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Glow plug wiring

Posted: Mon Jun 29, 2015 9:53 pm
by Articulator
Just did rd28 to td42 conversion in my gu .hooking the glow plugs up through a push button on dash with inline 35 amp fuse every time I push the button the fuse blows is the fuse big enough and should it go through a rely :armsup:

Re: Glow plug wiring

Posted: Mon Jun 29, 2015 10:16 pm
by chris_stoffa
Highly likely not enough , My little Bravo has a 60 amp fuse - suggest you might want to check out what is actually correct for your vehicle

Re: Glow plug wiring

Posted: Tue Jun 30, 2015 8:57 am
by date
According to my Haymes manual for the Pajero, the resistance for the glow plugs should be 0.05 to 0.07 ohms. At 12 Volts, 0.06 ohms corresponds to 200 amps. OK - as they start to heat up, the resistance increases, and the current decreases but I would say that your fuse rating is way too low. You would need a slow blow fuse if you are going that way. I would recommend a relay because the currents are very high. The Pajero uses a busbar for the glow plugs so that in itself indicates that the currents are high.