Just wondering if anyone here runs a manual glow plug switch an any problem you have with them?
I managed to get my pajero really really stuck in some mud after getting my new mud tyres...
needless to say it took a beating an now my glowplug relay is stuffed as well as the alternator
rather than replacing the broken parts im thinking il just run a switch to the glow plugs an do it that way to avoid future problems
anyways some info needed on weither this is ok to do on a pajero an what you people think about doing this?
manual glow plug switch - input needed
- chchzookfan
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manual glow plug switch - input needed
i love suzukis!
- tomsoffroad
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Re: manual glow plug switch - input needed
I did this to a mate pajero year or to ago.
Find your relays (passenger side firewall area??) Then find the 12v+ input. Then just run a wire from the battery, through a fuse (15amp should be heaps) through a push on switch then to the relay. Make sure you use wire the same size as the relay wire. A starter button is the best bet for a switch.
If I remember correctly Pajeros need heaps of glowing, this is a good mod

Find your relays (passenger side firewall area??) Then find the 12v+ input. Then just run a wire from the battery, through a fuse (15amp should be heaps) through a push on switch then to the relay. Make sure you use wire the same size as the relay wire. A starter button is the best bet for a switch.
If I remember correctly Pajeros need heaps of glowing, this is a good mod


Re: manual glow plug switch - input needed
Interesting. Is there anything bad about glowing for longer than factory time period? Could be a good thing to do to other diesel engines maybe. My hiace van with the 3l glows for less than a second and is hard starting sometimes so wonder if that could fix it?
- tomsoffroad
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Re: manual glow plug switch - input needed
Don think there is any problem with manual glow. The Pag I did is still going strong. 

Re: manual glow plug switch - input needed
chchzookfan wrote:Just wondering if anyone here runs a manual glow plug switch an any problem you have with them?
need to check what voltage glow plugs it uses.
some have low voltage plugs (eg 9v) and feed them 12v for a short time to make them heat up quick. then they switch to resistor etc to reduce voltage for the rest of the time they are on.
so running 12v on them manually can burn them out as its easy to have them on for to long.
- tomsoffroad
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Re: manual glow plug switch - input needed
need to check what voltage glow plugs it uses.
some have low voltage plugs (eg 9v) and feed them 12v for a short time to make them heat up quick. then they switch to resistor etc to reduce voltage for the rest of the time they are on.
so running 12v on them manually can burn them out as its easy to have them on for to long
True true. Think relays are 12v tho (30sec with a multimeter will tell you). The one I did got new glowplugs at the time. Everyday use for last 2 years and lives outside. Still going strong.


- rangimotors
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Re: manual glow plug switch - input needed
tweake wrote:chchzookfan wrote:Just wondering if anyone here runs a manual glow plug switch an any problem you have with them?
need to check what voltage glow plugs it uses.
some have low voltage plugs (eg 9v) and feed them 12v for a short time to make them heat up quick. then they switch to resistor etc to reduce voltage for the rest of the time they are on.
so running 12v on them manually can burn them out as its easy to have them on for to long.
has nothing to do with it if the only thing you do is pull out the timer and run a 12v switch to the relay. If the plugs are wired 9v through the relay then they wil still be 9v on the relay if you ONLY change the switch side and don't run 12v switch direct to the plugs.
No need to re-wire the full system, if the relay is stuffed then replace it (they are worth nothing) and as tom said above just flag the timer and run a switch to open and close the relay as needed.
Never argue with an idiot, they drag you down to their level then beat you with experiance!
Re: manual glow plug switch - input needed
rangimotors wrote:has nothing to do with it if the only thing you do is pull out the timer and run a 12v switch to the relay. If the plugs are wired 9v through the relay then they wil still be 9v on the relay if you ONLY change the switch side and don't run 12v switch direct to the plugs.
problem you might get with that is slow glowing depending on type of glow plug they have.
i know with some of the toyotas its better to change to 12v glows and manual switch.