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10-25-2009 | 03:40 AM

#35

DarZeelon

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From: Rosh-HaAyin, ISRAEL

RE: Plug temperature

Quote:

ORIGINAL: NikolayTT

Is it F so hot, or it is massive to retain the temperature, or both? - Please specify.

Nick,

A "hot" glow-plug's element, does not necessarily glow any hotter than a 'cold' one's.

What differentiates a hot plug from a cold one, is its heat retention.

This could be achieved by using a heavier gauge platinum wire (which takes longer to cool off) for the glow-element, but it can also be achieved by better 'insulating' the element, against heat-loss.
It is all in the time it takes the glow to cease - a hotter plug glows for a longer period.

Regarding the OS F; I can not sure if its glow element has a heavier gauge than, say, an OS #8.
But with its longer 'nose', the element does not lose its glow quite as quickly.

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