"Replacing" glow plug timer with push button switch

[mblack]

Appears the glow plug timer on my delica is malfunctioning, not the relay as the previous owner had thought. I can hear the relay click on and then off after 1 second or so. After looking at the schematics of the glow plug circuit that Bruce posted, I was able to get relay 1 to stay closed with 12V jumpered straight from the battery to the green post - voila!...nice easy start.

Rather than mess about with the glow plug controller I'm going to cut the green wire from the controller and run 12V to the green post on relay 1 from a push button switch on the dash (crushers provided a link to IH8MUD for this). Power will be supplied from the radio source (ignition switched source) with a 10A fuse between this connection and the push button switch. This set-up should give me control of the primary glow plug heaters while still using the existing relay and wiring. Sound reasonable?

Also have some BFG A/T's on the way...everything should be in order for the snow to fly...

[39Ronin]

Sounds reasonable, thats exactly what I did. I purchased 1986 F250 glow plug relay for $25, 14 gauge wire, and a momentary rocker switch (I didn't want to use the original relays). You will notice beside your rear gate release there is an extra switch spot with a blank (already has a wiring harness with power to it), mount it in there for a seemless look. I reused the existing wires and and jumped the 12V into the glow plugs, I know some guys are worried that you will wear out the plugs prematurely but I only hold it for 3 or 4 seconds. Worst case; if the 6V plugs burn out, I will replace them with 12V plugs. It fires up like a charm.

[mblack]

Thanks for that. No extra switch spot on our rig. I used the one beside the cigarette lighter and ran power from the radio. Since it's already fused I decided not to run an inline fuse, and used the existing relay. Lucky for me, the previous owner put new glow plugs in it, I assume in trying to fix the problem. The system works perfectly - about 2m wire, a few connectors and a $12 switch from Napa. Sweet.

[L300Foca]

Thanks for that. No extra switch spot on our rig. I used the one beside the cigarette lighter and ran power from the radio. Since it's already fused I decided not to run an inline fuse, and used the existing relay. Lucky for me, the previous owner put new glow plugs in it, I assume in trying to fix the problem. The system works perfectly - about 2m wire, a few connectors and a $12 switch from Napa. Sweet.

Nice! Ill try that

[john james]

I found out that the water temperature sensor on my Delica had gone open circuit i.e indicating that the engine temperature was above 80 degrees. This caused the 1 sec trip out of the glow timer so lots of churning on the starter motor on start. Just pull the the lead of the water sensor terminal first before going to the trouble of fitting a manual bypass and listen for a click after 4/5 secs, maybe your be lucky!

[L300Foca]

I found out that the water temperature sensor on my Delica had gone open circuit i.e indicating that the engine temperature was above 80 degrees. This caused the 1 sec trip out of the glow timer so lots of churning on the starter motor on start. Just pull the the lead of the water sensor terminal first before going to the trouble of fitting a manual bypass and listen for a click after 4/5 secs, maybe your be lucky!

"pull the the lead of the water sensor" will u explain please ? And where is exactly water sensor? Picture?
Thanx

[marsgal42]

Why not just fix it properly? The failure modes are well-understood and are easy to fix.

...laura

[L300Foca]

Why not just fix it properly? The failure modes are well-understood and are easy to fix.

...laura

? Link? Explain?

[gramadin]

I had a manual switch installed few weeks ago by CVI, I was told this is unbreakable system as you bypass the ECU.
The risk of failure is very slim.
The cost was around 100$.

[L300Foca]

Manual switch installed! 7 seconds and start

PERFECT !!!