Dez
New Member
Stressssssssssssssssssssssssssssssssss
Hi all
I have wired my glow plugs up asdescribed above. BUT WHY does my glow plug light not work (yes it is wired up as described above).
The relay is clicking in and out and i have power to the glow plugs.
can any one answer why does the relay need a feel of the red and yellow wire of the ignition, when it is only live when the engine is turning over? yes the bulb works but no power to the bulb when the relay clicks in to feed the glow plug.
Hi all
I have wired my glow plugs up asdescribed above. BUT WHY does my glow plug light not work (yes it is wired up as described above).
The relay is clicking in and out and i have power to the glow plugs.
can any one answer why does the relay need a feel of the red and yellow wire of the ignition, when it is only live when the engine is turning over? yes the bulb works but no power to the bulb when the relay clicks in to feed the glow plug.
so it was a 200 and you then put another 200 in?
Bear in mind that a poor earth wont always show up with a multimeter, cos they use very low current.
You say the plugs work OK? How have you tested this, cos those engines (at least my 300) will start fine with no plugs at all, turns over twice and fires.
Bear in mind that a poor earth wont always show up with a multimeter, cos they use very low current.
You say the plugs work OK? How have you tested this, cos those engines (at least my 300) will start fine with no plugs at all, turns over twice and fires.
Adz
New Member
'ere Sean... have you met Tweets?
4x4madness
Active Member
Quite a useful thread. I'm going to try and get my glow plug light working on a timer relay.
seem a bit deer though http://www.ebay.co.uk/itm/220732905409?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
seem a bit deer though http://www.ebay.co.uk/itm/220732905409?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
joshremlin
Active Member
Right guys sorry for digging a old thread up but it saves a new one if I can get the answers I want... according to this relay what size wire would you recommend for each plug?
I’m starting from scratch as the old v8 I have had a engine conversion in 2011 and it appears they have completely not bothered wiring in the glow plugs
Thanks
discomania
Well-Known Member
Right the plugs are usually about 90W - at 12V that is 7.5A - however on a cold morning with low battery voltage that could be 9A - so allow 10 per piece and you have then engineered in your safety factor.
So I would suggest a cable suitable for 40A total MINIMUM, so 4.0mm^2 or go up a size to 5.0 mm^2 cable which would be good for about 45A - you could go even further and use 6.0 for 50A.
Always fuse circuits properly and you will never have any issues - if I was building this circuit I think I would go for 50A design load.
Interestingly Land Rover used to use a 60A fuse in the 300tdi fuseboxes for these...
So I would suggest a cable suitable for 40A total MINIMUM, so 4.0mm^2 or go up a size to 5.0 mm^2 cable which would be good for about 45A - you could go even further and use 6.0 for 50A.
Always fuse circuits properly and you will never have any issues - if I was building this circuit I think I would go for 50A design load.
Interestingly Land Rover used to use a 60A fuse in the 300tdi fuseboxes for these...
discomania
Well-Known Member
Also, if you have not had glow plugs since 2011 then what is the rush now? Assuming it starts OK without!
