Volvo md2020. GLOW PLUG TEST

[fontmell]

Hi help please
..
Can you tell me how to test if glow plug is working. I understand from previous post need to measure ohms with multi meter please tell me where to measure from and to and what reading should be.
Please spell out how to do it as I have no idea
Many thanks

 

[Beneteau381]

Hi help please
..
Can you tell me how to test if glow plug is working. I understand from previous post need to measure ohms with multi meter please tell me where to measure from and to and what reading should be.
Please spell out how to do it as I have no idea
Many thanks

easier to put a live wire to it to see if it gets warm. Using an ohm meter can be a bit dodgy with it not having a "load" on it

 

[peteK]

When I checked mine I just removed them and put 12v across them,they are readily available and you dont need to pay marine prices,there is a number stamped on the side.Y107V. Just put that in to ebay and there around £7.

 

[PaulRainbow]

Take all of the wires off of the glow plugs.
Find a length of wire.
Hold one end of the wire on a good positive connection.
Briefly touch/untouch the other end on the threaded part of the glow plug (where the wire came from).
If you get a little spark when the wire touches the glow plug is OK.

No spark = no current flowing = glowplug dead.
BIG spark (as in short circuit type spark) = glowplug has failed short circuit (much, much less common. would be something else in need of attention too, such as a fuse, blown by the shorted glowplug)

 

[tillergirl]

At the risk of being glib and or trite, having run them for 30 seconds, you could just feel them. If there is warmth........

 

[Plum]

At the risk of being glib and or trite, having run them for 30 seconds, you could just feel them. If there is warmth........

How far away from them were you standing? After 30 seconds the tips will be well over 800 degrees C

www.solocoastalsailing.co.uk

 

[Beneteau381]

How far away from them were you standing? After 30 seconds the tips will be well over 800 degrees C

www.solocoastalsailing.co.uk

I think he means in situ

 

[tillergirl]

I mean in situ Colin. Just feel the head adjacent to a glow plug. It should be warm. Well, they were for my 2030 and actually that was on for a short time..

 

[Plum]

I mean in situ Colin. Just feel the head adjacent to a glow plug. It should be warm. Well, they were for my 2030 and actually that was on for a short time..

Oops, now I get it ?