Testing glow plugs

[Alun]

Is there an easy was as I'm fairly sure mine arent working.

I have checked the 80A fuse and all seems ok.

Can someone point me in the direction of a 12V feed?

Thanks peeps.

[Koi]

Remove the glow plug buzz bar, check there is continuity between the glow plug post and earth, if there is they work, if not replace them.
Apparently you need to disonnect the negative and buzz bar on tests as
the readings could be false due to feed across the bar & negative.

[Vagrant No2]

Put body of glow plug on negative terminal of battery, put power to threaded part of plug, plug should start glowing.

Remove the glow plug buzz bar, check there is continuity between the glow plug post and earth, if there is they work, if not replace them.
Apparently you need to disonnect the negative and buzz bar on tests as
the readings could be false due to feed across the bar & negative.

Blimey Nigel , I think that is a little dangerous way to test glow plugs . Possibilitey of sparks igniting gas from batterys and then burning your hands on the hot glow plugs .
You can test glow plugs and timer .
You will need a volt meter and connect it to the buzz bar and to a negative ie engine block or such . Turn on ignition and 12v should appear on gauge . It should go off after a pre set time (anyone confirm time) .
This will tell there is a supply to plugs . To test condition you do need a amp draw meter . That will tell by high reading that all is good that a high resistance is in glow plugs ie they are working well .
Not really a home test solution , but if the vehicle is a fair age they will be deteriated anyway and could need changing anyway. Not a high cost to change but I beleive a little fiddley to do the job .

Rick

[Koi]

Blimey Nigel , I think that is a little dangerous way to test glow plugs . Possibilitey of sparks igniting gas from batterys and then burning your hands on the hot glow plugs .
You can test glow plugs and timer .
You will need a volt meter and connect it to the buzz bar and to a negative ie engine block or such . Turn on ignition and 12v should appear on gauge . It should go off after a pre set time (anyone confirm time) .
This will tell there is a supply to plugs . To test condition you do need a amp draw meter . That will tell by high reading that all is good that a high resistance is in glow plugs ie they are working well .
Not really a home test solution , but if the vehicle is a fair age they will be deteriated anyway and could need changing anyway. Not a high cost to change but I beleive a little fiddley to do the job .

Rick

So if it ignites the gases and you burn your hands then you know its working, see the sensible second half of my reply