glow plug testing

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blackacre
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glow plug testing

Post by blackacre »

Could anyone please tell me if you connect a multimeter between the tip of a glow plug where the live comes in and the body of the plug where it screws into the manifold should there be continuity? Many thanks. Richard

Nick
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Location: Somerset UK

Re: glow plug testing

Post by Nick »

Hi, Ive never tested mine (because it works), but yes there should be continuity across it, but not a dead short. Put your multimeter on ohms setting, you should have a certain amount of resistance, like every heating element should when working ok.

Are your symptoms a) glowplug not working or b) blowing fuses/melting wires?
Oh yay, look, another seized bolt! Lets get a hammer.....and some kano.....and some cider!

blackacre
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Re: glow plug testing

Post by blackacre »

Connected the glow plug today across a battery charger and it glows red after 40 seconds so I guess its ok. Thanks for the reply.

marcusgs
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Location: Spalding, Lincolnshire, England

Re: glow plug testing

Post by marcusgs »

Hi.

It really should glow red a few seconds after you put 12v through it...
Mark

blackacre
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Re: glow plug testing

Post by blackacre »

For the sake of 20 pounds I just ordered a new one on ebay. Should improve starting.

scoobyjim
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Re: glow plug testing

Post by scoobyjim »

take plug out, and connect to battery. after about 2 seconds it should be warm and after about 4 seconds it should be glowing

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