Hi All,
Sorry if the glow stuff/Wilson switch has been bashed to death on this forum but unfortunately I am kind of in a state from one of the previous owners where I have neither a super glow system or proper Wilson switch.
My BJ40 is 24v and it was upgraded to a 3B engine at some point in its life, the wiring seems a bit of a mishmash (could be from another Land Cruiser model?). Anyway it was starting like a dog when it was cold so I decided to investigate.
Unfortunately my electrical knowledge is very basic, I made a diagram below how I think my current glow system works. It looks very simple and incorrect from what I understand and also doesn't work properly.
My initial troubleshooting consisted of checking the voltage on the current glow plugs which was showing at around 9v which I thought was strange considering the 24v setup. When removing the old glow plugs I discovered they were 10.5v so I got excited and thought I was onto a winner "someone put the wrong plugs in" I said. I purchased Denso 20.5v ones as per the Toyota number 19850-68040 but after excitedly putting them in I was disappointed when I went to start it and it spluttered into life like the old dog it was before the glow plug change, seeming not to have improved at all.
After this disappointment I decided to investigate more and try and find something online about what's going on. I did some more tests and discovered that I maybe had something in the past called super glow but someone looks to have hacked away. I discovered that they also left some part of the bars there and the 24v line going to these bars seems to drop to 13v at the first twist like some kind of resistor. I thought this seems stupid, my 20.5v glow plugs are only getting 13v meaning they probably don't work well.
The last troubleshooting I did was to put a direct jump lead from the positive on my battery to the first glow plug on the bar. I could then see the glow plugs were getting 24v. After around 15 seconds I took the lead off and fired it up. To my excitement it started perfectly and instantly.
Now to how it is currently setup as per one of the previous owners
Video of the wiring/glow setup:
Video of start with direct 24v to glow plugs avoiding blow button, dodgy wiring etc:
Glow wiring as it currently stands from the previous owners (how I believe it is unless I am missing something):
So I believe I need to fix all this, would it be possible for someone to advise/guide me on this. As I said, I am not very advanced with electrics so I am kind of clueless as to what gauge wire I need to put in there, what relay to get plus I would like to make the old glow coil on the dash work so I can see how the glow plugs are glowing if this is possible and get a nicer button that suits the BJ40.
Thanks for all your help and time in advance, I really appreciate it.
Stuart.
Sorry if the glow stuff/Wilson switch has been bashed to death on this forum but unfortunately I am kind of in a state from one of the previous owners where I have neither a super glow system or proper Wilson switch.
My BJ40 is 24v and it was upgraded to a 3B engine at some point in its life, the wiring seems a bit of a mishmash (could be from another Land Cruiser model?). Anyway it was starting like a dog when it was cold so I decided to investigate.
Unfortunately my electrical knowledge is very basic, I made a diagram below how I think my current glow system works. It looks very simple and incorrect from what I understand and also doesn't work properly.
My initial troubleshooting consisted of checking the voltage on the current glow plugs which was showing at around 9v which I thought was strange considering the 24v setup. When removing the old glow plugs I discovered they were 10.5v so I got excited and thought I was onto a winner "someone put the wrong plugs in" I said. I purchased Denso 20.5v ones as per the Toyota number 19850-68040 but after excitedly putting them in I was disappointed when I went to start it and it spluttered into life like the old dog it was before the glow plug change, seeming not to have improved at all.
After this disappointment I decided to investigate more and try and find something online about what's going on. I did some more tests and discovered that I maybe had something in the past called super glow but someone looks to have hacked away. I discovered that they also left some part of the bars there and the 24v line going to these bars seems to drop to 13v at the first twist like some kind of resistor. I thought this seems stupid, my 20.5v glow plugs are only getting 13v meaning they probably don't work well.
The last troubleshooting I did was to put a direct jump lead from the positive on my battery to the first glow plug on the bar. I could then see the glow plugs were getting 24v. After around 15 seconds I took the lead off and fired it up. To my excitement it started perfectly and instantly.
Now to how it is currently setup as per one of the previous owners
Video of the wiring/glow setup:
Video of start with direct 24v to glow plugs avoiding blow button, dodgy wiring etc:
Glow wiring as it currently stands from the previous owners (how I believe it is unless I am missing something):
So I believe I need to fix all this, would it be possible for someone to advise/guide me on this. As I said, I am not very advanced with electrics so I am kind of clueless as to what gauge wire I need to put in there, what relay to get plus I would like to make the old glow coil on the dash work so I can see how the glow plugs are glowing if this is possible and get a nicer button that suits the BJ40.
Thanks for all your help and time in advance, I really appreciate it.
Stuart.