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Glow plug identification

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Keat21/09/2008 17:37:00
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40 forum posts

Guys.

How do you identify glow plugs..

I want to carry a few spares,

It has a number 8 on it, so I'm guessing I ask for an 8.

But how would I identify if this is hot, cold, medium, or source an alternative.

There are loads on Ebay, all with differing specs. it's a bit of a mine field

Thanks

Keat21/09/2008 17:41:00
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40 forum posts
I've bought 5% fuel, if this should make any difference.?
Andy Gates21/09/2008 22:05:00
636 forum posts
19 photos

If it has an 8 on it, then it is a number 8 plug made by OS. Enya's equivalent would be a Number 3 I believe.

A hotter plug by OS would be an A3 plug.

All 3 plugs would work with 5% nitro fuel. It depends on the motor as to what exactly you need.

Keat22/09/2008 18:09:00
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40 forum posts

I did a little research last night, in anticipation of me nipping out of work a lunch time.

I came back with 2 x No8's and 2 x A3's, so I have an option to play.

Does anyone have a cross reference chart ?, so I can see what an equivilent manufaturere would be.

Plus I have an idea, maybe someone's already thought of it, or has already done it.... your thoughts please.

Whats the life expectancy of a glow plug... based on 10 minutes flying time, how many flights would you get on average.

If you measure the resistance on a brand new plug, or a number of plugs to gain an average.

Then as time goes on, measure the resistance, say once per week, or once per 10 flights.. would you be able to measure a difference over a set period, thus enabling one to predict a failure ??

Just a thought.

Andy Gates22/09/2008 18:36:00
636 forum posts
19 photos

The most obvious way of telling the condition of your plug is when you connect it to your starter panel.

If you find yourself turning the power up during a normal starting pattern, then that suggests the plug is on its way out, assuming your starter battery is fully charged that is....

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