a fleet of 16 airplanes.
Plugs should be changed for the following reasons:
1. The element is burned out.
2. The coil is distorted.
3. Foreign material is on the element.
4. To experiment with a different heat range.
Trash will enter the intake will take a plug out.
Trash in the fuel system will result in a temporary lean condition burning out the element.
Some oils used for after run will contaminate the glow element.
Otherwise problems are tuning and not plug related.
Bill
Plugs should be changed for the following reasons:
1. The element is burned out.
2. The coil is distorted.
3. Foreign material is on the element.
4. To experiment with a different heat range.
Trash will enter the intake will take a plug out.
Trash in the fuel system will result in a temporary lean condition burning out the element.
Some oils used for after run will contaminate the glow element.
Otherwise problems are tuning and not plug related.
Bill
