bj60 glow plug timer location - Page 2

knorrena · 02-08-06, 02:22 PM

The full voltage part of my timer has failed so I read this thread and looked at the wiring diagram to make sense of the above mod. I see two potential adendums to the proposed mod. First, what about running the glow plug indicator light directly off the glow plug bus bar? The advantage would be that the indicator lights up whenever power is applied to the glow plugs. The second is to run a NO double pole toggle switch that would activate the primary glow relay in one position and the afterglow relay in the other position. The advantage to this arrangement is that you have complete control (as mentioned) but all the control is housed in a single switch. Do these adendums seem plausible?

Karl

brownbear · 02-08-06, 04:48 PM

personally, I would not bother with afterglow. just use the primary for an afterglow when you're started.

what ever you use for the switch, ensure it turn off when you let go. Otherwise if you leave them on you will cook them possible to molten metal.

having the indicator light off the busbar will only tell you the relay works. Doing it as mentioned above is simple but will not tell you if the relay has stopped. Neither way is going to tell you that the glow plugs work, they could be burnt out.
I know when the glows are getting power based on the nose dive the volt meter does. And the light is not really needed. But does look nice to look at.

The light is nice if you use a switch that stays on, it can tell you that you left it on. But with a push button switch its not nessacary.

But its your mod, do as you please. Have mulitple switches and afterglows if you wish.

I like the simplicty of the mod Greg descibes.

Put in 10.5 volt glow plugs, lose the resistor and you will have great starts.

I left the resistor in and have to glow longer. As well use more battery juice.....I will remove it soon.

knorrena · 02-09-06, 09:26 AM

So which bit is the resistor? The manual is not too clear on this. I had a look last night and the only thing that I suspect might be the resistor is the part of the bus bar that looks like stainless. To bypass that could a fella just solder some ends on a bit of 1 Ga. and run from the post used by the relays?

Karl

mike · 11-13-07, 03:42 PM

Will this set-up work on a 86 hj60? Thx

brownbear · 11-13-07, 11:49 PM

Quote:

Originally Posted by knorrena

So which bit is the resistor? The manual is not too clear on this. I had a look last night and the only thing that I suspect might be the resistor is the part of the bus bar that looks like stainless. To bypass that could a fella just solder some ends on a bit of 1 Ga. and run from the post used by the relays?

Karl

The resistor is on the busbar. It's the one for the 6 volt plugs. Which are meant for fast heat and short glow.

The afterglow has a resistor as well, which I think is in the timer box, but I dunno.

To bypass the resistor you may be able to just stack the lead and bar together under the nut that screws into the resistor. And leave the resistor in place.

brownbear · 11-13-07, 11:51 PM

Quote:

Originally Posted by mike

Will this set-up work on a 86 hj60? Thx

You mean go manual? It should work. But I don't know for sure.

Search "wilson" for some ideas.

Big Blue 84BJ60 · 11-14-07, 12:05 AM

it will work just fine make sure you wire it up from the main relay to the glow bar if not you will fry the after glow (because 4 will do it, 6 will do it faster)
I have a bj60 was super glow (now manual glow), and im almost 100% sure the hj60 super glow is the same system just 6 plugs instead of 4

Big Blue 84BJ60 · 11-14-07, 12:10 AM

i also switched plugs to ngk y-147T they are 10.5 volt and i can start my truck at -45 and fire the plugs for two mins + (it usualy only needs 15 sec to start and run smooth)

mike · 11-14-07, 07:45 PM

I took a voltage reading at the glow bar---glow 8.9 volts and 10.7volts afterglow. Are these reading correct for hj60 24volts system unmodified? Thx

polarweasel · 12-02-07, 01:14 PM

Hmm, mike, those voltages seem backwards.

mike · 12-03-07, 06:57 AM

Yes those are the voltage readings I got . What should they be? Thx

polarweasel · 12-06-07, 01:24 PM

The voltage at the bus bar should be higher (hotter plugs) in the initial glow phase, and lower in the afterglow (cooler plugs).

mike · 12-06-07, 09:22 PM

Quote:

Originally Posted by polarweasel

The voltage at the bus bar should be higher (hotter plugs) in the initial glow phase, and lower in the afterglow (cooler plugs).

What could be cause perhaps my timer has screwed up?

polarweasel · 12-08-07, 11:31 PM

Sounds like fun from a previous owner... double-check all that wiring, and then suspect the timer.

02-08-06, 04:48 PM	#32
brownbear Mod in Hibernation Join Date: Sep 2004 Location: Where diesels purr and turbos whine TLCA# 15584 Posts: 6,183	personally, I would not bother with afterglow. just use the primary for an afterglow when you're started. what ever you use for the switch, ensure it turn off when you let go. Otherwise if you leave them on you will cook them possible to molten metal. having the indicator light off the busbar will only tell you the relay works. Doing it as mentioned above is simple but will not tell you if the relay has stopped. Neither way is going to tell you that the glow plugs work, they could be burnt out. I know when the glows are getting power based on the nose dive the volt meter does. And the light is not really needed. But does look nice to look at. The light is nice if you use a switch that stays on, it can tell you that you left it on. But with a push button switch its not nessacary. But its your mod, do as you please. Have mulitple switches and afterglows if you wish. I like the simplicty of the mod Greg descibes. Put in 10.5 volt glow plugs, lose the resistor and you will have great starts. I left the resistor in and have to glow longer. As well use more battery juice.....I will remove it soon. __________________ -84 BJ60, Finally on the FN road! -91 FJ80, wife's ride Iron Butt award winner of the Cruise Moab 08 !

12-02-07, 01:14 PM	#40
polarweasel Where's mah cruzah? Join Date: May 2004 Location: Boulder, Colorado TLCA# 17558 Posts: 788	Hmm, mike, those voltages seem backwards. __________________ 84 FJ60, locked and lifted and dismantled with Mercedes diesel 1982 BJ42 loud and slow daily driver on 33s Horsetooth 4-Wheelers

12-06-07, 01:24 PM	#42
polarweasel Where's mah cruzah? Join Date: May 2004 Location: Boulder, Colorado TLCA# 17558 Posts: 788	The voltage at the bus bar should be higher (hotter plugs) in the initial glow phase, and lower in the afterglow (cooler plugs). __________________ 84 FJ60, locked and lifted and dismantled with Mercedes diesel 1982 BJ42 loud and slow daily driver on 33s Horsetooth 4-Wheelers

12-08-07, 11:31 PM	#44
polarweasel Where's mah cruzah? Join Date: May 2004 Location: Boulder, Colorado TLCA# 17558 Posts: 788	Sounds like fun from a previous owner... double-check all that wiring, and then suspect the timer. __________________ 84 FJ60, locked and lifted and dismantled with Mercedes diesel 1982 BJ42 loud and slow daily driver on 33s Horsetooth 4-Wheelers

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02-08-06, 02:22 PM	#31
knorrena IH8MUD Addict Join Date: Nov 2005 Location: Calgary Posts: 890	The full voltage part of my timer has failed so I read this thread and looked at the wiring diagram to make sense of the above mod. I see two potential adendums to the proposed mod. First, what about running the glow plug indicator light directly off the glow plug bus bar? The advantage would be that the indicator lights up whenever power is applied to the glow plugs. The second is to run a NO double pole toggle switch that would activate the primary glow relay in one position and the afterglow relay in the other position. The advantage to this arrangement is that you have complete control (as mentioned) but all the control is housed in a single switch. Do these adendums seem plausible? Karl

02-09-06, 09:26 AM	#33
knorrena IH8MUD Addict Join Date: Nov 2005 Location: Calgary Posts: 890	So which bit is the resistor? The manual is not too clear on this. I had a look last night and the only thing that I suspect might be the resistor is the part of the bus bar that looks like stainless. To bypass that could a fella just solder some ends on a bit of 1 Ga. and run from the post used by the relays? Karl

11-13-07, 03:42 PM	#34
mike IH8MUD Addict Join Date: Mar 2003 Location: Toronto,Canada Posts: 863	Will this set-up work on a 86 hj60? Thx

11-14-07, 12:05 AM	#37
Big Blue 84BJ60 IH8MUD Regular Join Date: Aug 2007 Location: brampton ont Posts: 252	it will work just fine make sure you wire it up from the main relay to the glow bar if not you will fry the after glow (because 4 will do it, 6 will do it faster) I have a bj60 was super glow (now manual glow), and im almost 100% sure the hj60 super glow is the same system just 6 plugs instead of 4

11-14-07, 12:10 AM	#38
Big Blue 84BJ60 IH8MUD Regular Join Date: Aug 2007 Location: brampton ont Posts: 252	i also switched plugs to ngk y-147T they are 10.5 volt and i can start my truck at -45 and fire the plugs for two mins + (it usualy only needs 15 sec to start and run smooth)

11-14-07, 07:45 PM	#39
mike IH8MUD Addict Join Date: Mar 2003 Location: Toronto,Canada Posts: 863	I took a voltage reading at the glow bar---glow 8.9 volts and 10.7volts afterglow. Are these reading correct for hj60 24volts system unmodified? Thx

12-03-07, 06:57 AM	#41
mike IH8MUD Addict Join Date: Mar 2003 Location: Toronto,Canada Posts: 863	Yes those are the voltage readings I got . What should they be? Thx